Design And Study Of The Office Automation System Based On Web-Cooperative Workflow System

Workflow technology, supported by information technology, provides a whole framework to facilitate the analysis, establishment, management, simulation and enactment of process models for the actual business processes, and becomes one of the crucial technologies for contemporary enterprises in implementing the control and management of workflow technology. CWfS takes advantage of the advanced technology concerning computer software, net ware and communication, and also uses the advanced management and the humanities at home and abroad for reference, which further promote corporations' running, managing and monitoring. With the rapid growth of Internet usage and development of Web technologies, the CWfS based on web provides an ideal platform for the professional work between heterogeneous environments and commercial affairs between corps, of which have some key technological characteristics of the next-generation workflow system including the standard on data exchange and member technology based Web Service. In order to further advance the applicability of workflow technology, this thesis focused on topics about workflow modeling and Interface, and contributes the theory approaches and implementation methods as a result. With expounding CWfS, This thesis provides a method of designing and implementing on the definition model based on XML process and the workflow Interface model. The research is meaningful for the improvement of the application of information technology and kernel competence for enterprises in our country.Firstly, information about the growth of workflow technology is briefly represented, the development tendencies of workflow technology are summarized and also the reference model of workflow management system is discussed. COM+ technology, an enterprise level distributed software development technology, which is fundamentally used in the implementation of the workflow system, is also introduced.In the aspect of workflow modeling, this thesis introduces aworkflow management model based on XML which is capable of tackling the problems related to business events based on synchronization, multiple activity instances, service type activities. Such favorable features are approached by extending the traditional activity network model with modeling constructs, such as wait connectors, parallel blocks, services and modification blocks. Practical examples show that the model has significant advantages like strong expressive power, flexible modeling methods, and clear and concise model structures.In the aspect of workflow enactment, a realizing architecture of COM+ based distributed workflow system which can achieve the isolation of application, logic and data by an N-tier framework is represented. The performances in reliability, scalability and practicability of the workflow system based on this architecture are further investigated.On the end, the application of CWfS over XML and Web Service shows that it is applicable for the managements of enterprise business processes. Then, the implementation of CMfS is discussed with a practical example to illustrate the usage and the employment method.