Based On Rbac In Workflow Platform Design And Development

With the development of software reuse, people found that domain specified software component would be reused more easily. Domain variability can be described from five dimensions of organization, functionality, data, presentation and process connection, because of its special advantage on controlling process connection variability, the technology of workflow has been becoming a hot topic in IT research field .Specially, with the great development of National Informational project, workflow would be the key technology to resolve the OA problem in enterprise information field.Workflow technology was originally used in Europ_American countries whose information were highly developed, and lots workflow product and prototype system have been produced at the time. But these systems can' t satisfy the requirements , because of the special domain variability and customized requirements of the users . To satisfy the special requirements of domain, it was necessary to develop an enterprise information specified workflow management system.Aiming at Broadcast_Television field, this thesis studied the key technologies of workflow, the main research work and achievements include:1. Workflow ModelBased on the practical experiences, aiming at Broadcast_Television field, the thesis modified and extended the reference model of WfMC, and bring out our model which called Based on Role Management Workflow (BRMWorkFlow).From the aspect of process model (version 1. 0), BRMWorkFlow separated the transfer rules from the activity in reference model and produced the concept of connector, which apart the process logic from function module, so BRMWorkFlow is more flexible. And due to the practical experiences, lots of extensive concept such as "multiple instance" activity was brought out, which farther enhanced the adaptability of the model.From the aspect of activity model, based on the concept of "role" and "users" , BRMWorkFlow supported the concept of "Group" , not only satisfied the requirement of Broadcast_Television field, but also controlled the variability of organization well.From the aspect of data model, BRMWorkFlow supported the concept of model data, process data and activity data, besides, it supported complicated data...