EDTF value

• CURIE: gmeow:edtfValue
• IRI: https://blackcatinformatics.ca/gmeow/edtfValue
• Category: property
• Defined by: gmeow:slices/temporal
• Box roles: RBox role (What is this?)

An ISO 8601-2 (EDTF) expression of an instant or interval, stored as a plain literal. EDTF parsing and normalization are solver-layer concerns (Principle 12).

Structure

Property shape: datatype property; ? -> rdfs:Literal; functional

Practical Pattern

Use gmeow:edtfValue from ? to rdfs:Literal when the relationship itself belongs in the native GMEOW graph.

External Equivalences

Equivalent or closely aligned targets: edtf

Linkages

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

Term Equivalences

Usage Advice

Use when

• Use when a point or span is approximate, uncertain, seasonal, or open-ended — '1804?', '19XX', '2020-21/2020-09' — and a single crisp xsd:dateTime would lie about the precision.

Avoid when

• Avoid when a fully crisp value is known (use gmeow:instantValue) and avoid encoding ontic determinacy here instead of on gmeow:hasDeterminacy; the EDTF string expresses the value, not its determinacy classification.

How to use

• Store the raw EDTF string as a plain literal and leave parsing, range expansion, and comparison to the solver layer (P12); pair with gmeow:hasDeterminacy to make the approximate/uncertain nature queryable without parsing.

Examples

• ex:foundingInstant gmeow:edtfValue "1804?".