en Ontology for Biomedical Investigations Advisors for this project come from the IFOMIS group, Saarbruecken and from the Co-ODE group in Manchester Alan Ruttenberg Allyson Lister Barry Smith Bill Bug Bjoern Peters Carlo Torniai Chris Mungall Chris Stoeckert Chris Taylor Christian Bolling Cristian Cocos Daniel Rubin Daniel Schober Dawn Field Dirk Derom Elisabetta Manduchi Eric Deutsch Frank Gibson Gilberto Fragoso Helen C. Causton Helen Parkinson Holger Stenzhorn James A. Overton James Malone Jay Greenbaum Jeffrey Grethe Jennifer Fostel Jessica Turner Jie Zheng Joe White John Westbrook Kevin Clancy Larisa Soldatova Lawrence Hunter Liju Fan Luisa Montecchi Matthew Brush Matthew Pocock Melanie Courtot Melissa Haendel Mervi Heiskanen Monnie McGee Norman Morrison Philippe Rocca-Serra Phillip Lord Pierre Grenon Richard Bruskiewich Richard Scheuermann Robert Stevens Ryan R. Brinkman Stefan Wiemann Susanna-Assunta Sansone Tanya Gray Tina Hernandez-Boussard Trish Whetzel Yongqun He 2009-07-31 An ontology for representing biomedical investigations, including study designs, the collection and preparation of the targets of investigation, assays, instrumentation and reagents used, as well as the data generated and the types of analysis performed on the data to reach conclusions, and their documentation. OWL-DL An ontology for the annotation of biomedical and functional genomics experiments. http://creativecommons.org/licenses/by/4.0/ Ontology for Biomedical Investigations Please cite the OBI consortium http://purl.obolibrary.org/obo/obi where traditional citation is called for. However it is adequate that individual terms be attributed simply by use of the identifying PURL for the term, in projects that refer to them. 2025-12-18 editor preferred label editor preferred term editor preferred term editor preferred term~editor preferred label The concise, meaningful, and human-friendly name for a class or property preferred by the ontology developers. (US-English) PERSON:Daniel Schober GROUP:OBI:<http://purl.obolibrary.org/obo/obi> editor preferred label editor preferred term editor preferred term editor preferred term~editor preferred label example of usage A phrase describing how a term should be used and/or a citation to a work which uses it. May also include other kinds of examples that facilitate immediate understanding, such as widely know prototypes or instances of a class, or cases where a relation is said to hold. PERSON:Daniel Schober GROUP:OBI:<http://purl.obolibrary.org/obo/obi> example of usage has curation status PERSON:Alan Ruttenberg PERSON:Bill Bug PERSON:Melanie Courtot has curation status definition definition textual definition The official OBI definition, explaining the meaning of a class or property. Shall be Aristotelian, formalized and normalized. Can be augmented with colloquial definitions. The official definition, explaining the meaning of a class or property. Shall be Aristotelian, formalized and normalized. Can be augmented with colloquial definitions. 2012-04-05: Barry Smith The official OBI definition, explaining the meaning of a class or property: 'Shall be Aristotelian, formalized and normalized. Can be augmented with colloquial definitions' is terrible. Can you fix to something like: A statement of necessary and sufficient conditions explaining the meaning of an expression referring to a class or property. Alan Ruttenberg Your proposed definition is a reasonable candidate, except that it is very common that necessary and sufficient conditions are not given. Mostly they are necessary, occasionally they are necessary and sufficient or just sufficient. Often they use terms that are not themselves defined and so they effectively can't be evaluated by those criteria. On the specifics of the proposed definition: We don't have definitions of 'meaning' or 'expression' or 'property'. For 'reference' in the intended sense I think we use the term 'denotation'. For 'expression', I think we you mean symbol, or identifier. For 'meaning' it differs for class and property. For class we want documentation that let's the intended reader determine whether an entity is instance of the class, or not. For property we want documentation that let's the intended reader determine, given a pair of potential relata, whether the assertion that the relation holds is true. The 'intended reader' part suggests that we also specify who, we expect, would be able to understand the definition, and also generalizes over human and computer reader to include textual and logical definition. Personally, I am more comfortable weakening definition to documentation, with instructions as to what is desirable. We also have the outstanding issue of how to aim different definitions to different audiences. A clinical audience reading chebi wants a different sort of definition documentation/definition from a chemistry trained audience, and similarly there is a need for a definition that is adequate for an ontologist to work with. PERSON:Daniel Schober GROUP:OBI:<http://purl.obolibrary.org/obo/obi> definition definition textual definition editor note An administrative note intended for its editor. It may not be included in the publication version of the ontology, so it should contain nothing necessary for end users to understand the ontology. PERSON:Daniel Schober GROUP:OBI:<http://purl.obofoundry.org/obo/obi> editor note term editor Name of editor entering the term in the file. The term editor is a point of contact for information regarding the term. The term editor may be, but is not always, the author of the definition, which may have been worked upon by several people 20110707, MC: label update to term editor and definition modified accordingly. See https://github.com/information-artifact-ontology/IAO/issues/115. PERSON:Daniel Schober GROUP:OBI:<http://purl.obolibrary.org/obo/obi> term editor alternative label A label for a class or property that can be used to refer to the class or property instead of the preferred rdfs:label. Alternative labels should be used to indicate community- or context-specific labels, abbreviations, shorthand forms and the like. OBO Operations committee PERSON:Daniel Schober GROUP:OBI:<http://purl.obolibrary.org/obo/obi> Consider re-defing to: An alternative name for a class or property which can mean the same thing as the preferred name (semantically equivalent, narrow, broad or related). alternative label definition source Formal citation, e.g. identifier in external database to indicate / attribute source(s) for the definition. Free text indicate / attribute source(s) for the definition. EXAMPLE: Author Name, URI, MeSH Term C04, PUBMED ID, Wiki uri on 31.01.2007 PERSON:Daniel Schober Discussion on obo-discuss mailing-list, see http://bit.ly/hgm99w GROUP:OBI:<http://purl.obolibrary.org/obo/obi> definition source curator note An administrative note of use for a curator but of no use for a user PERSON:Alan Ruttenberg curator note imported from For external terms/classes, the ontology from which the term was imported PERSON:Alan Ruttenberg PERSON:Melanie Courtot GROUP:OBI:<http://purl.obolibrary.org/obo/obi> imported from elucidation person:Alan Ruttenberg Person:Barry Smith Primitive terms in a highest-level ontology such as BFO are terms which are so basic to our understanding of reality that there is no way of defining them in a non-circular fashion. For these, therefore, we can provide only elucidations, supplemented by examples and by axioms elucidation has associated axiom(nl) Person:Alan Ruttenberg Person:Alan Ruttenberg An axiom associated with a term expressed using natural language has associated axiom(nl) has associated axiom(fol) Person:Alan Ruttenberg Person:Alan Ruttenberg An axiom expressed in first order logic using CLIF syntax has associated axiom(fol) has axiom id Person:Alan Ruttenberg Person:Alan Ruttenberg A URI that is intended to be unique label for an axiom used for tracking change to the ontology. For an axiom expressed in different languages, each expression is given the same URI has axiom label ISA alternative term An alternative term used by the ISA tools project (http://isa-tools.org). Requested by Alejandra Gonzalez-Beltran https://sourceforge.net/tracker/?func=detail&aid=3603413&group_id=177891&atid=886178 Person: Alejandra Gonzalez-Beltran Person: Philippe Rocca-Serra ISA tools project (http://isa-tools.org) ISA alternative term IEDB alternative term An alternative term used by the IEDB. PERSON:Randi Vita, Jason Greenbaum, Bjoern Peters IEDB IEDB alternative term is part of my brain is part of my body (continuant parthood, two material entities) my stomach cavity is part of my stomach (continuant parthood, immaterial entity is part of material entity) this day is part of this year (occurrent parthood) a core relation that holds between a part and its whole Everything is part of itself. Any part of any part of a thing is itself part of that thing. Two distinct things cannot be part of each other. Occurrents are not subject to change and so parthood between occurrents holds for all the times that the part exists. Many continuants are subject to change, so parthood between continuants will only hold at certain times, but this is difficult to specify in OWL. See http://purl.obolibrary.org/obo/ro/docs/temporal-semantics/ Parthood requires the part and the whole to have compatible classes: only an occurrent can be part of an occurrent; only a process can be part of a process; only a continuant can be part of a continuant; only an independent continuant can be part of an independent continuant; only an immaterial entity can be part of an immaterial entity; only a specifically dependent continuant can be part of a specifically dependent continuant; only a generically dependent continuant can be part of a generically dependent continuant. (This list is not exhaustive.) A continuant cannot be part of an occurrent: use 'participates in'. An occurrent cannot be part of a continuant: use 'has participant'. A material entity cannot be part of an immaterial entity: use 'has location'. A specifically dependent continuant cannot be part of an independent continuant: use 'inheres in'. An independent continuant cannot be part of a specifically dependent continuant: use 'bearer of'. part_of part of http://www.obofoundry.org/ro/#OBO_REL:part_of has part my body has part my brain (continuant parthood, two material entities) my stomach has part my stomach cavity (continuant parthood, material entity has part immaterial entity) this year has part this day (occurrent parthood) a core relation that holds between a whole and its part Everything has itself as a part. Any part of any part of a thing is itself part of that thing. Two distinct things cannot have each other as a part. Occurrents are not subject to change and so parthood between occurrents holds for all the times that the part exists. Many continuants are subject to change, so parthood between continuants will only hold at certain times, but this is difficult to specify in OWL. See http://purl.obolibrary.org/obo/ro/docs/temporal-semantics/ Parthood requires the part and the whole to have compatible classes: only an occurrent have an occurrent as part; only a process can have a process as part; only a continuant can have a continuant as part; only an independent continuant can have an independent continuant as part; only a specifically dependent continuant can have a specifically dependent continuant as part; only a generically dependent continuant can have a generically dependent continuant as part. (This list is not exhaustive.) A continuant cannot have an occurrent as part: use 'participates in'. An occurrent cannot have a continuant as part: use 'has participant'. An immaterial entity cannot have a material entity as part: use 'location of'. An independent continuant cannot have a specifically dependent continuant as part: use 'bearer of'. A specifically dependent continuant cannot have an independent continuant as part: use 'inheres in'. has_part has part realized in this disease is realized in this disease course this fragility is realized in this shattering this investigator role is realized in this investigation is realized by realized_in [copied from inverse property 'realizes'] to say that b realizes c at t is to assert that there is some material entity d & b is a process which has participant d at t & c is a disposition or role of which d is bearer_of at t& the type instantiated by b is correlated with the type instantiated by c. (axiom label in BFO2 Reference: [059-003]) Paraphrase of elucidation: a relation between a realizable entity and a process, where there is some material entity that is bearer of the realizable entity and participates in the process, and the realizable entity comes to be realized in the course of the process realized in realizes this disease course realizes this disease this investigation realizes this investigator role this shattering realizes this fragility Paraphrase of elucidation: a relation between a process and a realizable entity, where there is some material entity that is bearer of the realizable entity and participates in the process, and the realizable entity comes to be realized in the course of the process to say that b realizes c at t is to assert that there is some material entity d & b is a process which has participant d at t & c is a disposition or role of which d is bearer_of at t& the type instantiated by b is correlated with the type instantiated by c. (axiom label in BFO2 Reference: [059-003]) Paraphrase of elucidation: a relation between a process and a realizable entity, where there is some material entity that is bearer of the realizable entity and participates in the process, and the realizable entity comes to be realized in the course of the process realizes is about A (currently) primitive relation that relates an information artifact to an entity. is about denotes A primitive, instance-level, relation obtaining between an information content entity and some portion of reality. Denotation is what happens when someone creates an information content entity E in order to specifically refer to something. The only relation between E and the thing is that E can be used to 'pick out' the thing. This relation connects those two together. Freedictionary.com sense 3: To signify directly; refer to specifically denotes denoted by inverse of the relation 'denotes' denoted by is_supported_by_data The relation between the conclusion "Gene tpbA is involved in EPS production" and the data items produced using two sets of organisms, one being a tpbA knockout, the other being tpbA wildtype tested in polysacharide production assays and analyzed using an ANOVA. The relation between a data item and a conclusion where the conclusion is the output of a data interpreting process and the data item is used as an input to that process OBI OBI Philly 2011 workshop is_supported_by_data has specified input see is_input_of example_of_usage The inverse property of is specified input of 8/17/09: specified inputs of one process are not necessarily specified inputs of a larger process that it is part of. This is in contrast to how 'has participant' works. PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Larry Hunter PERSON: Melanie Coutot has specified input is specified input of some Autologous EBV(Epstein-Barr virus)-transformed B-LCL (B lymphocyte cell line) is_input_for instance of Chromum Release Assay described at https://wiki.cbil.upenn.edu/obiwiki/index.php/Chromium_Release_assay A relation between a completely executed planned process and a continuant participating in that process that is not created during the process. The presence of the continuant during the process is explicitly specified in the plan specification which the process realizes the concretization of. Alan Ruttenberg PERSON:Bjoern Peters is specified input of has specified output The inverse property of is specified output of PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Larry Hunter PERSON: Melanie Courtot has specified output is specified output of A relation between a completely executed planned process and a continuant participating in that process. The presence of the continuant at the end of the process is explicitly specified in the objective specification which the process realizes the concretization of. Alan Ruttenberg PERSON:Bjoern Peters is specified output of achieves_planned_objective A cell sorting process achieves the objective specification 'material separation objective' This relation obtains between a planned process and a objective specification when the criteria specified in the objective specification are met at the end of the planned process. BP, AR, PPPB branch PPPB branch derived modified according to email thread from 1/23/09 in accordince with DT and PPPB branch achieves_planned_objective objective_achieved_by This relation obtains between an objective specification and a planned process when the criteria specified in the objective specification are met at the end of the planned process. OBI OBI objective_achieved_by has value specification A relation between an information content entity and a value specification that specifies its value. PERSON: James A. Overton OBI has value specification inheres in this fragility is a characteristic of this vase this red color is a characteristic of this apple a relation between a specifically dependent continuant (the characteristic) and any other entity (the bearer), in which the characteristic depends on the bearer for its existence. inheres_in Note that this relation was previously called "inheres in", but was changed to be called "characteristic of" because BFO2 uses "inheres in" in a more restricted fashion. This relation differs from BFO2:inheres_in in two respects: (1) it does not impose a range constraint, and thus it allows qualities of processes, as well as of information entities, whereas BFO2 restricts inheres_in to only apply to independent continuants (2) it is declared functional, i.e. something can only be a characteristic of one thing. characteristic of bearer of this apple is bearer of this red color this vase is bearer of this fragility Inverse of characteristic_of A bearer can have many dependents, and its dependents can exist for different periods of time, but none of its dependents can exist when the bearer does not exist. bearer_of is bearer of has characteristic participates in this blood clot participates in this blood coagulation this input material (or this output material) participates in this process this investigator participates in this investigation a relation between a continuant and a process, in which the continuant is somehow involved in the process participates_in participates in has participant this blood coagulation has participant this blood clot this investigation has participant this investigator this process has participant this input material (or this output material) a relation between a process and a continuant, in which the continuant is somehow involved in the process Has_participant is a primitive instance-level relation between a process, a continuant, and a time at which the continuant participates in some way in the process. The relation obtains, for example, when this particular process of oxygen exchange across this particular alveolar membrane has_participant this particular sample of hemoglobin at this particular time. has_participant http://www.obofoundry.org/ro/#OBO_REL:has_participant has participant A journal article is an information artifact that inheres in some number of printed journals. For each copy of the printed journal there is some quality that carries the journal article, such as a pattern of ink. The journal article (a generically dependent continuant) is concretized as the quality (a specifically dependent continuant), and both depend on that copy of the printed journal (an independent continuant). An investigator reads a protocol and forms a plan to carry out an assay. The plan is a realizable entity (a specifically dependent continuant) that concretizes the protocol (a generically dependent continuant), and both depend on the investigator (an independent continuant). The plan is then realized by the assay (a process). A relationship between a generically dependent continuant and a specifically dependent continuant or process, in which the generically dependent continuant depends on some independent continuant or process in virtue of the fact that the specifically dependent continuant or process also depends on that same independent continuant. A generically dependent continuant may be concretized as multiple specifically dependent continuants or processes. A relationship between a generically dependent continuant and a specifically dependent continuant, in which the generically dependent continuant depends on some independent continuant in virtue of the fact that the specifically dependent continuant also depends on that same independent continuant. A generically dependent continuant may be concretized as multiple specifically dependent continuants. is concretized as A journal article is an information artifact that inheres in some number of printed journals. For each copy of the printed journal there is some quality that carries the journal article, such as a pattern of ink. The quality (a specifically dependent continuant) concretizes the journal article (a generically dependent continuant), and both depend on that copy of the printed journal (an independent continuant). An investigator reads a protocol and forms a plan to carry out an assay. The plan is a realizable entity (a specifically dependent continuant) that concretizes the protocol (a generically dependent continuant), and both depend on the investigator (an independent continuant). The plan is then realized by the assay (a process). A relationship between a specifically dependent continuant and a generically dependent continuant, in which the generically dependent continuant depends on some independent continuant in virtue of the fact that the specifically dependent continuant also depends on that same independent continuant. Multiple specifically dependent continuants can concretize the same generically dependent continuant. A relationship between a specifically dependent continuant or process and a generically dependent continuant, in which the generically dependent continuant depends on some independent continuant in virtue of the fact that the specifically dependent continuant or process also depends on that same independent continuant. Multiple specifically dependent continuants or processes can concretize the same generically dependent continuant. concretizes function of this catalysis function is a function of this enzyme a relation between a function and an independent continuant (the bearer), in which the function specifically depends on the bearer for its existence A function inheres in its bearer at all times for which the function exists, however the function need not be realized at all the times that the function exists. function_of is function of This relation is modeled after the BFO relation of the same name which was in BFO2, but is used in a more restricted sense - specifically, we model this relation as functional (inherited from characteristic-of). Note that this relation is now removed from BFO2020. function of quality of this red color is a quality of this apple a relation between a quality and an independent continuant (the bearer), in which the quality specifically depends on the bearer for its existence A quality inheres in its bearer at all times for which the quality exists. is quality of quality_of This relation is modeled after the BFO relation of the same name which was in BFO2, but is used in a more restricted sense - specifically, we model this relation as functional (inherited from characteristic-of). Note that this relation is now removed from BFO2020. quality of role of this investigator role is a role of this person a relation between a role and an independent continuant (the bearer), in which the role specifically depends on the bearer for its existence A role inheres in its bearer at all times for which the role exists, however the role need not be realized at all the times that the role exists. is role of role_of This relation is modeled after the BFO relation of the same name which was in BFO2, but is used in a more restricted sense - specifically, we model this relation as functional (inherited from characteristic-of). Note that this relation is now removed from BFO2020. role of has function this enzyme has function this catalysis function (more colloquially: this enzyme has this catalysis function) a relation between an independent continuant (the bearer) and a function, in which the function specifically depends on the bearer for its existence A bearer can have many functions, and its functions can exist for different periods of time, but none of its functions can exist when the bearer does not exist. A function need not be realized at all the times that the function exists. has_function has function has quality this apple has quality this red color a relation between an independent continuant (the bearer) and a quality, in which the quality specifically depends on the bearer for its existence A bearer can have many qualities, and its qualities can exist for different periods of time, but none of its qualities can exist when the bearer does not exist. has_quality has quality has role this person has role this investigator role (more colloquially: this person has this role of investigator) a relation between an independent continuant (the bearer) and a role, in which the role specifically depends on the bearer for its existence A bearer can have many roles, and its roles can exist for different periods of time, but none of its roles can exist when the bearer does not exist. A role need not be realized at all the times that the role exists. has_role has role has disposition a relation between an independent continuant (the bearer) and a disposition, in which the disposition specifically depends on the bearer for its existence has disposition disposition of inverse of has disposition This relation is modeled after the BFO relation of the same name which was in BFO2, but is used in a more restricted sense - specifically, we model this relation as functional (inherited from characteristic-of). Note that this relation is now removed from BFO2020. disposition of derives from this cell derives from this parent cell (cell division) this nucleus derives from this parent nucleus (nuclear division) a relation between two distinct material entities, the new entity and the old entity, in which the new entity begins to exist when the old entity ceases to exist, and the new entity inherits the significant portion of the matter of the old entity This is a very general relation. More specific relations are preferred when applicable, such as 'directly develops from'. derives_from derives from this parent cell derives into this cell (cell division) this parent nucleus derives into this nucleus (nuclear division) a relation between two distinct material entities, the old entity and the new entity, in which the new entity begins to exist when the old entity ceases to exist, and the new entity inherits the significant portion of the matter of the old entity This is a very general relation. More specific relations are preferred when applicable, such as 'directly develops into'. To avoid making statements about a future that may not come to pass, it is often better to use the backward-looking 'derives from' rather than the forward-looking 'derives into'. derives_into derives into capable of A relation between a material entity (such as a cell) and a process, in which the material entity has the ability to carry out the process. A relation between a material entity (such as a cell) and a process, in which the material entity has the ability to carry out the process. capable of An organism that is a member of a population of organisms is member of is a mereological relation between a item and a collection. is member of member part of SIO member of has member has member is a mereological relation between a collection and an item. SIO has member An entity that exists in full at any time in which it exists at all, persists through time while maintaining its identity and has no temporal parts. continuant An entity that has temporal parts and that happens, unfolds or develops through time. occurrent b is an independent continuant = Def. b is a continuant which is such that there is no c and no t such that b s-depends_on c at t. (axiom label in BFO2 Reference: [017-002]) A continuant that is a bearer of quality and realizable entity entities, in which other entities inhere and which itself cannot inhere in anything. independent continuant p is a process = Def. p is an occurrent that has temporal proper parts and for some time t, p s-depends_on some material entity at t. (axiom label in BFO2 Reference: [083-003]) An occurrent that has temporal proper parts and for some time t, p s-depends_on some material entity at t. process disposition A specifically dependent continuant that inheres in continuant entities and are not exhibited in full at every time in which it inheres in an entity or group of entities. The exhibition or actualization of a realizable entity is a particular manifestation, functioning or process that occurs under certain circumstances. realizable entity quality b is a specifically dependent continuant = Def. b is a continuant & there is some independent continuant c which is not a spatial region and which is such that b s-depends_on c at every time t during the course of b’s existence. (axiom label in BFO2 Reference: [050-003]) A continuant that inheres in or is borne by other entities. Every instance of A requires some specific instance of B which must always be the same. specifically dependent continuant A realizable entity the manifestation of which brings about some result or end that is not essential to a continuant in virtue of the kind of thing that it is but that can be served or participated in by that kind of continuant in some kinds of natural, social or institutional contexts. role b is a generically dependent continuant = Def. b is a continuant that g-depends_on one or more other entities. (axiom label in BFO2 Reference: [074-001]) A continuant that is dependent on one or other independent continuant bearers. For every instance of A requires some instance of (an independent continuant type) B but which instance of B serves can change from time to time. generically dependent continuant function material entity An independent continuant that is spatially extended whose identity is independent of that of other entities and can be maintained through time. Elucidation: An independent continuant that is spatially extended whose identity is independent of that of other entities and can be maintained through time. material entity immaterial entity peptide Amide derived from two or more amino carboxylic acid molecules (the same or different) by formation of a covalent bond from the carbonyl carbon of one to the nitrogen atom of another with formal loss of water. The term is usually applied to structures formed from α-amino acids, but it includes those derived from any amino carboxylic acid. X = OH, OR, NH2, NHR, etc. peptide proton Nuclear particle of charge number +1, spin 1/2 and rest mass of 1.007276470(12) u. Nuclear particle of charge number +1, spin ½ and rest mass of 1.007276470(12) u. proton A nucleus is the positively charged central portion of an atom, excluding the orbital electrons. Some people may be uncomfortable calling every proton an atomic nucleus This is equivalent to CHEBI:33252 atomic nucleus nucleic acid A macromolecule made up of nucleotide units and hydrolysable into certain pyrimidine or purine bases (usually adenine, cytosine, guanine, thymine, uracil), <small>D</small>-ribose or 2-deoxy-<small>D</small>-ribose and phosphoric acid. nucleic acid ribonucleic acid High molecular weight, linear polymers, composed of nucleotides containing ribose and linked by phosphodiester bonds; RNA is central to the synthesis of proteins. ribonucleic acid macromolecule A macromolecule is a molecule of high relative molecular mass, the structure of which essentially comprises the multiple repetition of units derived, actually or conceptually, from molecules of low relative molecular mass. polymer macromolecule A particle smaller than an atom. subatomic particle cell line cell A cultured cell that is part of a cell line - a stable and homogeneous population of cells with a common biological origin and propagation history in culture A cultured cell that is part of a cell line - a stable and homogeneous population of cells with a common biological origin and propagation history in culture 'derives from' is transitive, so even cell line cells created through modification of an existing cell line cell have derived_from some initial primary cultured cell that existed at some point in time. cell line cell cell PMID:18089833.Cancer Res. 2007 Dec 15;67(24):12018-25. "...Epithelial cells were harvested from histologically confirmed adenocarcinomas .." A material entity of anatomical origin (part of or deriving from an organism) that has as its parts a maximally connected cell compartment surrounded by a plasma membrane. CL and GO definitions of cell differ based on inclusive or exclusive of cell wall, etc. We struggled with this definition. We are worried about circularity. We also considered requiring the capability of metabolism. cell primary cultured cell A cultured cell that is freshly isolated from a organismal source, or derives in culture from such a cell prior to the culture being passaged. primary cultured cell cultured cell A cell in vitro that is or has been maintained or propagated as part of a cell culture. cultured cell experimentally modified cell in vitro A cell in vitro that has undergone physical changes as a consequence of a deliberate and specific experimental procedure. experimentally modified cell in vitro A material entity consisting of exactly one atomic nucleus and the electron(s) orbiting it. This atom is closely related to ChEBI's atom, but not exactly equivalent to. atom A material entity that consists of two or more atoms that are all connected via covalent bonds such that any atom can be transitively connected with any other atom. This molecular entity is different than ChEBI's 'molecular entity'. We would like to have cardinality restrictions on the logic, but there are some technical limitations. molecule A part of a multicellular organism that is a collection of cell components that are not all contained in one cell. gross anatomical part A material entity that is a maximal functionally integrated unit that develops from a program encoded in a genome 'Maximal functionally integrated unit' is intended to express unity, which Barry considers synonymous with BFO 'object'. Includes virus - we will later have a class for cellular organisms. organism A material entity processed by human activity with an intent to produce it. In the COB 2024 workshop there was much disagreement about this label. processed material entity completely executed planned process A complex of two or more molecules that are not covalently bound. complex of molecules A process that is initiated by an agent who intends to carry out a plan to achieve an objective through one or more actions as described in a plan specification. planned process A completely executed planned process that intends to output material entities from input material entities material processing characteristic A processed material entity which is designed to be capable of a process. device environmental material A material entity which other material entities in an environmental system are primarily or partially composed of. environmental material molecular_function A molecular process that can be carried out by the action of a single macromolecular machine, usually via direct physical interactions with other molecular entities. Function in this sense denotes an action, or activity, that a gene product (or a complex) performs. This is the same as GO molecular function gene product or complex activity molecular_function catalytic activity Catalysis of a biochemical reaction at physiological temperatures. In biologically catalyzed reactions, the reactants are known as substrates, and the catalysts are naturally occurring macromolecular substances known as enzymes. Enzymes possess specific binding sites for substrates, and are usually composed wholly or largely of protein, but RNA that has catalytic activity (ribozyme) is often also regarded as enzymatic. catalytic activity RNA-directed DNA polymerase activity Catalysis of the reaction: a 2'-deoxyribonucleoside 5'-triphosphate + DNA(n) = diphosphate + DNA(n+1); RNA-template-directed extension of the 3'-end of a DNA strand by one deoxynucleotide at a time. RNA-directed DNA polymerase activity cellular_component A location, relative to cellular compartments and structures, occupied by a macromolecular machine. There are three types of cellular components described in the gene ontology: (1) the cellular anatomical entity where a gene product carries out a molecular function (e.g., plasma membrane, cytoskeleton) or membrane-enclosed compartments (e.g., mitochondrion); (2) virion components, where viral proteins act, and (3) the stable macromolecular complexes of which gene product are parts (e.g., the clathrin complex). cellular_component biological_process A biological process is the execution of a genetically-encoded biological module or program. It consists of all the steps required to achieve the specific biological objective of the module. A biological process is accomplished by a particular set of molecular functions carried out by specific gene products (or macromolecular complexes), often in a highly regulated manner and in a particular temporal sequence. biological process biological_process protein-containing complex A ribosome is a protein complex. A stable assembly of two or more macromolecules, i.e. proteins, nucleic acids, carbohydrates or lipids, in which at least one component is a protein and the constituent parts function together. This is not covalently bonded, which conflicts with changes to the parent definition. protein complex protein-containing complex Any constituent part of a virion, a complete fully infectious extracellular virus particle. virion component A part of a cellular organism that is either an immaterial entity or a material entity with granularity above the level of a protein complex but below that of an anatomical system. Or, a substance produced by a cellular organism with granularity above the level of a protein complex. Components are larger than individual macromolecular entities. It is tricky to define distinction between 'cell component' and 'macromolecular entity', e.g. ribosome. We would like to exclude most protein complexes. Overlaps with some cellular components from GO cellular anatomical entity measurement unit label A measurement unit label is as a label that is part of a scalar measurement datum and denotes a unit of measure. measurement unit label objective specification A directive information entity that describes an intended process endpoint. When part of a plan specification the concretization is realized in a planned process in which the bearer tries to effect the world so that the process endpoint is achieved. objective specification A directive information entity that describes an action the bearer will take. action specification datum label A label is a symbol that is part of some other datum and is used to either partially define the denotation of that datum or to provide a means for identifying the datum as a member of the set of data with the same label datum label data item An information content entity that is intended to be a truthful statement about something (modulo, e.g., measurement precision or other systematic errors) and is constructed/acquired by a method which reliably tends to produce (approximately) truthful statements. data item symbol An information content entity that is a mark(s) or character(s) used as a conventional representation of another entity. symbol information content entity A generically dependent continuant that is about some thing. Pier: 'data, information or knowledge'. OR 'representation' information content entity directive information entity An information content entity whose concretizations indicate to their bearer how to realize them in a process. directive information entity algorithm A plan specification which describes the inputs and output of mathematical functions as well as workflow of execution for achieving an predefined objective. Algorithms are realized usually by means of implementation as computer programs for execution by automata. algorithm curation status specification The curation status of the term. The allowed values come from an enumerated list of predefined terms. See the specification of these instances for more detailed definitions of each enumerated value. Better to represent curation as a process with parts and then relate labels to that process (in IAO meeting) PERSON:Bill Bug GROUP:OBI:<http://purl.obolibrary.org/obo/obi> OBI_0000266 curation status specification data set A data item that is an aggregate of other data items of the same type that have something in common. Averages and distributions can be determined for data sets. data set data about an ontology part Data about an ontology part is a data item about a part of an ontology, for example a term Person:Alan Ruttenberg data about an ontology part plan specification A directive information entity with action specifications and objective specifications as parts, and that may be concretized as a realizable entity that, if realized, is realized in a process in which the bearer tries to achieve the objectives by taking the actions specified. plan specification measurement datum A measurement datum is an information content entity that is a recording of the output of a measurement such as produced by a device. measurement datum material information bearer A material entity in which a concretization of an information content entity inheres. material information bearer obsolescence reason specification The reason for which a term has been deprecated. The allowed values come from an enumerated list of predefined terms. See the specification of these instances for more detailed definitions of each enumerated value. The creation of this class has been inspired in part by Werner Ceusters' paper, Applying evolutionary terminology auditing to the Gene Ontology. PERSON: Alan Ruttenberg PERSON: Melanie Courtot obsolescence reason specification document A collection of information content entities intended to be understood together as a whole document denotator type The Basic Formal Ontology ontology makes a distinction between Universals and defined classes, where the formal are "natural kinds" and the latter arbitrary collections of entities. A denotator type indicates how a term should be interpreted from an ontological perspective. Alan Ruttenberg Barry Smith, Werner Ceusters denotator type documenting A planned process in which a document is created or added to by including the specified input in it. documenting centrally registered identifier symbol A symbol that is part of a CRID and that is sufficient to look up a record from the CRID's registry. centrally registered identifier symbol centrally registered identifier registry A code set of CRID records, each consisting of a CRID symbol and additional information which was recorded in the code set through an assigning a centrally registered identifier process. centrally registered identifier registry Euteleostomi bony vertebrates Euteleostomi Eukaryota eucaryotes eukaryotes Eukaryota Euarchontoglires Euarchontoglires Tetrapoda tetrapods Tetrapoda Amniota amniotes Amniota Opisthokonta Opisthokonta Metazoa metazoans multicellular animals Metazoa Bilateria Bilateria Mammalia mammals Mammalia Vertebrata <vertebrates> Vertebrata vertebrates Vertebrata <vertebrates> Homo sapiens human human being Homo sapiens investigation Lung cancer investigation using expression profiling, a stem cell transplant investigation, biobanking is not an investigation, though it may be part of an investigation a planned process that consists of parts: planning, study design execution, documentation and which produce conclusion(s). Bjoern Peters OBI branch derived Could add specific objective specification Following OBI call November 2012,26th: it was decided there was no need for adding achieves objective of drawing conclusion as existing relations were providing equivalent ability. this note closes the issue and validates the class definition to be part of the OBI core editor = PRS study investigation evaluant role When a specimen of blood is assayed for glucose concentration, the blood has the evaluant role. When measuring the mass of a mouse, the evaluant is the mouse. When measuring the time of DNA replication, the evaluant is the DNA. When measuring the intensity of light on a surface, the evaluant is the light source. a role that inheres in a material entity that is realized in an assay in which data is generated about the bearer of the evaluant role Role call - 17nov-08: JF and MC think an evaluant role is always specified input of a process. Even in the case where we have an assay taking blood as evaluant and outputting blood, the blood is not the specified output at the end of the assay (the concentration of glucose in the blood is) examples of features that could be described in an evaluant: quality.... e.g. "contains 10 pg/ml IL2", or "no glucose detected") GROUP: Role Branch OBI Feb 10, 2009. changes after discussion at OBI Consortium Workshop Feb 2-6, 2009. accepted as core term. evaluant role assay Assay the wavelength of light emitted by excited Neon atoms. Count of geese flying over a house. A planned process that has the objective to produce information about a material entity (the evaluant) by examining it. 12/3/12: BP: the reference to the 'physical examination' is included to point out that a prediction is not an assay, as that does not require physical examiniation. Discussion on OBI call 2023-05-01 resulted in an agreement to revise the textual definition of 'assay'. https://github.com/obi-ontology/obi/issues/1683. PlanAndPlannedProcess Branch measuring scientific observation OBI branch derived study assay any method assay reagent role Buffer, dye, a catalyst, a solvating agent. A role inhering in a biological or chemical entity that is intended to be applied in a scientific technique to participate (or have molecular components that participate) in a chemical reaction that facilitates the generation of data about some entity distinct from the bearer, or the generation of some specified material output distinct from the bearer. PERSON:Matthew Brush reagent PERSON:Matthew Brush Feb 10, 2009. changes after discussion at OBI Consortium Workshop Feb 2-6, 2009. accepted as core term. May 28 2013. Updated definition taken from ReO based on discussions initiated in Philly 2011 workshop. Former defnition described a narrower view of reagents in chemistry that restricts bearers of the role to be chemical entities ("a role played by a molecular entity used to produce a chemical reaction to detect, measure, or produce other substances"). Updated definition allows for broader view of reagents in the domain of biomedical research to include larger materials that have parts that participate chemically in a molecular reaction or interaction. (copied from ReO) Reagents are distinguished from instruments or devices that also participate in scientific techniques by the fact that reagents are chemical or biological in nature and necessarily participate in or have parts that participate in some chemical interaction or reaction during their intended participation in some technique. By contrast, instruments do not participate in a chemical reaction/interaction during the technique. Reagents are distinguished from study subjects/evaluants in that study subjects and evaluants are that about which conclusions are drawn and knowledge is sought in an investigation - while reagents, by definition, are not. It should be noted, however, that reagent and study subject/evaluant roles can be borne by instances of the same type of material entity - but a given instance will realize only one of these roles in the execution of a given assay or technique. For example, taq polymerase can bear a reagent role or an evaluant role. In a DNA sequencing assay aimed at generating sequence data about some plasmid, the reagent role of the taq polymerase is realized. In an assay to evaluate the quality of the taq polymerase itself, the evaluant/study subject role of the taq is realized, but not the reagent role since the taq is the subject about which data is generated. In regard to the statement that reagents are 'distinct' from the specified outputs of a technique, note that a reagent may be incorporated into a material output of a technique, as long as the IDENTITY of this output is distinct from that of the bearer of the reagent role. For example, dNTPs input into a PCR are reagents that become part of the material output of this technique, but this output has a new identity (ie that of a 'nucleic acid molecule') that is distinct from the identity of the dNTPs that comprise it. Similarly, a biotin molecule input into a cell labeling technique are reagents that become part of the specified output, but the identity of the output is that of some modified cell specimen which shares identity with the input unmodified cell specimen, and not with the biotin label. Thus, we see that an important criteria of 'reagent-ness' is that it is a facilitator, and not the primary focus of an investigation or material processing technique (ie not the specified subject/evaluant about which knowledge is sought, or the specified output material of the technique). reagent role study subject role Human subjects in a clinical trial, rats in a toxicogenomics study, tissue cutlures subjected to drug tests, fish observed in an ecotoxicology study. Parasite example: people are infected with a parasite which is then extracted; the particpant under investigation could be the parasite, the people, or a population of which the people are members, depending on the nature of the study. Lake example: a lake could realize this role in an investigation that assays pollution levels in samples of water taken from the lake. A role that is realized through the execution of a study design in which the bearer of the role participates and in which data about that bearer is collected. A participant can realize both "specimen role" and "participant under investigation role" at the same time. However "participant under investigation role" is distinct from "specimen role", since a specimen could somehow be involved in an investigation without being the thing that is under investigation. GROUP: Role Branch OBI Following OBI call November 2012,26th: 1. it was decided there was no need for moving the children class and making them siblings of study subject role. 2. it also settles the disambiguation about 'study subject'. This is about the individual participating in the investigation/study, Not the 'topic' (as in 'toxicity study') of the investigation/study This note closes the issue and validates the class definition to be part of the OBI core editor = PRS participant under investigation role specimen role liver section; a portion of a culture of cells; a nemotode or other animal once no longer a subject (generally killed); portion of blood from a patient. A role borne by a material entity that is obtained during a specimen collection process and that can be realized by performing measurements or observations on the specimen. 22Jun09. The definition includes whole organisms, and can include a human. The link between specimen role and study subject role has been removed. A specimen taken as part of a case study is not considered to be a population representative, while a specimen taken as representing a population, e.g. person taken from a cohort, blood specimen taken from an animal) would be considered a population representative and would also bear material sample role. Note: definition is in specimen creation objective which is defined as an objective to obtain and store a material entity for potential use as an input during an investigation. blood taken from animal: animal continues in study, whereas blood has role specimen. something taken from study subject, leaves the study and becomes the specimen. parasite example - when parasite in people we study people, people are subjects and parasites are specimen - when parasite extracted, they become subject in the following study specimen can later be subject. GROUP: Role Branch OBI specimen role population PMID12564891. Environ Sci Technol. 2003 Jan 15;37(2):223-8. Effects of historic PCB exposures on the reproductive success of the Hudson River striped bass population. a population is a collection of individuals from the same taxonomic class living, counted or sampled at a particular site or in a particular area 1/28/2013, BP, on the call it was raised that we may want to switch to an external ontology for all populatin terms: http://code.google.com/p/popcomm-ontology/ PERSON: Philippe Rocca-Serra adapted from Oxford English Dictionnary rem1: collection somehow always involve a selection process population investigation agent role The person perform microarray experiments and submit microarray results (including raw data, processed data) with experiment description to ArrayExpress. A role borne by an entity and that is realized in a process that is part of an investigation in which an objective is achieved. These processes include, among others: planning, overseeing, funding, reviewing. Implementing a study means carrying out or performing the study and providing reagents or other materials used in the study and other tasks without which the study would not happen. Philly2013: Historically, this role would have been borne only by humans or organizations. However, we now also want to enable representing investigations run by robot scientists such as ADAM (King et al, Science, 2009) GROUP: Role Branch investigator OBI Feb 10, 2009. changes after discussion at OBI Consortium Workshop Feb 2-6, 2009. accepted as core term. study person role Philly2013: Historically, this role would have been borne only by humans or organizations. However, we now also want to enable investigations run by robot scientists such as ADAM (King et al, Science, 2009) investigation agent role organization PMID: 16353909.AAPS J. 2005 Sep 22;7(2):E274-80. Review. The joint food and agriculture organization of the United Nations/World Health Organization Expert Committee on Food Additives and its role in the evaluation of the safety of veterinary drug residues in foods. An entity that can bear roles, has members, and has a set of organization rules. Members of organizations are either organizations themselves or individual people. Members can bear specific organization member roles that are determined in the organization rules. The organization rules also determine how decisions are made on behalf of the organization by the organization members. BP: The definition summarizes long email discussions on the OBI developer, roles, biomaterial and denrie branches. It leaves open if an organization is a material entity or a dependent continuant, as no consensus was reached on that. The current placement as material is therefore temporary, in order to move forward with development. Here is the entire email summary, on which the definition is based: 1) there are organization_member_roles (president, treasurer, branch editor), with individual persons as bearers 2) there are organization_roles (employer, owner, vendor, patent holder) 3) an organization has a charter / rules / bylaws, which specify what roles there are, how they should be realized, and how to modify the charter/rules/bylaws themselves. It is debatable what the organization itself is (some kind of dependent continuant or an aggregate of people). This also determines who/what the bearer of organization_roles' are. My personal favorite is still to define organization as a kind of 'legal entity', but thinking it through leads to all kinds of questions that are clearly outside the scope of OBI. Interestingly enough, it does not seem to matter much where we place organization itself, as long as we can subclass it (University, Corporation, Government Agency, Hospital), instantiate it (Affymetrix, NCBI, NIH, ISO, W3C, University of Oklahoma), and have it play roles. This leads to my proposal: We define organization through the statements 1 - 3 above, but without an 'is a' statement for now. We can leave it in its current place in the is_a hierarchy (material entity) or move it up to 'continuant'. We leave further clarifications to BFO, and close this issue for now. PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Philippe Rocca-Serra PERSON: Susanna Sansone GROUP: OBI organization plan The plan of researcher X to perform an experiment according to a protocol. A plan is a realizable entity that is the inheres in a bearer who is committed to realizing it as a completely executed planned process. This class is included to make clear how the plan specification, the plan, and the planned process relate. OBI will however only subclass and work under the 'plan specification', and 'planned process' class, as we want to avoid to get deep into discussions of 'intend' etc. AR, BP, JM, MC, PRS branch derived plan protocol PCR protocol, has objective specification, amplify DNA fragment of interest, and has action specification describes the amounts of experimental reagents used (e..g. buffers, dNTPS, enzyme), and the temperature and cycle time settings for running the PCR. A plan specification which has sufficient level of detail and quantitative information to communicate it between investigation agents, so that different investigation agents will reliably be able to independently reproduce the process. PlanAndPlannedProcess Branch OBI branch derived + wikipedia (http://en.wikipedia.org/wiki/Protocol_%28natural_sciences%29) study protocol protocol interpreting data Concluding that a gene is upregulated in a tissue sample based on the band intensity in a western blot. Concluding that a patient has a infection based on measurement of an elevated body temperature and reported headache. Concluding that there were problems in an investigation because data from PCR and microarray are conflicting. Concluding that 'defects in gene XYZ cause cancer due to improper DNA repair' based on data from experiments in that study that gene XYZ is involved in DNA repair, and the conclusion of a previous study that cancer patients have an increased number of mutations in this gene. A planned process in which data gathered in an investigation is evaluated in the context of existing knowledge with the objective to generate more general conclusions or to conclude that the data does not allow one to draw general conclusion PERSON: Bjoern Peters PERSON: Jennifer Fostel Bjoern Peters drawing a conclusion based on data planning The process of a scientist thinking about and deciding what reagents to use as part of a protocol for an experiment. Note that the scientist could be human or a "robot scientist" executing software. a process of creating or modifying a plan specification 7/18/2011 BP: planning used to itself be a planned process. Barry Smith pointed out that this would lead to an infinite regression, as there would have to be a plan to conduct a planning process, which in itself would be the result of planning etc. Therefore, the restrictions on 'planning' were loosened to allow for informal processes that result in an 'ad hoc plan '. This required changing from 'has_specified_output some plan specifiction' to 'has_participant some plan specification'. Bjoern Peters Bjoern Peters Plans and Planned Processes Branch planning reverse transcriptase enzyme and has_function some GO:0003964 (RNA-directed DNA polymerase activity) person:Melanie Courtot group:OBI reverse transcriptase enzyme (protein or rna) or has_part (protein or rna) and has_function some GO:0003824 (catalytic activity) MC: known issue: enzyme doesn't classify under material entity for now as it isn't stated that anything that has_part some material entity is a material entity. If we add as equivalent classes to material entity has_part some material entity and part_of some material entity (each one in his own necessary and sufficient block) Pellet in P3 doesn't classify any more. person: Melanie Courtot GROUP:OBI enzyme analyte measurement objective The objective to measure the concentration of glucose in a blood sample an assay objective to determine the presence or concentration of an analyte in the evaluant PERSON: Bjoern Peters PPPB branch analyte measurement objective assay objective the objective to determine the weight of a mouse. an objective specification to determine a specified type of information about an evaluated entity (the material entity bearing evaluant role) PPPB branch PPPB branch assay objective analyte assay example of usage: In lab test for blood glucose, the test is the assay, the blood bears evaluant_role and glucose bears the analyte role. The evaluant is considered an input to the assay and the information entity that records the measurement of glucose concentration the output An assay with the objective to capture information about the presence, concentration, or amount of an analyte in an evaluant. Alan Ruttenberg Bjoern Peters Helen Parkinson Philippe Rocca-Serra Alan Ruttenberg Bjoern Peters Helen Parkinson OBI Planned process branch Philippe Rocca-Serra analyte assay measure function A glucometer measures blood glucose concentration, the glucometer has a measure function. Measure function is a function that is borne by a processed material and realized in a process in which information about some entity is expressed relative to some reference. PERSON: Daniel Schober PERSON: Helen Parkinson PERSON: Melanie Courtot PERSON:Frank Gibson measure function study design execution injecting a mouse with PBS solution, weighing it, and recording the weight according to a study design. a planned process that carries out a study design removed axiom has_part some (assay or 'data transformation') per discussion on protocol application mailing list to improve reasoner performance. The axiom is still desired. branch derived 6/11/9: edited at workshop. Used to be: study design execution is a process with the objective to generate data according to a concretized study design. The execution of a study design is part of an investigation, and minimally consists of an assay or data transformation. study design execution specimen collection process drawing blood from a patient for analysis, collecting a piece of a plant for depositing in a herbarium, buying meat from a butcher in order to measure its protein content in an investigation, collecting a stone from a site A planned process with the objective to obtain a material entity for potential use as an input upon which measurements or observations are performed. Definition updated following discussion on 2024-10-07 OBI dev call. Note: definition is in specimen creation objective which is defined as an objective to obtain and store a material entity for potential use as an input during an investigation. Philly2013: A specimen collection can have as part a material entity acquisition, such as ordering from a bank. The distinction is that specimen collection necessarily involves the creation of a specimen role. However ordering cell lines cells from ATCC for use in an investigation is NOT a specimen collection, because the cell lines already have a specimen role. Philly2013: The specimen_role for the specimen is created during the specimen collection process. label changed to 'specimen collection process' on 10/27/2014, details see tracker: http://sourceforge.net/p/obi/obi-terms/716/ Bjoern Peters specimen collection 5/31/2012: This process is not necessarily an acquisition, as specimens may be collected from materials already in posession 6/9/09: used at workshop specimen collection process specimen collection objective The objective to collect bits of excrement in the rainforest. The objective to obtain a blood sample from a patient. A objective specification that is fulfilled by obtaining a material entity for potential use as an input upon which measurements or observations are performed. OBI recommends against subclassing this term in order to avoid further parallel hierarchies between this term and specimen collection process. Bjoern Peters Bjoern Peters specimen collection objective independent variable specification In a study in which gene expression is measured in patients between 8 month to 4 years old that have mild or severe malaria and in which the hypothesis is that gene expression in that age group is a function of disease status, disease status is the independent variable. a directive information entity that is part of a study design. Independent variables are entities whose values are selected to determine its relationship to an observed phenomenon (the dependent variable). In such an experiment, an attempt is made to find evidence that the values of the independent variable determine the values of the dependent variable (that which is being measured). The independent variable can be changed as required, and its values do not represent a problem requiring explanation in an analysis, but are taken simply as given. The dependent variable on the other hand, usually cannot be directly controlled 2/2/2009 Original definition - In the design of experiments, independent variables are those whose values are controlled or selected by the person experimenting (experimenter) to determine its relationship to an observed phenomenon (the dependent variable). In such an experiment, an attempt is made to find evidence that the values of the independent variable determine the values of the dependent variable (that which is being measured). The independent variable can be changed as required, and its values do not represent a problem requiring explanation in an analysis, but are taken simply as given. The dependent variable on the other hand, usually cannot be directly controlled. In the Philly 2013 workshop the label was chosen to distinguish it from "dependent variable" as used in statistical modelling. See: http://en.wikipedia.org/wiki/Statistical_modeling PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Chris Stoeckert experimental factor independent variable Web: http://en.wikipedia.org/wiki/Dependent_and_independent_variables 2009-03-16: work has been done on this term during during the OBI workshop winter 2009 and the current definition was considered acceptable for use in OBI. If there is a need to modify thisdefinition please notify OBI. study factor study design independent variable dependent variable specification In a study in which gene expression is measured in patients between 8 month to 4 years old that have mild or severe malaria and in which the hypothesis is that gene expression in that age group is a function of disease status, the gene expression is the dependent variable. dependent variable specification is part of a study design. The dependent variable is the event studied and expected to change when the independent variable varies. 2/2/2009 In the design of experiments, independent variables are those whose values are controlled or selected by the person experimenting (experimenter) to determine its relationship to an observed phenomenon (the dependent variable). In such an experiment, an attempt is made to find evidence that the values of the independent variable determine the values of the dependent variable (that which is being measured). The independent variable can be changed as required, and its values do not represent a problem requiring explanation in an analysis, but are taken simply as given. The dependent variable on the other hand, usually cannot be directly controlled. In the Philly 2013 workshop the label was chosen to distinguish it from "dependent variable" as used in statistical modelling. See: http://en.wikipedia.org/wiki/Statistical_modeling PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Chris Stoeckert dependent variable WEB: http://en.wikipedia.org/wiki/Dependent_and_independent_variables 2009-03-16: work has been done on this term during during the OBI workshop winter 2009 and the current definition was considered acceptable for use in OBI. If there is a need to modify thisdefinition please notify OBI. study design dependent variable controlled variable specification In a study in which gene expression is measured in patients between 8 month to 4 years old that have mild or severe malaria and in which the hypothesis is that gene expression in that age group is a function of disease status, age is a controlled variable. Controlled variable specification is a part of a study design. They are the entities that could vary, but are kept constant to prevent their influence on the effect of the independent variable on the dependent. 2/2/2009 Original definition: Controlled variables are also important to identify in experiments. They are the variables that are kept constant to prevent their influence on the effect of the independent variable on the dependent. Every experiment has a controlling variable, and it is necessary to not change it, or the results of the experiment won't be valid In the Philly 2013 workshop the label was chosen to distinguish it from "controlled variable" as used in statistical modelling PERSON: Alan Ruttenberg PERSON: Bjoern Peters PERSON: Chris Stoeckert controlled variable WEB: http://en.wikipedia.org/wiki/Control_variable 2009-03-16: work has been done on this term during during the OBI workshop winter 2009 and the current definition was considered acceptable for use in OBI. If there is a need to modify thisdefinition please notify OBI. study design controlled variable informed consent process A planned process with the objective to inform a person or their legal representative of legally and ethically relevant facts about a process that the person in question is asked to participate in, and which results in a documented decision as to whether the person in question will participate. 09/28/2009 Alan Ruttenberg: This is made a subclass of the higher level processual entity in BFO because I don't want to take a stand on whether it is a process aggregate. Analogous to the situation with Material entity. Person:Alan Ruttenberg http://clinicaltrials.gov/ct2/info/glossary#informed 2009/09/28 Alan Ruttenberg. Fucoidan-use-case informed consent process measurement device A ruler, a microarray scanner, a Geiger counter. A device in which a measure function inheres. GROUP:OBI Philly workshop OBI measurement device processed specimen A specimen that has been intentionally physically modified. A tissue sample that has been sliced and stained for a histology study. Bjoern Peters Bjoern Peters processed specimen cell specimen A specimen primarily composed of a cell or cells collected from a multicellular organism or a cell culture. Discussed on obi call Jan 23, 2017. To improve cell specimen that include single cell specimen. Details see tracker: https://sourceforge.net/p/obi/obi-terms/828 PERSON: Chris Stoeckert, Jie Zheng, Alexander Diehl MO_612 cell cell specimen specimen from organism A specimen that derives from an anatomical part or substance arising from an organism. Examples of tissue specimen include tissue, organ, physiological system, blood, or body location (arm). PERSON: Chris Stoeckert, Jie Zheng tissue specimen MO_954 organism_part specimen from organism selection criterion rats should be aged between 6 and 8 weeks and weight between 180-250grams A directive information entity which defines and states a principle of standard by which selection process may take place. Person: Philippe Rocca-Serra selection rule OBI discussion summarized under the following tracker item : http://sourceforge.net/p/obi/obi-terms/678/ selection criterion secondary cultured cell A cultured cell that has been passaged or derives from a cell that has been passaged in culture. The term 'secondary cell culture' is generally used in biological texts/protocols to refer to any culture following an initial passage. We include it here because there are often a number of passages between a primary culture and the establishment of a stable, homogenous cell line. Such cultures are considered to be 'secondary cultures' but not 'cell lines' during this intermediate passaging/selection period between their derivation from a 'primary cell culture' and derivation into a 'cell line', which is a more specific type of secondary culture. Person: Matthew Brush PERSON: Matthew Brush A secondary cultured cell has been passaged in culture or is a descendant of such a cell that is derived through propagation in culture. secondary cultured cell reagent A biological or chemical entity that bears a reagent role in virtue of it being intended for application in a scientific technique to participate in (or have molecular parts that participate in) a chemical reaction that facilitates the generation of data about some distinct entity, or the generation of some distinct material specified output. 2013-6-5 MHB: Clarifications regarding the distinction between reagetns and devices were made at the May 2013 Philly Workshop. Reagents are distinguished from devices that also participate in scientific techniques by the fact that reagents are chemical or biological in nature and necessarily participate in some chemical interaction or reaction during the realization of their experimental role. By contrast, devices do not participate in such chemical reactions/interactions. Note that there are cases where devices use reagent components during their operation, where the reagent-device distinction is less clear. For examples, see editor note on OBI:device. PERSON:Matthew Brush PERSON:Matthew Brush (copied from ReO) Reagents are distinguished from devices/instruments that also serve as facilitators in scientific techniques by the fact that reagents are chemical or biological in nature and necessarily participate in or have parts that participate in some chemical interaction or reaction during their intended participation in some technique. By contrast, devices do not participate in a chemical reaction/interaction during the technique. Reagents are distinguished from study subjects/evaluants in that study subjects and evaluants are that about which conclusions are drawn and knowledge is sought in an investigation - while reagents, by definition, are not. It should be noted, however, that reagent and study subject/evaluant roles can be borne by instances of the same type of material entity - but a given instance can only realize one of these roles in the execution of a given assay. For example, taq polymerase can bear a reagent role or an evaluant role. In a DNA sequencing assay aimed at generating sequence data about some plasmid, the reagent role of the taq polymerase is realized. In an assay to evaluate the quality of the taq polymerase itself, the evaluant/study subject role of the taq is realized, but not the reagent role since the taq is the subject about which data is generated. In regard to the statement that reagents are 'distinct' from the specified outputs of a technique: note that a reagent may be incorporated into a material output of a technique, as long as the IDENTITY of this output is distinct from that of the bearer of the reagent role. For example, dNTPs input into a PCR are reagents that become part of the material output of this technique, but this output has a new identity (ie that of a 'nucleic acid molecule') that is distinct from the identity of the dNTPs that comprise it. Similarly, a biotin molecule input into a cell labeling technique are reagents that become part of the specified output, but the identity of the output is that of some modified cell specimen which shares identity with the input unmodified cell specimen, and not with the biotin label. Thus, we see that an important criteria of 'reagent-ness' is that it is a facilitator, and not the primary focus of an investigation or material processing technique (ie not the specified subject/evaluant about which knowledge is sought, or the specified output material of the technique). reagent testable hypothesis that fucoidan has a small statistically significant effect on AT3 level but no useful clinical effect as in-vivo anticoagulant, a paraphrase of part of the last paragraph of the discussion section of the paper 'Pilot clinical study to evaluate the anticoagulant activity of fucoidan', by Lowenthal et. al.PMID:19696660 An information content entity that expresses an assertion that is intended to be tested. In the Philly 2013 workshop, we recognized the limitations of "hypothesis textual entity", and we introduced this as more general. The need for the 'textual entity' term going forward is up for future debate. Group:2013 Philly Workshop group hypothesis Group:2013 Philly Workshop group testable hypothesis conclusion based on data The conclusion that a gene is upregulated in a tissue sample based on the band intensity in a western blot. The conclusion that a patient has a infection based on measurement of an elevated body temperature and reported headache. The conclusion that there were problems in an investigation because data from PCR and microarray are conflicting. The following are NOT conclusions based on data: data themselves; results from pure mathematics, e.g. "13 is prime". An information content entity that is inferred from data. In the Philly 2013 workshop, we recognized the limitations of "conclusion textual entity", and we introduced this as more general. The need for the 'textual entity' term going forward is up for future debate. Group:2013 Philly Workshop group Group:2013 Philly Workshop group conclusion based on data selection PMID: 24023800. In this study, a set of eleven genes (VATP16, 60 S, UQCC, SMD3, EF1α, UBQ, SAND, GAPDH, ACT, PsaB, PTB2) was evaluated to identify reference genes during the first hours of interaction (6, 12, 18 and 24 hpi) between two V. vinifera genotypes and P. viticola. Two analyses were used for the selection of reference genes: direct comparison of susceptible, Trincadeira, and resistant, Regent, V. vinifera cultivars at 0 h, 6, 12, 18 and 24 hours post inoculation with P. viticola (genotype effect); and comparison of each genotype with mock inoculated samples during inoculation time-course (biotic stress effect). Three statistical methods were used, GeNorm, NormFinder, and BestKeeper, allowing to identify UBQ, EF1α and GAPDH as the most stable genes for the genotype effect. A planned process with the objective to create a group of entities by applying a predefined criteria to a larger group of entities. this term refers to a planned process and therefore is distinct from the notion of 'natural selection', a process covering the operation of natural causes by which those individuals of a species that are best adapted to the environment tend to be preserved and to transmit their characters, while those less adapted die out, so that in the course of generations the degree of adaptation to the environment tends progressively to increase. (as defined by Oxford English Dictionary) Person: Philippe Rocca-Serra selection process OBI selection value specification The value of 'positive' in a classification scheme of "positive or negative"; the value of '20g' on the quantitative scale of mass. An information content entity that specifies a value within a classification scheme or on a quantitative scale. This term is currently a descendant of 'information content entity', which requires that it 'is about' something. A value specification of '20g' for a measurement data item of the mass of a particular mouse 'is about' the mass of that mouse. However there are cases where a value specification is not clearly about any particular. In the future we may change 'value specification' to remove the 'is about' requirement. PERSON:Bjoern Peters value specification cytometry assay An intracellular material detection by flow cytometry assay measuring peforin inside a culture of T cells. An assay that counts and/or measures characteristics of cells. IEDB IEDB cytometry assay collection of specimens Blood cells collected from multiple donors over the course of a study. A material entity that has two or more specimens as its parts. Details see tracker: https://sourceforge.net/p/obi/obi-terms/778/ Person: Chris Stoeckert, Jie Zheng OBIB, OBI Biobank collection of specimens reactant role A role borne by a biological or chemical entity that participates or has molecular components that participate in a chemical reaction. Sebastian Duesing reactant role specimen Biobanking of blood taken and stored in a freezer for potential future investigations stores specimen; collecting a stone from a site. A material entity that is collected for potential use as an input upon which measurements or observations are performed. PERSON: James Malone PERSON: Philippe Rocca-Serra GROUP: OBI Biomaterial Branch specimen data transformation The application of a clustering protocol to microarray data or the application of a statistical testing method on a primary data set to determine a p-value. A completely executed planned process that produces output data from input data. Elisabetta Manduchi Helen Parkinson James Malone Melanie Courtot Philippe Rocca-Serra Richard Scheuermann Ryan Brinkman Tina Hernandez-Boussard data analysis data processing Branch editors data transformation data transformation objective normalize objective An objective specification to transformation input data into output data Modified definition in 2013 Philly OBI workshop James Malone PERSON: James Malone data transformation objective study design a matched pairs study design describes criteria by which subjects are identified as pairs which then undergo the same protocols, and the data generated is analyzed by comparing the differences between the paired subjects, which constitute the results of the executed study design. A plan specification comprised of protocols (which may specify how and what kinds of data will be gathered) that are executed as part of an investigation and is realized during a study design execution. Editor note: there is at least an implicit restriction on the kind of data transformations that can be done based on the measured data available. PERSON: Chris Stoeckert experimental design rediscussed at length (MC/JF/BP). 12/9/08). The definition was clarified to differentiate it from protocol. study design eligibility criterion PMID: 17579629 -Eligibility criteria included: untreated ED-SCLC; age >/=70 and performance status 0-2, or age <70 and PS 3. an eligibility criterion (rule) is_a selection criterion which defines and states the requirements (positive or negative) for an entity to be considered as suitable for a given task or participation in a process. Person: Philippe Rocca-Serra eligibility rule Adapted from Clinical Research Glossary Version 4.0 CDICS glossary group eligibility criterion human subject enrollment enlisting familiy members of HIV patients into a study A planned process with the objective to obtain a population of human subjects to participate in an investigation by determining eligibility of subjects and obtaining informed consent. As with group assignment, should the specified output here be an organism which bears a role Bjoern Peters IEDB criteria come from plan / clinical trial branch human subject enrollment acquisition Downloading a 3D structure from the PDB. Purchasing antibodies from sigma. A planned process with the objective of gaining possession of an entity. 5/31/2012 - OBI workshop: This process is not implying ownership of the material / information. Following OBI call November 2012,5th: addition of a restriction to acquisition class to capture the need of having selection criteria Relates to the creation of a class 'selection rule' Bjoern Peters IEDB This needs to be fleshed out and logical definitions added that will allow to place the children terms automatically under acquisition acquisition material acquisition Acquiring 50 C57BL/6 mice bred in the animal facility of the institute as a service to investigators. Purchasing 1 mg of peptides synthesized by Mimotopes at 80% purity. Getting a gift of purified CD4+ specific antibodies presented by Stephen Schoenberger at LIAI. An acquisition in which possession of a material entity is gained. The assumption is that the object already exists in its current state, e.g, an available mouse strain purchased from the Jackson Lab, this is the differentia from specimen creation This excludes processes that create or change materials, such as material transformations. Bjoern Peters, Alan Ruttenberg, Helen Parkinson material procurement IEDB material acquisition information acquisition Gathering all influenza HA sequences from GenBank, Retrieveing HLA allele frequencies in the North American populations from dbMHC An acquisition in which possession of information is gained. This excludes processes that create or change information, such as assays and data transformations. Bjoern Peters data collection OBI branch derived information acquisition disease A disposition (i) to undergo pathological processes that (ii) exists in an organism because of one or more disorders in that organism. disease disease course The totality of all processes through which a given disease instance is realized. replace 'OBI:occurrence of disease', need to add logical definition The axioms of OBI occurence of disease: Equivalent classes: realizes some disease Superclasses: 'has part' some 'pathologic process' 'has participant' some (organism and ('has role' some 'host of immune response role')) biological_process realizes some 'host of immune response role' disease course protein antithrombin III is a protein An amino acid chain that is canonically produced de novo by ribosome-mediated translation of a genetically-encoded mRNA, and any derivatives thereof. An amino acid chain that is produced de novo by ribosome-mediated translation of a genetically-encoded mRNA, and any derivatives thereof. protein An organic amino compound that consists of amino acid residues (unmodified amino-acid residues and/or modified amino-acid residues) linked by peptide bonds or derivatives of such bonds. amino acid chain material anatomical entity Anatomical entity that has mass. material anatomical entity Anatomical entity that has no mass. immaterial anatomical entity anatomical cluster Anatomical group whose component anatomical structures lie in close proximity to each other. anatomical cluster Biological entity that is either an individual member of a biological species or constitutes the structural organization of an individual member of a biological species. anatomical entity example to be eventually removed example to be eventually removed failed exploratory term The term was used in an attempt to structure part of the ontology but in retrospect failed to do a good job Person:Alan Ruttenberg failed exploratory term metadata complete Class has all its metadata, but is either not guaranteed to be in its final location in the asserted IS_A hierarchy or refers to another class that is not complete. metadata complete organizational term Term created to ease viewing/sort terms for development purpose, and will not be included in a release PERSON:Alan Ruttenberg organizational term ready for release Class has undergone final review, is ready for use, and will be included in the next release. Any class lacking "ready_for_release" should be considered likely to change place in hierarchy, have its definition refined, or be obsoleted in the next release. Those classes deemed "ready_for_release" will also derived from a chain of ancestor classes that are also "ready_for_release." ready for release metadata incomplete Class is being worked on; however, the metadata (including definition) are not complete or sufficiently clear to the branch editors. metadata incomplete uncurated Nothing done yet beyond assigning a unique class ID and proposing a preferred term. uncurated pending final vetting All definitions, placement in the asserted IS_A hierarchy and required minimal metadata are complete. The class is awaiting a final review by someone other than the term editor. pending final vetting placeholder removed placeholder removed terms merged An editor note should explain what were the merged terms and the reason for the merge. terms merged term imported This is to be used when the original term has been replaced by a term imported from an other ontology. An editor note should indicate what is the URI of the new term to use. term imported term split This is to be used when a term has been split in two or more new terms. An editor note should indicate the reason for the split and indicate the URIs of the new terms created. term split universal Hard to give a definition for. Intuitively a "natural kind" rather than a collection of any old things, which a class is able to be, formally. At the meta level, universals are defined as positives, are disjoint with their siblings, have single asserted parents. Alan Ruttenberg A Formal Theory of Substances, Qualities, and Universals, http://ontology.buffalo.edu/bfo/SQU.pdf universal defined class A defined class is a class that is defined by a set of logically necessary and sufficient conditions but is not a universal "definitions", in some readings, always are given by necessary and sufficient conditions. So one must be careful (and this is difficult sometimes) to distinguish between defined classes and universal. Alan Ruttenberg defined class named class expression A named class expression is a logical expression that is given a name. The name can be used in place of the expression. named class expressions are used in order to have more concise logical definition but their extensions may not be interesting classes on their own. In languages such as OWL, with no provisions for macros, these show up as actuall classes. Tools may with to not show them as such, and to replace uses of the macros with their expansions Alan Ruttenberg named class expression to be replaced with external ontology term Terms with this status should eventually replaced with a term from another ontology. Alan Ruttenberg group:OBI to be replaced with external ontology term requires discussion A term that is metadata complete, has been reviewed, and problems have been identified that require discussion before release. Such a term requires editor note(s) to identify the outstanding issues. Alan Ruttenberg group:OBI requires discussion The term was added to the ontology on the assumption it was in scope, but it turned out later that it was not. This obsolesence reason should be used conservatively. Typical valid examples are: un-necessary grouping classes in disease ontologies, a phenotype term added on the assumption it was a disease. https://github.com/information-artifact-ontology/ontology-metadata/issues/77 https://orcid.org/0000-0001-5208-3432 out of scope