DocumentCode :
811103
Title :
Dependency analysis in constraint negotiation
Author :
Kusiak, Andrew ; Wang, Juite
Author_Institution :
Dept. of Ind. Eng., Iowa Univ., Iowa City, IA, USA
Volume :
25
Issue :
9
fYear :
1995
fDate :
9/1/1995 12:00:00 AM
Firstpage :
1301
Lastpage :
1313
Abstract :
Problems in engineering design are constraint-oriented and often involve multiple perspectives. Designers must consider not only functional requirements of a product but also its life-cycle perspectives. Each perspective has its own set of constraints which may contain conflicting or unsatisfied requirements. A human designer can not be aware of all constraints and design alternatives all the time. The objective of this paper is to develop a methodology to assist designers in negotiation of constraints. A network model is proposed to represent relationships among design variables. An algorithm is developed to derive dependencies between design variables and goals. Based on the dependencies obtained, design modifications are generated for resolving conflicts. In the second part of the paper, a fuzzy-logic-based approach is used to model imprecise dependencies between variables in the case when no sufficient quantitative information is available. The approach proposed can be used to increase the amount of information provided to the designers for making decisions
Keywords :
constraint handling; design engineering; fuzzy logic; inference mechanisms; intelligent design assistants; neural nets; constraint negotiation; dependency analysis; design modifications; engineering design; functional requirements; fuzzy-logic-based approach; imprecise dependencies; life-cycle perspectives; network model; Algorithm design and analysis; Cities and towns; Design engineering; Design methodology; Humans; Industrial engineering; Input variables; Life testing; Process design; Time factors;
fLanguage :
English
Journal_Title :
Systems, Man and Cybernetics, IEEE Transactions on
Publisher :
ieee
ISSN :
0018-9472
Type :
jour
DOI :
10.1109/21.400508
Filename :
400508
Link To Document :
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