Other partially developed ontologies

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Beyond STEP (Geometry/Topology) by Marios_Pitikakis — last modified 2006-11-17 23:42

The intent of this work was to provide an ontology suited for working with boundary representation models (B-reps), which are widely used in CAD industry. STEP refers to the ISO 10303 standard for exchange of product model data. The current ontology was built on part 42 of this standard, which deals with geometric and topological representation of models. Our initial plan was to integrate and extent concepts and relations that are not present in the STEP 42 standard, including information related to tolerances as well as support for geometry descriptions (e.g. implicit curves and surfaces). This work was discontinued.