Research And Design Of Distributed Workflow Management System Based On .Net

With rapid development of computer networks, the construction of enterprise information system is subjected to more and more challenge. The workflow technique can apply to business process reformation and management, it takes more vitality to the construction of enterprise information system. The distributed workflow comes in for more attention by the high efficiency of its distributed performance of business process, high credibility of redundancy performance, flexible share of resources and information. The interoperability of distributed workflow management system also gets more and more attention.To build a distributed workflow management system based on .Net is the main content of the thesis; the research and practice based on the distributed workflow management system are discussed.First, the thesis introduces concepts of workflow, workflow interoperability of distributed workflow management system, and realization technology of distributed workflow management system, then compares the merit and shortcoming of various realization technique. Author researches the current popular workflow management system of open source, analyses enterprise application, and designs node cooperation mechanism of distributed workflow management system, the mechanism has autonomy, coordination, and parallelism characteristics. Based on analysis of workflow process language BPML, XPDL and BPEL, Author realizes distributed process definition model of the finite state machine. Combining application case of .Net and the distributed development technique--Remoting technique, Author designs and realizes the prototype of distributed workflow management system based on the .Net. The thesis shows particularly the design of the process model, structure of workflow engine, operation mechanism of workflow engine, the task assignation of the engine, move mechanism of distributed process.Finally, according to the distributed workflow management system prototype and business process analysis of the railroad special goods conveyance management system, author applies representative conveyance process to the distributed workflow management system, realizes simple application and verification of this prototype. The thesis provides valid solution for enterprise workflow application based on . Net.