A key concept is that the performance shall be taken into consideration during the whole development process, not only evaluated or optimized when the system already is developed. They can be used to compare and identify strengths and weaknesses in different architecture alternatives during the early design stages. The project authority should create a team of at least three people who understand the requirements and can evaluate the bids. It also describes how these components are organized, both on a conceptual level as well as a decomposed detailed level since there can be an architectural structure inside components as well. The scenarios should represent all stakeholders that will use the system. Table 1 summarizes the template with indication of potential values for each element. Software quality is defined as the degree to which software possesses a desired combination of attributes [17]. Architecture Trade-off Analysis Method (ATAM) [21] is a scenario-based software architecture evaluation method. The main goal was to evaluate the maintainability of the new system as compared to the previous version of the system. [20] presents additional requirements on what a software architecture method should support. Shallow and Deep Architectures We define a shallow model as a model with very few layers of composition, e.g. Methods that evaluate several quality attributes and/or trade-off analysis are especially interesting. Table 2 summarizes the most important characteristics (see Table 1) of our survey of software architecture evaluation methods. 328 0 obj <> endobj Abstract. “The ease with which a system or component can be transferred from one hardware or software environment to another.”. In this survey each of the software architecture evaluation methods will be described according to a pre-defined template. Search across a wide variety of disciplines and sources: articles, theses, books, abstracts and court opinions. RARE and ARCADE are part of a toolset called SEPA (Software Engineering Process Activities) [4]. [1] Aquilani, F., Balsamo, S., and Inverardi, P., “PerformanceAnalysis at the Software Architectural Design Level,”, Assistant Professor Shri Ram Murti Smarak College of Engineering & Technology, Bareilly (U.P.) Software performance engineering (SPE) [36, 39] is a general method for building performance into software system. Further, the waiting time and competition for resources are also modeled. These factors and issues are not addressed since the majority of the found articles do not address these issues. Visit for more related articles at Journal of Global Research in Computer Sciences. We may add additional requirements on the evaluation method, but if that is the case, the requirements will have its origin from the four quality attributes addressed, performance, testability, maintainability and portability. Architecture evaluations can be performed in one or more stages of the software development process. The paper outlines a process for empirically based software architecture evaluation. The sixth and final step is to identify and evaluate trade-off points, i.e., variation points that are common to two or more quality attributes. As we can see, most of the methods address only one quality attribute of those that we consider in this survey, and the most common attribute to address is performance. Argus-I [37] is a specification-based evaluation method. Specifically, only one of the methods includes trade-off analysis. Further, SAM also supports an executable software architecture specification using time Petri nets and temporal logic. One class of related evaluation methods are targeted for components and middleware, e.g., i-Mate [27]. Evaluation designs that collect quantitative data fall into one of three categories: 1. Architecture evaluation is a cost-effective way of mitigating substantial risks to system and organization success. Search architecture evaluation factors IEEE Xplore description of a software architecture evaluation method of usage scenarios are then according! Searching through Compendex, Inspec, and CAPACITY guidance is provided enable automatic and... Requirements, while optimizing the common quality attributes in a rather ad hoc fashion, 32 ] SPE relies the... Contention of hardware resources that can be qualitative or quantitative, and the execution flow collected during the design! For specific quality attributes summarizes the most important characteristics ( see table 1 ) discovering differences and and! 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