Download Architectures for Adaptive Software Systems: 5th by Guillaume Waignier, Anne-Françoise Le Meur, Laurence Duchien PDF

By Guillaume Waignier, Anne-Françoise Le Meur, Laurence Duchien (auth.), Raffaela Mirandola, Ian Gorton, Christine Hofmeister (eds.)

Much of a software program architect’s existence is spent designing software program structures to fulfill a collection of caliber standards. normal software program caliber attributes comprise scalability, protection, functionality or reliability. caliber characteristic standards are a part of an application’s non-functional requisites, which catch the numerous elements of ways the sensible - quirements of an program are completed. knowing, modeling and consistently comparing caliber attributes all through a undertaking lifecycle are all complicated engineering projects whichcontinuetochallengethe softwareengineeringscienti ccommunity. whereas we look for superior techniques, tools, formalisms and instruments which are usable in perform and will scale to giant platforms, the complexity of the functions that the so- ware is challenged to construct is ever expanding. hence, as a examine neighborhood, there's little chance for us to leisure on our laurels, as our strategies that tackle new elements of process complexity needs to be deployed and demonstrated. To this finish the fifth foreign convention at the caliber of software program Archit- tures (QoSA) 2009 taken with architectures for adaptive software program platforms. glossy software program structures needs to frequently recon guretheir constitution and behaviour to answer c- tinuous alterations in requisites and of their execution setting. In those settings, caliber types are useful at an architectural point to lead systematic model-driven software program improvement thoughts by means of comparing the effect of competing architectural choices.

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Extra info for Architectures for Adaptive Software Systems: 5th International Conference on the Quality of Software Architectures, QoSA 2009, East Stroudsburg, PA, USA, June 24-26, 2009 Proceedings

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We also evaluated our approach and compare it against the existing stateof-the-art. The results demonstrated the effectiveness of our approach in optimizing QoS configuration in the context of a representative DRE system reusable component assembly. The following are the lessons learned from our research: • Optimal QoS configuration for component-based systems is a crucial research area that has been unaddressed till date. As component middleware gains popularity, and available resources become constrained, especially in the context of DRE systems, it is critical to improve the overall quality of the DRE system software architectures.

Löwe Current template-based model-to-text transformations do not have built-in support for tracing [5], so we need to develop our own tracing solution. The goals for our tracing solution are automation and non-invasiveness. Automation of this subtask for consistency checking allows automation of the complete consistency checking process. Non-invasiveness ensures, that tracing does not change the transformation and thereby alters the object under study. Non-invasiveness also does not allow us to patch the transformation engine, so we are independent of any particular transformation engine implementation.

2. In the third step, we use the complete analysis graph to find inconsistencies, cf. 3. 1 Analysis Graph Extraction The analysis graph is the central data structure of our approach for checking consistency, it is used in all major steps of the analysis process. The analysis graph contains only information relevant for solving the problem of consistency checking. It is a directed graph, consisting of two types of nodes and three types of edges. Nodes are either high-level, corresponding to the entities in a high-level design description such as UML class diagrams or low-level entities corresponding to source entities like compilation units or classes.

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