Depiction Usage
- CURIE:
gmeow:DepictionUsage - IRI: https://blackcatinformatics.ca/gmeow/DepictionUsage
- Category: class
- Defined by:
gmeow:slices/images - Box roles: TBox role (What is this?)
A reified, context-dependent depiction of an entity by an image — an observation in the universal claim stack (observation-spine bridge): an entity (depictionSubject) is shown in a given image (depictionImage), in a particular context (depictionContext), by or among a particular audience (depictionAudience), over a period (depictionInterval), asserted by an authority (depictionAuthority). Perspectival — a usage is whoever's, never a global fact — so it carries no notion of a preferred or canonical depiction. Mint one DepictionUsage per (entity, image, context) tuple; its period is carried by gmeow:depictionInterval or by validFrom/validUntil on the statement.
Structure
Subclass of: gmeow:Observation, gufo:Relator
Practical Pattern
Use gmeow:DepictionUsage as a specialized kind of gmeow:Observation, gufo:Relator. Add statement metadata or a standpoint when the assertion needs provenance, confidence, or vantage.
Example Snippets
These snippets are generated from canonical slice examples and trimmed to the Turtle blocks where this term appears.
Photo Metadata
- Source:
slices/extensions/images/examples/photo-metadata.ttl - Examples catalog: open in catalog#example-slices-extensions-images-examples-photo-metadata
# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: image metadata at three layers. EXIF technical tags
# (gmeow:hasExifTag) record how the bytes were captured. A gmeow:ImageRegion with
# a typed gmeow:RegionSelector pins WHERE something is in the frame (a fractional
# bounding box). And a gmeow:DepictionUsage makes "this image depicts X" a
# PERSPECTIVAL act, not a bare fact: it records the subject, the context (candid /
# portrait / childhood …), and WHOSE authority asserts the depiction — so the same
# photo can be a "family" depiction to one audience and a "work" depiction to
# another, without either being privileged.
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex: <https://blackcatinformatics.ca/gmeow/examples/images/> .
@prefix rdfs: <http://www.w3.org/2000/01/rdf-schema#> .
# --- The depiction as a perspectival act: who is depicted, in what context, by
# whose authority — not a privileged "this is a photo of Dana" fact.
ex:depiction a gmeow:DepictionUsage ;
gmeow:depictionImage ex:photo ;
gmeow:depictionSubject ex:dana ;
gmeow:depictionContext gmeow:depictionContextCandid ;
gmeow:depictionAuthority ex:photographer .