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Reuse in the early development phases of an application can reduce the effort of producing specifications and improve their quality. The paper presents the requirement specification phase for object-oriented applications under a reuse approach. Object-oriented specifications are reused by accessing a repository of reusable components and by adapting them to the application requirements. A model for specifications reuse based on the composition approach is presented; the model is also used to encode development knowledge guiding in the specification activity. Specification reuse is supported by a tool to select reusable components and to guide the developer in tailoring the components to the needs of a specific application. The RECAST tool (REquirement Composition And Specification Tool) presented in the paper has functionalities for retrieving reusable components from a repository and functionalities driving the composition and tailoring activities, on the basis of knowledge about the development process stored in the repository.

B. Pernici, M. G. Fugini and R. Bellinzona, "Reusing Specifications in OO Applications," in IEEE Software, vol. 12, no. , pp. 65-75, 1995.
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