New approach to requirements trade-off analysis for complex systems

NCUIR > College of Electrical Engineering & Computer Science > Graduate Institute of Computer Science and Information Engineering > journal & Dissertation > Item 987654321/29179

Please use this identifier to cite or link to this item: http://ir.lib.ncu.edu.tw/handle/987654321/29179

Title:	New approach to requirements trade-off analysis for complex systems
Authors:	Lee,J;Kuo,JY
Contributors:	資訊工程研究所
Keywords:	SPECIFICATIONS;ACQUISITION
Date:	1998
Issue Date:	2010-06-29 20:15:39 (UTC+8)
Publisher:	中央大學
Abstract:	In this paper, we propose a faceted requirement classification scheme for analyzing heterogeneous requirements. The representation of vague requirements is based on Zadeh's canonical form in test-score semantics and an extension of the notion of soft conditions. The trade-off among vague requirements is analyzed by identifying the relationship between requirements, which could be either conflicting, irrelevant, cooperative, counterbalance, or independent. Parameterized aggregation operators, fuzzy and/or, are selected to combine individual requirements. An extended hierarchical aggregation structure is proposed to establish a four-level requirements hierarchy to facilitate requirements and criticalities aggregation through the fuzzy and/or. A compromise overall requirement can be obtained through the aggregation of individual requirements based on the requirements hierarchy. The proposed approach provides a framework for formally analyzing and modeling conflicts between requirements, and for users to better understand relationships among their requirements.
Relation:	IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING
Appears in Collections:	[Graduate Institute of Computer Science and Information Engineering] journal & Dissertation

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