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Publication Citation: An Evaluation of Description Logic for the Development of Product Models

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Author(s): Xenia Fiorentini; Rachuri Rachuri; Mahesh Mani; Steven J. Fenves; Ram D. Sriram;
Title: An Evaluation of Description Logic for the Development of Product Models
Published: April 15, 2008
Abstract: The languages and logical formalisms developed by information scientists and logicians concentrate on the theory of languages and logical theorem proving. These languages, when used by domain experts to represent their domain of discourse, most often have issues related to the level of expressiveness of the languages and need specific extensions. In this paper we evaluate the levels of logical formalisms and expressivity requirements for the development of ontologies for manufacturing products. We first discuss why the representation of a product model that needs to be shared across globally networked enterprises is inherently complex and prone to inconsistencies. We then explore how these issues can be overcome through a structured knowledge representation model. We report our evaluation of OWL-DL in terms of expressivity and of the use of SWRL for representing domain specific rules. We present a case study of product assembly to document this evaluation and further show how the OWL-DL reasoner together with the rule engine can enable reasoning of the product ontology. We discuss how the proposed product ontology can be used within a manufacturing context.
Citation: NIST Interagency/Internal Report (NISTIR) - 7481
Pages: 31 pp.
Keywords: product model; description logic; logical formalisms; domain experts; manufacturing
Research Areas: Metrology and Standards for Manufacturing Processes
PDF version: PDF Document Click here to retrieve PDF version of paper (2MB)