'Signposting', a parameter-driven task-based model of the design process

Peter John Clarkson, James Robert Hamilton

Research output: Contribution to journalArticleScientificpeer-review

163 Citations (Scopus)


This paper addresses the need for computer support in aerospace design. A review of current design methodologies and computer support tools is presented, and the need for further support is discussed, with particular reference to the early formative stages of the design process. A parameter-based model of design is proposed, founded on the assumption that a design process can be constructed from a predefined set of tasks. This is supported by knowledge of possible tasks in which the confidence in key design parameters is used as a basis for identifying, or signposting, the next task. A prototype implementation of the signposting model, for use in the design of helicopter rotor blades, is described and results from trials of the tool are presented. Further areas of research are discussed.

Original languageEnglish
Pages (from-to)18-38
Number of pages21
JournalResearch in Engineering Design - Theory, Applications, and Concurrent Engineering
Issue number1
Publication statusPublished - 2000
Externally publishedYes


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