Skill Proficiency

• CURIE: gmeow:SkillProficiency
• IRI: https://blackcatinformatics.ca/gmeow/SkillProficiency
• Category: class
• Defined by: gmeow:slices/expertise

A reified, leveled proficiency of an agent in a skill — the gufo:Relator binding {agent} × {skill} × {level on a scale} × {interval}, mirroring languages' gmeow:LanguageProficiency. Mint one per (agent, skill) so per-skill levels coexist; the flat gmeow:hasSkill relation states that an agent has a skill, this relator adds the level and the scale.

Structure

Subclass of: gufo:Relator

Practical Pattern

Use gmeow:SkillProficiency 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.

Skill Proficiency

• Source: slices/core/expertise/examples/skill-proficiency.ttl
• Examples catalog: open in catalog#example-slices-core-expertise-examples-skill-proficiency

# SPDX-FileCopyrightText: 2026 Blackcat Informatics® Inc. <paudley@blackcatinformatics.ca>
# SPDX-License-Identifier: CC-BY-4.0
#
# Worked example: skill, proficiency, and credentials. A flat gmeow:hasSkill
# says an agent HAS a skill; the reified gmeow:SkillProficiency says HOW WELL, and
# crucially on WHICH SCALE — a proficiency level is meaningless without the scale
# it is read against (P11 in spirit: a value carries its frame). A gmeow:Credential
# is a separate, independently-issued attestation OF a skill, by an issuer — having
# a credential and being proficient are distinct facts. ProficiencyLevel, scale,
# Skill and Occupation are open vocabularies, minted as needed.
@prefix gmeow: <https://blackcatinformatics.ca/gmeow/> .
@prefix ex:    <https://blackcatinformatics.ca/gmeow/examples/expertise/> .
@prefix rdfs:  <http://www.w3.org/2000/01/rdf-schema#> .
@prefix xsd:   <http://www.w3.org/2001/XMLSchema#> .

# --- Proficiency: HOW WELL, read against an explicit named SCALE.
ex:proficiency a gmeow:SkillProficiency ;
    gmeow:skillProficiencyAgent ex:dana ;
    gmeow:skillProficiencyOf    ex:python ;
    gmeow:skillProficiencyLevel ex:expert ;
    gmeow:skillProficiencyScale ex:dreyfus .

Projects To

Linkages

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

Projection Coverage

Usage Advice

Use when

• Use to promote a flat gmeow:hasSkill to a leveled claim — when the attained level, the scale it is rated on, the temporal scope, or a standpoint (who avows or attributes it) must become first-class; contested levels then coexist as separate standpoint-indexed relators (Principle 9).

Avoid when

• Avoid for the 80% case where merely having the skill is enough (assert flat gmeow:hasSkill and reify on demand) and for language ratings specifically (use gmeow:LanguageProficiency, which specializes the same machinery).

How to use

• Mint one relator per (agent, skill), bind the functional roles gmeow:skillProficiencyAgent / gmeow:skillProficiencyOf / gmeow:skillProficiencyLevel / gmeow:skillProficiencyScale and the temporal gmeow:skillProficiencyInterval; carry an avowed-versus-attributed distinction through the statement layer's gmeow:accordingTo, and route any endorsement through a gmeow:Attestation over the relator.

Examples

• ex:aliceWeldingProf a gmeow:SkillProficiency; gmeow:skillProficiencyAgent ex:alice; gmeow:skillProficiencyOf ex:welding; gmeow:skillProficiencyLevel gmeow:dreyfusExpert.