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QoS Assurance for Dynamic Reconfiguration of Component-Based Software Systems

机译：基于组件的软件系统的动态重新配置的QoS保证

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摘要

A major challenge of dynamic reconfiguration is Quality of Service (QoS) assurance, which is meant to reduce application disruption to the minimum for the system's transformation. However, this problem has not been well studied. This paper investigates the problem for component-based software systems from three points of view. First, the whole spectrum of QoS characteristics is defined. Second, the logical and physical requirements for QoS characteristics are analyzed and solutions to achieve them are proposed. Third, prior work is classified by QoS characteristics and then realized by abstract reconfiguration strategies. On this basis, quantitative evaluation of the QoS assurance abilities of existing work and our own approach is conducted through three steps. First, a proof-of-concept prototype called the reconfigurable component model is implemented to support the representation and testing of the reconfiguration strategies. Second, a reconfiguration benchmark is proposed to expose the whole spectrum of QoS problems. Third, each reconfiguration strategy is tested against the benchmark and the testing results are evaluated. The most important conclusion from our investigation is that the classified QoS characteristics can be fully achieved under some acceptable constraints.
机译：动态重新配置的主要挑战是服务质量（QoS）保证，这是为了将应用程序中断降低到系统转换的最低要求。但是，这个问题尚未得到很好的研究。本文从三个角度研究了基于组件的软件系统的问题。首先，定义了QoS特性的整个范围。其次，分析了QoS特性的逻辑和物理要求，并提出了实现这些要求的解决方案。第三，先验工作根据QoS特性进行分类，然后通过抽象的重新配置策略实现。在此基础上，通过三个步骤对现有工作和我们自己的方法的QoS保证能力进行定量评估。首先，实现了概念验证原型，称为可重配置组件模型，以支持重配置策略的表示和测试。其次，提出了重新配置基准以暴露QoS问题的整个范围。第三，针对基准测试每种重新配置策略，并评估测试结果。从我们的调查中得出的最重要的结论是，在某些可接受的约束下可以完全实现分类的QoS特性。

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  • 来源
    《Software Engineering, IEEE Transactions on》 |2012年第3期|p.658-676|共19页
  • 作者

    Li Wei;

  • 作者单位
  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
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