A Web-Based Distributed And Sharing Database Workflow Management System DFlow

As the distributed programming skills becoming more and more wonderful, itturns the various department of one company to work together to truth and to moreextent to improve the information flowing between the department. As the result, theproductivity was improved to more extent. As the enterprise currently need more andmore information to be disposed, the problem of how to manage work flow arises.This management system is aid to dispose the change of the work flow. The paper proposes a workflow management system, this system use Web As theway of client to visit engine. This can to more extent to facility users to use the system.Because the XML is a strong data description language, this system use it to defineworkflow. Through a XML analyzer to analyze the workflow XML file and pass theresult to engine through activity unit. The engine use the activity XML file'sinformation to execute the task designed by the workflow designer. Of course in thedistributed programming transferring message is a vital skill. As the JMS skill is highefficiency message management middle component. So this system use it tocorrespond the message transferring between the threads of engine. The first part of this paper mainly introduce the character of the workflowmanagement and currency development and international standard . Inaddition ,simply introduce the vital skills which was needed to realize this kind ofsystem. The second chapter mainly introduce the structure and the composing of theworkflow management system and every component's use in the system and thetransfer of data between various component and the interface. In addition, alsointroduce the element of workflow unit model. In addition, particularly introduce the workflow system DFlow proposed by thispaper's function distribution architecture and the relation between various parts. Itcomprise of client flow define tools, console management tool, form role design tool,workflow engine design ways and realization. In the third chapter, introduce workflow's model and define, introduce the waysand format using XML model tools to descript every kind of task type. Also descriptthe WPDL and the tools which be used to define workflow.At the end, sum up the current develop state of workflow management systemand point the workflow management's develop aspect and the application of theworkflow management system.