General framework for the description of QoS in UML

M. D. Miguel
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引用次数: 9

Abstract

UML is useful for modeling object-oriented systems, their behavior and interaction. However, UML currently does not support the modeling of quality of service (QoS) criteria, such as the reliability and accuracy (i.e., quality). A QoS framework provides support to ensure consistency in modeling various qualities of service. It supports a general categorization of different kinds of QoS; including QoS that are fixed at design time as well as ones that are managed dynamically. And it supports the integration of different categories of QoS for the purpose of QoS modeling of system aspects. Frequently the behavior of a system component is functionally correct, but the result it generates is nevertheless unacceptable because the result does not meet some QoS criteria. One way to enhance the capability of the system to deliver results of acceptable quality is to use flexible components that adapt their behavior depending on the resources available and the QoS required.
用UML描述QoS的通用框架
UML对于建模面向对象系统及其行为和交互非常有用。然而,UML目前不支持服务质量(QoS)标准的建模,例如可靠性和准确性(即质量)。QoS框架提供支持,以确保建模各种服务质量时的一致性。它支持对不同类型的QoS进行一般分类;包括在设计时固定的QoS以及动态管理的QoS。它支持集成不同类别的QoS,以便对系统方面进行QoS建模。通常,系统组件的行为在功能上是正确的,但它生成的结果仍然是不可接受的,因为结果不符合某些QoS标准。增强系统交付可接受质量结果的能力的一种方法是使用灵活的组件,这些组件根据可用资源和所需的QoS调整其行为。
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