Reference

evo-story.shapes

Shapes: 1
Source: ontologies/governance/evidence-os/evo-story.shapes.ttl

SHACL Shapes (1)

Shape	Label	Target class	Properties
evo:RequirementInstanceShape	Requirement-instance shape (post-ADR-053)	`---`	4

Requirement-instance shape (post-ADR-053)

Validates structural integrity of requirement instances per ADR-053 §D6. A requirement is any node carrying ess:advancesAlpha ess:Requirements (OMG Essence 2.0 alpha; the parent type prov:Entity is entailed by the ess:advancesAlpha range once the kernel is loaded, so the shape targets the predicate use directly). Every requirement MUST carry a human-readable label, a stable identifier for cross-connector traceability, advance the Requirements alpha, and carry a provenance attribution. Acceptance semantics are expressed as alpha-state transitions on this entity, not as a separate shape.

Target class: ---

Property path	Constraint	Cardinality
dcterms:identifier	xsd:string · 1	1..A requirement instance MUST carry dcterms:identifier (connector-sourced stable ID, e.g. Jira key, ticket number).
rdfs:label	xsd:string · 1	1..A requirement instance MUST declare exactly one rdfs:label (human-readable narrative — INVEST story text, plain-language requirement, etc.).
prov:wasAttributedTo	sh:IRI · 1	A requirement instance MUST carry prov:wasAttributedTo (author / product-owner agent IRI) — PROV-O provenance...*
ess:advancesAlpha	1 · A requirement instance MUST advance the ess:Requirements alpha (OMG Essence 2.0 bridge). Current alpha state is carried on the corresponding advancement activity via ess:currentAlphaState.	—

SPARQL example

# List all shapes and their target classes
PREFIX sh: <http://www.w3.org/ns/shacl#>
PREFIX rdfs: <http://www.w3.org/2000/01/rdf-schema#>

SELECT ?shape ?label ?target
WHERE {
  ?shape a sh:NodeShape ;
         rdfs:label ?label .
  OPTIONAL { ?shape sh:targetClass ?target }
}
ORDER BY ?label