Good Architecture = Good (ADL + Practices)

Abstract

Abstract. In order to ensure the quality of their software development process, companies incorporate best practices from recognized repositories or from their own experiences. These best practices are often described in software quality manuals that do not guarantee their implementation. In this paper, we propose a framework for the implementation of best practices concerning the design of the software architecture. We treat the case of architecture design activity because it's the basis of the software development process. Our framework enables on the one hand to describe best practices and on the other hand to check their application by designers. We present an implementation of our framework in the Eclipse platform and for an ADL dedicated to Web applications. Finally, we give an example of use from the context of our industrial partner. to direct the architect toward the subset of relevant models among those allowed by the language. In this sense, BPs help the architect to limit the area of choice thanks to a language restriction adapted to the project. They help to increase the e ectiveness of development in terms of quality and productivity.Additional BPs speci c to an application domain, a technology or a managerial and cultural context may also emerge from projects within companies. Properly used in a project, these best language practices constitute the expertise and the value-added of a company. This valuable capital of knowledge guarantees to a company the quality of its architectural models and thus allows to satisfy its customers, to stand out, and to solicit labels and certi cates [11]. In other words, to be competitive.Unfortunately, we show in section 2 of this paper that due to a lack of an adequate formalism to document this knowledge, companies that try to capitalize on this knowledge use informal documents, often incomplete, poorly referenced, and sometimes scattered. This leads to an inadequate and ine ective use and sometimes loss of best language practices. This loss decrease the quality of the designed architectures. We rely for that on a study conducted with an industrial partner that uses a dedicated ADL for Web applications. We propose a language (section 3) and a software platform (section 4) that allow respectively to document and to enact these BPs for any graphical ADL. In this way, we ensure the durability and reuse of knowledge, as well as a constant veri cation of the application of best language practices. We then show, in section 5, how this language can be used to document some BPs for web applications coming from our industrial partner. In the same section, we show also how these practices can be integrated in their ADL tool (AlCoWeb-Builder). Thus, this helps developers to respect the best language practices de ned in their own companies, without changing their working habits. Finally, we describe related work in section 6 before concluding in section 7. Problem StatementIn this section, we show the interest for a company to make productive its language practices. We rely ...

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