Dublin Core Metadata Initiative, OpenWEMI Working Group
OpenWEMI is a minimally constrained vocabulary for describing created resources using the concepts of Work, Expression, Manifestation, Item.
Endeavor
A creation.
Work
An abstract notion of an artistic or intellectual creation.
A work is an abstraction that represents the concepts behind an Endeavor. Each metadata community will have a different definition of Work, but it should be the broadest definition of the Endeavors being described.
Expression
A perceivable form of the creation.
Endeavors are made tangible through some kind of expression, such as text, sound, or a visual form. There may be more than one expression of a work of the same type or of different types.
Manifestation
The physical embodiment of a creation.
A manifestation is an Endeavor that has been realized in some physical or digital form. A manifestation may be a single realization or a realization that is produced in multiple copies such as the publication of a music compact disk or the manufacture of a shirt.
Item
An exemplar of a creation.
An Item is a single instance of an Endeavor, something that can have a place on a shelf or a location online.
related Work
A Work that is related in some way to another Work.
This provides a non-specific relationship between two Works. The specific relationship type can be defined as a sub-property of relatedWork.
related Expression
An Expression that is related in some way to another Expression.
This provides a non-specific relationship between two Expressions. The specific relationship type can be defined as a sub-property of relatedExpression.
related Manifestation
A Manifestation that is related in some way to another Manifestation.
This provides a non-specific relationship between two Manifestations. The specific relationship type can be defined as a sub-property of relatedManifestation.
related Item
An Item that is related in some way to another Item.
This provides a non-specific relationship between two Items. The specific relationship type can be defined as a sub-property of relatedItem.
expresses
An Endeavor that expresses a Work.
A relationship asserted from an Expression to a Work that it expresses.
expressed by
An Expression of a Work.
A relationship asserted from a Work to an Expression that expresses the Work.
manifests
An Endeavor that manifests an Expression or a Work.
A relationship asserted from a Manifestation to an Expression or a Work.
manifested by
A Manifestation of a Work or an Expression.
A relationship asserted from a Work or an Expression to a Manifestation.
instantiates
An Endeavor that instantiates a Manifestation, an Expression or a Work.
A relationship asserted from an Item to a Manifestation, an Expression, or a Work.
instantiated by
An instantiation of a Manifestation, an Expression or a Work.
A relationship asserted from a Work, an Expression, or a Manifestation to an Item.
common Endeavor
Relates any two resources that are or contain the same endeavor.
commonEndeavour is intended to define a relationship between two resources that may or may not be modeled as OpenWEMI. This makes it possible to assert that a resource modeled using a vocabulary that does not use the entity model explicitly is describing the same Work, Expression, Manifestation, and/or Item as another resource.
common Work
Relates any two resources that are or contain the same Work.
commonWork is intended to define a relationship between two resources that may or may not be modeled as OpenWEMI. This makes it possible to assert that a resource modeled using a vocabulary that does not use the OpenWEMI entity model explicitly is describing the same Work as another resource.
common Expression
Relates any two resources that are or contain the same Expression.
commonExpression is intended to define a relationship between two resources that may or may not be modeled as OpenWEMI. This makes it possible to assert that a resource modeled using a vocabulary that does not use the OpenWEMI entity model explicitly is describing the Expression as another resource.
common Manifestation
Relates any two resources that are or contain the same Manifestation.
commonManifestation is intended to define a relationship between two resources that may or may not be modeled as OpenWEMI. This makes it possible to assert that a resource modeled using a vocabulary that does not use the OpenWEMI entity model explicitly is describing the same Manifestation as another resource.
common Item
Relates any two resources that are or contain the same Item.
commonItem is intended to define a relationship between two resources that may or may not be modeled as OpenWEMI. This makes it possible to assert that a resource modeled using a vocabulary that does not use the OpenWEMI entity model explicitly is describing the same Item as another resource.