WS-BPEL （Web Service Business Process Execution Language）, as an emerging workflow standard, provides a simple and effective way to construct Web Services-oriented workflows. However, to the best of our knowledge, f...WS-BPEL （Web Service Business Process Execution Language）, as an emerging workflow standard, provides a simple and effective way to construct Web Services-oriented workflows. However, to the best of our knowledge, few effort from the industry and academia has addressed the dynamic change problems of BPEL process. This paper proposes a reflective approach to solve this problem. In this paper, a formal meta-object model of process instance is defined; the behavioral consistency criterion based on this model is proposed; a set of modification primitives are given to modify the meta-object while keeping the change atomic and consistent; and in addition, the MOP is offered to provide the programming interfaces for dynamic BPEL process change.展开更多
基金the National Natural Science Foundation of China(60473066, 60773006)the National High Technology Research and Development Program of China(863 Program)(2006AA012168)
文摘WS-BPEL （Web Service Business Process Execution Language）, as an emerging workflow standard, provides a simple and effective way to construct Web Services-oriented workflows. However, to the best of our knowledge, few effort from the industry and academia has addressed the dynamic change problems of BPEL process. This paper proposes a reflective approach to solve this problem. In this paper, a formal meta-object model of process instance is defined; the behavioral consistency criterion based on this model is proposed; a set of modification primitives are given to modify the meta-object while keeping the change atomic and consistent; and in addition, the MOP is offered to provide the programming interfaces for dynamic BPEL process change.
