Accessibility Assertion

• CURIE: gmeow:AccessibilityAssertion
• IRI: https://blackcatinformatics.ca/gmeow/AccessibilityAssertion
• Category: class
• Defined by: gmeow:slices/accessibility
• Box roles: CBox role, TBox role (What is this?)

A reified claim that a location or connection has a positive accessibility feature, a barrier, or a limited status for a given facet. Bears provenance (vantage, confidence, temporal scope) and suppression (displayable false — Principle 10). The flat shortcuts are gmeow:hasAccessibilityFeature and gmeow:hasBarrier; promote to AccessibilityAssertion when the claim itself must be a node.

Structure

Subclass of: gufo:Relator

Practical Pattern

Use gmeow:AccessibilityAssertion as a specialized kind of 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.

Location Access

• Source: slices/extensions/accessibility/examples/location-access.ttl
• Examples catalog: open in catalog#example-slices-extensions-accessibility-examples-location-access

# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: accessibility as MATCHABLE facets. One open vocabulary of
# gmeow:AccessibilityFacets (wheelchair, step-free, visual, auditory, cognitive …)
# is used across three relations: what a location HAS
# (gmeow:hasAccessibilityFeature), what it lacks as a gmeow:hasBarrier, and what an
# agent NEEDS (gmeow:hasAccessibilityNeed). Because need and feature draw on the
# same vocabulary, "Dana needs wheelchair access" and "the library has wheelchair
# access" MATCH directly. A reified gmeow:AccessibilityAssertion records who
# claims which facet, with a gmeow:assertionPolarity (feature / barrier / limited).
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/accessibility/> .

# --- A reified assertion: a surveyor claims the library is step-free (a feature).
ex:assertion a gmeow:AccessibilityAssertion ;
    gmeow:assertionSubject  ex:library ;
    gmeow:assertionFacet    gmeow:facetStepFree ;
    gmeow:assertionPolarity gmeow:polarityFeature .

External Equivalences

Equivalent or closely aligned targets: sosa

Linkages

Generated from the canonical mapping DSL. SSSOM files are the generated public interchange form for term equivalences.

Term Equivalences