计算机科学 ›› 2015, Vol. 42 ›› Issue (9): 127-133.doi: 10.11896/j.issn.1002-137X.2015.09.024
焦扬,陈 喆,梁员宁,李东星
JIAO Yang, CHEN Zhe, LIANG Yuan-ning and LI Dong-xing
摘要： 针对云服务组合的QoS量化评估方法进行了研究。基于组合云服务环境中虚拟动态性和服务随机性的特点,提出了基于BPEL流程的云服务组合实现框架；在随机Petri网理论的基础上建立了组合云服务流程网模型(CCSPNet),进而应用马尔可夫过程对其进行性能评估,提出了云服务组合的六维QoS评价体系,并结合CCSPNet模型提出了云服务组合的QoS定量评估方法。通过应用实例分析表明,提出的方法具有较好的动态适应性和灵活性,能有效满足云服务应用环境的QoS评估需求。
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