An approach to the analysis of design concepts using the rough set theory

Authors:
D. Alisantoso;L. P. Khoo;I. B. H. Lee
Affiliations:
School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798;School of Mechanical and Production Engineering, Nanyang Technological University, 50 Nanyang Avenue, Singapore 639798;SIMTech Institute of Manufacturing Technology, 72 Nanyang Drive, Singapore 638075
Venue:
Artificial Intelligence for Engineering Design, Analysis and Manufacturing
Year:
2004

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Abstract

This paper describes an approach to the analysis of design concepts (DCs) using the rough set theory. The proposed approach attempts to extract design knowledge from past designs, and used the knowledge obtained to perform DC–capability mapping in a dynamic design evolution environment. The mapping enables designers to estimate the feasibility of a DC to meet stipulated design specifications. The proposed approach encompasses two algorithms, namely, the dissimilar objects algorithm and the attribute decomposition algorithm, to deal with an information system with unavailable information and multidecision attributes, respectively. The details of these algorithms are presented. A case study on the design of vacuum cleaners is used to illustrate the capability of the proposed approach.