Ontology-based semantic interoperability of product data

To realize semantic interoperability of product data in collaborative product development field,an ontology-based framework for semantic interoperability was proposed.Firstly,a standard-based approach was used to develop a Product Data Semantic Representation Language(PDSRL) formalizing product data.Then,mapping relationship was established between an existing application ontology and the PDSRL ontology by using semantic equivalence and semantic similarity assessment.Finally,taking the PDSRL ontology as a mediator,the data exchange was implemented among application ontologies,and semantic interoperability of product data was realized among heterogeneous Computer Aided Design(CAD) systems.A prototype system and an application instance were presented to demonstrate the feasibility and effectiveness of the framework.