L0 master › SL Semantic Layer
bra0 · architecture cartography · L1 semantic layer

Semantic Layer: meaning, relations, model completeness

The 9 semantic capabilities of bra0, arranged under the three canonical sub-domains: model construction (authoring, mapping, vocabulary), formalization and reasoning (schema, OWL reasoning, enrichment), projection and acceleration (reactive projection, shape-driven forms, KS templates). Two shipped, four partial, three planned. Each card carries its real status and opens its capability.

Each column is a canonical sub-domain. Click a capability to open it in the referential.

SL Semantic Layer Semantic Plane What does it mean? How do concepts relate? Is the model complete? 9 capabilities Model Construction SL-1 · SL-5 · SL-6 SL-1 SHIPPED Ontology Authoring Create/edit OWL 2 + SKOS 11 entity types · visual canvas OWL 2 · SKOS SL-5 PARTIAL Data Mapping W3C RML TriplesMap CSV/JSON → RDF · IRI templates RML SL-6 PLANNED Vocabulary Composition Multi-vocabulary KnowledgeSpaces via prefix management SKOS Formalization and Reasoning SL-2 · SL-3 · SL-4 SL-2 PARTIAL Schema Definition ShEx shapes → TypeScript ORM static files + codegen ShEx SL-3 SHIPPED OWL Reasoning OWL 2 RL inference · 9 rules fixed-point via SPARQL INSERT OWL 2 RL · SPARQL SL-4 PARTIAL Semantic Enrichment LFS-MD annotation parser [text]{=uri .Class} · MD↔RDF LFS-MD Projection and Acceleration SL-7 · SL-8 · SL-9 SL-7 PLANNED Reactive Projection SPARQL as reactive subscriptions auto re-eval on mutations SPARQL SL-8 PLANNED Shape-Driven Forms Auto-generate edit forms from SHACL/ShEx · XSD widgets SHACL · ShEx SL-9 PLANNED KS Templates TBox + shapes + queries + ABox 3 built-in templates
Real statuses, source: capability referential (2026-07-09). Open the SL rubric ›
Shipped — in production Partial — foundation in place, in progress Planned — on the roadmap Gap — identified, not built

Reading

The semantic layer is where raw data becomes meaning. Ontology authoring and OWL reasoning are shipped; mapping, schema and enrichment are partial; the projection and acceleration round-out is planned. Statuses derived from the referential (capabilities.html cap-SL-1..9, 2026-07-09).