一种面向服务的软件自调节方法.docVIP

 一种面向服务的软件自调节方法 姜拓* （哈尔滨工程大学计算机科学与技术学院，哈尔滨 150001） 5 10 15 20 25 30 35 40 摘要：在动态、开放和个性化的网络平台上，软件容易受到环境变化和用户需求改变的影响， 如何使软件系统具有自调节能力逐步成为当前研究的一个热点。本文在软件自调节技术研究 的国内外基本现状的基础上，采用面向服务技术，提出面向服务的软件自调节方法。本方法 首先给出了软件自感知方法，该方法能够更加准确的判断和预测软件的运行状态，其次，在 保证服务匹配和服务加载满足系统一致性问题的前提下，通过服务匹配与服务装载完成软件 的自调节，使软件系统具备全局自调节的能力。最后，对提出的面向服务的自调节方法进行 了仿真实验，实验结果表明本方法达到自调节的效果。 关键词：计算机软件；服务；软件行为；自感知；软件自调节 中图分类号：TP311.1 A service based on software self-adjusting method Jiang Tuo (Harbin Engineering University College of Computer Science and Technology, Harbin 150001) Abstract: The software is easily affected by the change of environment and the user requirements in a dynamic, open and personalized network platform. That how make the software system have the ability of self-adjustment becomes a hot spot of current research. Using oriented service technology, this article puts forwards a software self-adjustment method of oriented service base on the basic present situation of technical research which is of the software self-adjustment at home and abroad. Firstly, this method gives the soft self-sensing method which can judge and forecast the operating condition of software more accurately. Secondly, under the premise of ensuring service matching and service loading meet the consistency problem of system, we can complete the software self-adjustment by means of service matching and service loading and make the software system have the ability of the global regulation. Lastly, we take the simulation experiment for the suggested oriented service self-adjustment method, the experimental results show that the present method can achieve the effect of self-adjustment. Keywords: computer software; service; software behavior; self-sensing; software self-adjustment 0 引言 在动态、开放的环境中，软件系统自调节能力通常是指，系统具备感知环境变化并能够 作出结构、行为等动态调整的能力。自调节系统的研究和开发刚刚起步，如何有效地对自软 件系统进行规约、分析、设计和实现是软件工程面临的一项重要挑战。 所谓自调节(self-tuning)就是软件能够对环境变化自我感知，并采取适应性动作来调整自 身行为、容忍系统错误，从而将系统所提供服务的功能或性能维持在一个令人满意的水平上 的能力[1]。本文从面向服务的角度出发，在面向构架的自调节方法的基础上，借鉴能良