Negotiation in Constraint-Based Design

[+] Author and Article Information
A. Kusiak, J. Wang, D. W. He

Intelligent Systems Laboratory, Department of Industrial Engineering, The University of Iowa, Iowa City, IA 52242-1527

J. Mech. Des 118(4), 470-477 (Dec 01, 1996) (8 pages) doi:10.1115/1.2826914 History: Received November 01, 1995; Revised June 01, 1996; Online December 11, 2007


A design problem usually involves multiple perspectives, each with own set of constraints that may interact. The objective of this paper is to develop a methodology to assist in negotiation of constraints from multiple perspectives. The proposed approach is based on qualitative reasoning that provides each perspective with negotiation information for making design decisions. A qualitative constraint network is used to characterize the qualitative and quantitative relationship between design variables. It provides means for tracking dependencies among perspectives for a set of constraints and determines the impact of design changes. When a conflict occurs, effective negotiation strategies are generated. A negotiation procedure for an ill-structured negotiation process is presented. The effectiveness of the negotiation process is improved with the procedure proposed. A valve design problem illustrates the concepts discussed in the paper.

Copyright © 1996 by The American Society of Mechanical Engineers
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