Research On States Monitoring Model Of Cooperative Workflow Engine

Taking cooperative work platform service system as background, with guidance from the methodologies of Object-Oriented Programming and Component-Oriented Programming, combined with cooperative work methodology, this paper discusses exception detecting and handling problem of cooperative work platform, and a states monitoring model based on event is put forward; Software architecture description language ACME is adopted to describe the model, architecture method of Design Pattern is used to optimize its software Architecture.First, research field and key technologies of cooperative work is introduced, and cooperation, negotiation and monitoring model is analyzed, researched and summarized. Secondly, the key technique of states monitoring and exception handling of cooperative work platform is discussed. Mainly, the monitoring mechanism which is used frequently and Exceptions that the system may occur is analyzed and discussed. And the monitoring strategy of this system is put forward. Then, states monitoring is analyzed and designed on the domain. In the phase of domain analysis, the requirement of state monitoring is abstracted and described; And states monitoring theoretic and function of every unit is expatiated, states monitoring method based on event is expounded; The use case model and activity model are created. In the phase of domain design, object structure model and object behavior model is constructed; also Design Pattern is used to optimize and design. At the end of this paper, the configuration and implementation is given. Based on ACME representation, the typical implementation of states monitoring software Framework is put forward.The conclusions and the methodologies that summarized in this paper are used in project research and implement well, it standardize the software development and make the procedure efficiency. The given methodology of model and software framework is of great theoretical meaning and engineering practicing value.