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Non-functional requirements are considered as vital factors for producing software of better quality. As a widely adopted non-functional requirements analysis framework, the NFR Framework provides a graphical treatment for goal refinement and evaluation. This paper propose a logical representation for the NFR Framework. In addition, an NFR extension operator and an accompanying extension function...
Problem Frames (PF) approach is prospective for describing and analyzing software problems. Problem decomposition is fundamental for managing problem size and complexity in RE and `projection' has been argued to be an effective technique for analyzing and decomposing complex problems in PF. However, problem analysis in PF approach is still an empirical, tedious, and subjective process, and it heavily...
Dependability, which is regarded to be an integrative concept characterized by properties such as reliability, safety, security, and maintainability, has been paid more and more attentions recently. However, it has not been followed with enough interest by traditional requirements engineering approaches. This paper proposes a knowledge based approach for dependability requirements elicitations. This...
Problem analysis has long been recognized as key to requirements engineering, for which problem frames approach offers a structured way by means of providing a generic paradigm for analyzing problems of various types. Problem decomposition is an important concern in structuring problem which has also been recognized as the key to mastering problem size and complexity. However, at present it still...
Automatic discovery and composition of Web services is an important research area in Web service technology, in which the specification of Web services is a key issue. This paper presents a Web service capability description framework based on the environment ontology. This framework depicts Web services capability in two aspects: the operable environment and the environment changes resulting from...
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