OM&TA (Ontology of Material & Techniques in Art)
type: Ontology
version IRI: https://github.com/Bianca-LM/art-criticism-ontology/1.0
imports: https://w3id.org/arco/ontology/denotative-description/1.2
creator: Bianca La Manna
license: CC BY 4.0
comment: OM&TA (Ontology of Materials & Techniques in Art) is an ontology which aims at representing the relationship between materials and techniques for the description of artworks in a semantic way.

has author
type: ObjectProperty
equivalent property: hasAuthor
domain: Artwork
range: Author
comment: This property connects the artwork to the author who made it.

has current support
type: ObjectProperty
sub property of: has support
inverse of: is current support of
domain: Artwork
range: Support
comment: This property connects an artwork to its current support.

has decoration
type: ObjectProperty
domain: Artwork
range: Decoration
comment: The property connects the artwork to its decoration

has decorative technique
type: ObjectProperty
sub property of: has technique
domain: Decoration
range: Decorative Technique
comment: The property connects the decoration that belongs to an artwork to the decorative technique used to realize it.

has frame
type: ObjectProperty
domain: Artwork
range: Frame
comment: The property connects the artwork to its frame

has inscription
type: ObjectProperty
domain: Artwork
range: Inscription
comment: The property connects the artwork to its inscription

has ornament
type: ObjectProperty
domain: Artwork
range: Ornament
comment: The property connects the artwork to its ornament

has ornamental technique
type: ObjectProperty
sub property of: has technique
domain: Ornament
range: Ornamental Technique
comment: The property connects the ornament that belongs to an artwork to the ornamental technique that has been used to realize it.

has previous support
type: ObjectProperty
sub property of: has support
inverse of: is previous support of
domain: Artwork
range: Support
comment: This property connects the arttwork with its previous support.

has support
type: ObjectProperty
sub property of: topObjectProperty
domain: Artwork
range: Support
comment: The property connects the artwork to its current support

has technique
type: ObjectProperty
domain: Artwork
range: Technique
comment: The property connects the artwork to the technique used to realize it

has title
type: ObjectProperty
domain: Artwork
range: Title
comment: This property connects the artwork with its official title.

is current support of
type: ObjectProperty
sub property of: has support
domain: Support
range: Artwork
comment: Inverse property of mat:hasCurrentSupport

is dated
type: ObjectProperty
domain: Signature
range: Signature Datation
comment: The property connects the signature to its datation, if it is written on the artwork itself.

is made of
type: ObjectProperty
domain: Class
  union of: Frame
  union of: Support
range: Material
comment: The property connects the frame and the support to the material which they are made of.

is marked
type: ObjectProperty
domain: Artwork
range: Class
  union of: Mark
  union of: Mark of Carter
  union of: Mark of Founder
comment: The property connects the artwork to the mark that has been affixed on it.

is mounted on
type: ObjectProperty
sub property of: has support
domain: Material
range: Support
comment: The property connects the material on which the artwork has been realised to the current support on which it is mounted

is performed on
type: ObjectProperty
domain: Class
  union of: Decorative Technique
  union of: Ornamental Technique
  union of: Technique
range: Material
comment: The property connects the technique to the material it is performed on.

is previous support of
type: ObjectProperty
sub property of: has support
domain: Support
range: Artwork
comment: Inverse property of mat:hasPreviousSupport

is signed
type: ObjectProperty
domain: Artwork
range: Signature
comment: The property connects the artwork to the signature of the artist that made it.

transferred from
type: ObjectProperty
domain: Support
range: Support
comment: The property connects the current support of an artwork to the previous support from which it has been transferred.

date of signature
type: DatatypeProperty
range: Literal
comment: The property represents the date of the signature datation

has inscription content
type: DatatypeProperty
range: Literal
comment: This property represents the content of an inscription.

has signature
type: DatatypeProperty
range: Literal
comment: This property represents the signature of the artist imposed on the artwork.

Artwork
type: Class
comment: The entity which represents the work of art

Artwork Component
type: Class
comment: A subcomponent of an artwork which can have its own material and technique.

Author
type: Class
comment: The artists who made the artwork

Decoration
type: Class
subclass of: Artwork Component
disjoint with: Ornament
comment: An additional element which is main purpose is not practical or aesthetic, but brings "decorum" to another element.

Decorative Technique
type: Class
subclass of: Technique
comment: A technique that traditionally is used for the creation of decorative elements.

External Physical Datum
type: Class
comment: Every external physical datum of an artwork.

Frame
type: Class
subclass of: External Physical Datum
comment: Some works of art comes with a frame, which has a material and can have a decoration.

Inscription
type: Class
subclass of: Artwork Component
comment: Any kind of text added to the artwork, which is not a signature, a date or a mark.

Mark
type: Class
equivalent class: Brand
subclass of: Artwork Component
comment: The sign of an external contribution out of the author. It can be the founder or the carter, mainly used with scultpures.

Mark of Carter
type: Class
subclass of: Mark
comment: The mark of a workshop or factory for model plasters.

Mark of Founder
type: Class
subclass of: Mark
comment: The mark of a workshop or factory for casting metal.

Material
type: Class
subclass of: External Physical Datum
comment: It is the proper material on which the work of art has been made. It can be different from the support.

Ornament
type: Class
subclass of: Artwork Component
comment: An additional element other from the main body of the artwork, which helps through repeated patterns, and natural elements at the visual organization of the artwork, in which prevails the aesthetic function.

Ornamental Technique
type: Class
subclass of: Technique
comment: A technique that traditionally is used for the creation of ornaments.

Signature
type: Class
subclass of: Artwork Component
comment: The signature lived by the author on the artwork

Signature Datation
type: Class
subclass of: Signature
comment: The date of the signature, lived by the authors themselves on the artwork.

Support
type: Class
subclass of: External Physical Datum
comment: The support on which the technique is performed, "given from nature or elaborated by human beings" (Sciolla).

Technique
type: Class
comment: "The union of all the principles, rules and manners elaborated by the artists for the material processing over time, experimented in the workshops and artistic laboratories" as defined by Sciolla.

Title
type: Class
comment: The title given by the author to the artwork