Abstract: Research on WFMS architecture mostly focuses on concrete application presently,and there is no a complete and general WFMS architecture.Though workflow Management cooperation have developed standards for WFMS,it only concerns abstract top WFMS architecture,and does not include detailed software architecture.In this paper,we,using a top-down design strategy,provide a complete and general WFMS architecture.We divide WFMS into three modules:workflow design,workflow server and workflow clients,which all are designed in detail.Furthermore,we design extension modules to extend system function in heterogeneous environments,and standardize the interfaces between WFMS and other platforms to overcome negative effect of mobile workflow client,so as to ensure flexibility and extensibility of WFMS.

Key words: workflow management, workflow management system, system architecture