Perspectives on Software Requirements by Julio Cesar Sampaio do Prado Leite (auth.), Julio Cesar

By Julio Cesar Sampaio do Prado Leite (auth.), Julio Cesar Sampaio do Prado Leite, Jorge Horacio Doorn (eds.)

Perspectives On software program Requirements offers views on a number of present ways to software program requisites. every one bankruptcy addresses a particular challenge the place the authors summarize their reviews and effects to supply well-fit and traceable standards. Chapters spotlight established concerns with contemporary effects and reports, that are observed through chapters describing well-tuned new equipment for particular domains.

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London, UK: Addison-Wesley, 1995. A. The Role of Architecture in Requirements Engineering. Proceedings of the IEEE International Conference on Requirements Engineering; 1994 April 18-22; Colorado Springs, CO. Los Alamitos, CA: IEEE Computer Society Press, 1994. A. Problems and Requirements. Proceedings of the Second IEEE International Symposium on Requirements Engineering; 1995 March; York, UK. Los Alamitos, CA: IEEE Computer Society Press, 1995. , and Domges, R. The NATURE of Requirements Engineering.

UMl Metamodel ,'- - - - - - - - - - - - - - - - - - - - - - - -" I I Metamodel .. , UMl Models Figure 2-3. Role of the Metamodel From the viewpoint of a metamodel mm, the models differ in the submodels, mmjl> mmj2, ... , and mmjn> of mm that are employed. That is, the models differ in the employed concept types, relationships among concept types, attribute values of instantiated concept types, or links among instantiated concept types. Figure 2-4 provides an example of a metamodel. This figure depicts a part of a UML metamodel for statechart diagrams.

In the middle model, the action plays the role of an effect of an entry action of a state. In the right hand model, the action plays the role of a doActivity of a state. The investigation of a metamodel helps to identify types of ambiguity in order to improve the understanding of those types of ambiguities that may occur in a requirements document. The actual translation of informal requirements into some formal or semi-formal representation is not necessary to spot ambiguities. However, the decisions between alternative interpretations of an informal requirement, which are often made unconsciously, can now be made more explicitly.

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