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    Towards an architectural approach for the dynamic and automatic composition of software components

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    In a component-based software system the components are specified, designed and implemented with the intention to be reused, and are assembled in various contexts in order to produce a multitude of software systems. However, this ideal scenario is not always the case, e.g., the integration with legacy components. In this context, one main problem in component assembly arises. It is related to the ability to automatically and efficiently (i.e., by reducing the state-explosion phenomenon) synthesize an assembly code for a set of, possibly incompatible, software components. Moreover, this assembly should be able to evolve when things change and to be correct-by-construction , i.e., despite the changes, it always ensures a set of properties of interest. In this paper we propose a Software Architecture (SA) based approach in which architectural analysis and code synthesis are combined together in order to efficiently and correctly assemble a system out of a set of already implemented components. The approach can be equally applied to efficiently manage the whole re-factoring of the system when one or more components needs to be substituted, still maintaining the required properties. The specified and validated system SA is used as starting point for the derivation of adaptors required to correctly replace components in the composed system. The approach is applied and validated over an explanatory example concerning with a "cooling water pipe" system.

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    Description

    Title : Towards an architectural approach for the dynamic and automatic composition of software components
    Author(s) : Antonio Bucchiarone, Andrea Polini, Patrizio Pelliccione, Massimo Tivoli
    Abstract : In a component-based software system the components are specified, designed and implemented with the intention to be reused, and are assembled in various contexts in order to produce a multitude of software systems. However, this ideal scenario is not always the case, e.g., the integration with legacy components. In this context, one main problem in component assembly arises. It is related to the ability to automatically and efficiently (i.e., by reducing the state-explosion phenomenon) synthesize an assembly code for a set of, possibly incompatible, software components. Moreover, this assembly should be able to evolve when things change and to be correct-by-construction , i.e., despite the changes, it always ensures a set of properties of interest. In this paper we propose a Software Architecture (SA) based approach in which architectural analysis and code synthesis are combined together in order to efficiently and correctly assemble a system out of a set of already implemented components. The approach can be equally applied to efficiently manage the whole re-factoring of the system when one or more components needs to be substituted, still maintaining the required properties. The specified and validated system SA is used as starting point for the derivation of adaptors required to correctly replace components in the composed system. The approach is applied and validated over an explanatory example concerning with a "cooling water pipe" system.
    Subject : unspecified
    Area : Other
    Language : English
    Year : 2006

    Affiliations University of L'Aquila
    Journal : Proceedings of the ISSTA 2006 workshop on Role of software archi
    Issue : June
    Publisher : ACM Press
    City : New York, New York, USA
    Pages : 12 - 21
    Url : http://portal.acm.org/citation.cfm?doid=1147249.1147251
    Isbn : 1595934596
    Doi : 10.1145/1147249.1147251

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