SHACL Shape Constraints
The MatWerk KG enforces structural integrity through SHACL (Shapes Constraint Language) validation. Each shape defines mandatory patterns that instances must satisfy to be included in a published release.
These shapes are executed automatically during every build cycle by the validation pipeline.
Shape Catalogue
| Shape | Target Class | Constraint |
|---|---|---|
| Textual Entity | IAO_0000300 |
Must be about something |
| No Punning | owl:NamedIndividual |
Must not use rdfs:subClassOf |
| Role Bearer | BFO_0000023 |
Must have role of and realized in |
| Role Realization | BFO_0000023 |
Must be realized in a process |
| Ontology Variant | NFDI_0000024 |
Must be part of an ontology |
| Ontology Version (Complex) | NFDI_0000026 |
Must be subject of version number/IRI, optionally file data items |
| Email Address Value | IAO_0000300 |
Must have a value |
| URL Instance | NFDI_0000223 |
Must have a url |