A rough set approach to design concept analysis in a design chain

D. Alisantoso, L. P. Khoo, B. H Ivan Lee, S. C. Fok

Research output: Contribution to journalArticlepeer-review

21 Citations (Scopus)


The inherent dynamic relationships among design tasks performed concurrently at different organizations characterize the complexities of a design chain where designers with diverse expertise need to collaborate across organizational boundaries. To ensure timely completion of inter-related design tasks, metrics to facilitate the early evaluation of design concepts are crucial. The ability to evaluate and select suitable design concepts at an early stage will ensure better solutions and greater savings in time and effort further downstream. This paper proposes a new approach based on the rough set theory to design concept analysis. The approach aims at early detection of design inadequacy. A so-called information system is constructed using the information gleaned from design concepts and design capabilities, and analyzed using the rough set theory to derive a set of design rules for design concept analysis. The approach embodies a technique for handling attributes with unavailable information, which is a frequent occurrence in design. This paper presents details of the proposed approach, the novel technique, and a case study.

Original languageEnglish
Pages (from-to)427-435
Number of pages9
JournalInternational Journal of Advanced Manufacturing Technology
Issue number5-6
Publication statusPublished - Sep 2005
Externally publishedYes


  • Design chain
  • Design concept analysis
  • Rough set theory
  • Rule induction

ASJC Scopus subject areas

  • Industrial and Manufacturing Engineering

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