【摘要】 Web服务业务流程执行语言(BPEL)提供了有力的技术来聚合封装的功能以及定义高质量的Web服务,然而,尽管功能强大,但是BPEL却难于使用。另一方面,有色Petri(CPNs)可以用于模拟、分析以及校验Web服务。为了在CPNs协作模型和业务流程的执行之间建立一座桥梁,给出了基于CPNs从过程模型驱动演绎出一致的BPEL代码的方法。首先,把CPNs协作模型转换为结构工作流网模型;然后,把工作流网模转换为BPEL代码,最后,通过电话机故障修理的案例研究,说明了算法的有效性。更多还原

【Abstract】 The business process execution language for Web services(BPEL)provides a powerful technology to aggregate encapsulated functionalities and define high-value Web services.While being a powerful language,BPEL is difficult to use.On the other hand,the colored Petri nets(CPNs)allow for the modeling,analysis and verification of Web services.In order to build a bridge between the CPNs collaboration model and the execution of the business processes,the CPNs based approach for process-model driven deduction of compatible BPEL code was presented.At first,the CPNs collaboration model was transformed into structured workflow net(WF-net)model.Then,the WF-net model was transformed into the BPEL code.At last,the case study of repairing telephones was provided to illustrate the applicability of the transformation algorithm.更多还原