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Software Engineering Journal

Issue 3 • Date May 1995

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Displaying Results 1 - 4 of 4
  • Structuring the semantic definitions of graphical design notations

    Publication Year: 1995 , Page(s): 105 - 115
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (700 KB)  

    Although design notations are increasingly being given a formal semantics, often the notations are only informally related to their semantic models. This may be because graphical design notations cannot directly be given an abstract syntax using the well-studied string grammars. The paper proposes the use of node-labelled controlled graph grammars to define the abstract syntax of graphical design notations. To illustrate this approach, a simple 12-rule grammar is given for a subset of the MASCOT design notation View full abstract»

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  • Formal specification and verification of a procedural protocol: case study

    Publication Year: 1995 , Page(s): 97 - 104
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (476 KB)  

    Techniques for the specification and verification of computer network protocols have progressed significantly in the past decade. The progress is largely due to the development of the state transition approach to formal specification and to the greater automation of the verification process. Some ISO state event protocols have been specified and verified using the state transition technique. However, this approach has not been used for a non-state event-driven type of protocol. The ISO JTM (job transfer and manipulation) protocol contains procedures specifying where work is to be done in open systems; hence it is a procedural-oriented type of protocol. This paper presents a case study using a state transition technique (numerical Petri nets) and an automated tool (PROTEAN=PROTocol Emulation and ANalysis) to specify and verify a procedural protocol (JTM) View full abstract»

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  • Towards more flexible management of software systems development using meta-models

    Publication Year: 1995 , Page(s): 79 - 88
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (748 KB)  

    Software development paradigms currently used within industry are based on established models of the software life-cycle. As technology has evolved and become more accessible, more flexible approaches to the development of software systems have been advocated. Several new models have evolved over recent years based on more powerful software engineering tools and more sophisticated development methodologies. A more responsive approach to the development of software systems should allow the integration of alternative development models to be achieved without requiring changes in the development management structure. The paper introduces meta-models that allow more flexible management of software systems development. A management technique (generalised activity networks) is also introduced that assists in achieving this aim View full abstract»

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  • Exploring the behaviour of neural network software quality models

    Publication Year: 1995 , Page(s): 89 - 96
    Cited by:  Papers (3)
    Save to Project icon | Click to expandQuick Abstract | PDF file iconPDF (552 KB)  

    We explore the behaviour of neural network software quality models. We select a multiple regression quality model from the principal components of software complexity metrics collected from a large commercial software system. We train two neural networks; one with the complete set of principal components and one with the set of components selected by multiple regression model selection. Comparisons of the three models, for two quality measures gathered from five related software systems, lead to a better understanding of neural network software quality models, and the relationship between software complexity metrics and software quality metrics View full abstract»

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