Role Modeling And Parallel Research Based On Workflow Management System

In the process of workflow management system's development, the theory about workflow management system continuously was enriched because of the organization WFMC standard.However,some of the WFMC standard itself has several inherent deficiencies, so in actual software system components, it is necessary to reform and perfect it.This paper made some suggestions to improve the workflow modeling methods and workflow engine building.In many ways of workflow modeling, the common method is the use of role modeling and Petri net.And the workflow modeling based on the role has two aspects, one is organization modeling, the other is resource access modeling.At present, most of the information system software is in the transition period from the intermediate stage to the advanced stage, and the workflow management system is the technical foundation in this stage, moreover,the workflow engine is the core component of the workflow management system. Therefore, the parallel workflow engine can greatly improve the efficiency and the complex handling capacity of workflow management system.Based on the users organizational structure and Mandate authorized the paper's research had following research:1. The paper introduced two modeling, one is workflow organization modeling based on role, the other is task authority modeling, it separated the users and the authority in the system, and it treated user's authority and competence partly;2. At the same time it improved the workflow process definition model by Petri net and the role and organization of the unit the mapping.3. Parallel working environment workflow engine of the transformation;4. The way of problem separate and communications analysis in Parallel workflow engine;5. How to mix and how to map;6. Workflow management system based on functional decomposition analysis and routing of the parallel transformation;In the research project of parallel work flow management system ,First of all ,a set of order routing into a parallel routing method has been taken out ,which based on the use of role modeling and Petri nets. It improved the workflow process definition tools in order to achieve a parallel system, while described the parallel workflow engine's scheduling strategy, distribution strategy and mapping strategies in detail. In order to achieve the real workflow management system, in the final paper presents a practical application in the development of the software engineering approach for the development of projects, and in each stage provides a clear delivery of results, standards and other activities.