中文摘要：

面向服务的体系结构（SOA）具有动态与协同的本质特点，这给软件可靠性研究与实践提出了新的挑战，从而产生了面向服务的软件可靠性（SOSR）这一新的研究领域．本文首先对SOSR的发展背景和研究现状进行了综述；然后从可靠性建模和可靠性评估两个方面归纳出SOSR当前所面临的主要问题；最后，以传统基于体系结构的软件可靠性模型为基础，探讨了由单个服务、服务池和服务组合三个层次迭加而成的SOSR建模与评估框架，以及服务可靠性建模方法、服务池容错机制和服务在线监测等关键技术．

英文摘要：

Service Oriented Software Reliability （SOSR） is an emerging research area, since dynamic and collaborative nature of Service-Oriented Architecture （SOA） presents new challenges to traditional software reliability research and practice. This paper analyzes the unique reliability research problems of SOA from two perspectives： reliability modeling and reliability evaluation, and surveys the state-of-the-art software reliability techniques. Based on the traditional Architecture-Based Reliability models, the paper proposes a new framework for modeling and evaluating SOSR on three levels： single service, service pool and service composition. It also discusses the key techniques for service reliability modeling, service pool fault-tolerant mechanism, on-line service monitoring, service reliability testing, operational profile, and SOSR evaluation.