EN 17632-2:2024

Building information modelling (BIM) - Semantic modelling and linking (SML) - Part 2: Domain-specific modelling patterns

Publication date:   Apr 27, 2023

Scope

This document (part 2) provides extended standard semantic modelling patterns for (at least) the following domain-specific asset aspects:
- support for distinction between two subtypes of physical objects: spatial regions and real ("tangible") objects; the latter being discrete or continuous ("bulk matter");
- support for the materialization of physical objects, adding generic chemistry aspects directly relevant for the built environment dealing with materials like concrete, steel, wood and asphalt;
- support for the interaction between objects including connections, interfaces and ports. Interactions being defined as activities where material, information, energy or forces are transferred;
- support for the definition of unstructured, human-interpretable, requirements, coming from appointing party needs, laws and regulations or sector recommendations;
- support for implicit groups having no explicit members (to model situations like "all main girders of some steel bridge");
- support for the explicit modelling of measurements reusing the existing W3C SOSA ontology (as a lightweight but self-contained SSN core ontology);
- support for spatial geometry (location/shape) reusing OGC GeoSPARQL (GML/WKT) and the WGS84_pos ontology (GPS).