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 satisfy a suite of caliber necessities. basic software program caliber attributes contain scalability, safeguard, functionality or reliability. caliber characteristic requisites are a part of an application’s non-functional requisites, which catch the numerous elements of ways the useful - quirements of an program are completed. realizing, modeling and always comparing caliber attributes all through a venture lifecycle are all advanced engineering projects whichcontinuetochallengethe softwareengineeringscienti ccommunity. whereas we look for more advantageous methods, equipment, formalisms and instruments which are usable in perform and will scale to massive platforms, the complexity of the functions that the so- ware is challenged to construct is ever expanding. therefore, as a learn neighborhood, there's little chance for us to leisure on our laurels, as our recommendations that handle new facets of procedure complexity has to be deployed and verified. To this finish the fifth overseas convention at the caliber of software program Archit- tures (QoSA) 2009 fascinated about architectures for adaptive software program platforms. sleek software program platforms needs to usually recon guretheir constitution and behaviour to answer c- tinuous alterations in requisites and of their execution setting. In those settings, caliber types are necessary at an architectural point to steer systematic model-driven software program improvement ideas by way of comparing the effect of competing architectural choices.
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Additional 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
6 of our Real-time LwCCM middleware called CIAO was used running on Redhat Fedora Core release 4 with real-time preemption patches. The processes that hosted BasicSP components were run in the POSIX scheduling class SCHED_FIFO, enabling first-in-first-out scheduling semantics based on the priority of the process. To showcase our results, we first modeled the BasicSP scenario and generated the deployment and configuration metadata for each of its components. Note that the metadata is generated using the model interpreters that encapsulate appropriate bin packing and schedulability analysis techniques.
The developers can thus focus on application business logic, and use our approach to optimize the QoS configuration. Further, the model transformation rules are reusable and can be applied repeatedly, during application development, and maintenance thereby addressing the accidental complexities. 4 Evaluating the Merits of the Transformation Algorithm This section evaluates our approach to optimizing the original deployment and configurations for component-based DRE systems. We claim that the quality of the resulting software architecture is improved if it is able to demonstrate an improved performance.
Further, the model transformation rules are reusable and can be applied repeatedly, during application development, and maintenance thereby addressing the accidental complexities. 4 Evaluating the Merits of the Transformation Algorithm This section evaluates our approach to optimizing the original deployment and configurations for component-based DRE systems. We claim that the quality of the resulting software architecture is improved if it is able to demonstrate an improved performance. 1. We show how the end-to-end latency results after applying our algorithm achieves considerable improvement over the existing state-of-the-art.
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 by Guillaume Waignier, Anne-Françoise Le Meur, Laurence Duchien (auth.), Raffaela Mirandola, Ian Gorton, Christine Hofmeister (eds.)