Design/constraint model to capture design intent

Abstract

To prove the feasibility of capturing certain key aspect of design intent in a neutral data model as represented by constraints, parametrics, design, history, and features the ENGEN (Enabling GENeration mechanical design) is applied to the ISO 10303, known informally as STandard for Exchange of Product model data (STEP). The use and representation of constraints within the framework of STEP methodology, in particular the conceptual modeling language EXPRESS and the STEP physical file are discussed.