Design And Implementation Of Distributed Workflow In Digital Collaborative Platform

In recent years,with the improvement of enterprise informatization,people are no longer satisfied with the construction of a single information system.For the long-term development of enterprises,a unified digital collaborative platform needs to be established.To realize digital collaboration,different systems of different places,cross-systems and even cross-enterprises combine to form a complete and unified business system,covering all business processes of enterprises.However,"isolated island" phenomenon of information systems is more serious in many enterprises now,business systems between various departments in the enterprise or enterprise-to-enterprise lack flexibility and interoperability.In order to solve these problems and improve the work efficiency,enterprises generally use the technology of workflow.But because of the workflow scattered in different business systems,independent business system goes its own way,and the workflow can't completely corresponding with flexible business process.In order to solve this problem,under the premise of protecting the original information system construction investment,this thesis try to apply distributed SOA architecture to the enterprise,reconstruct the existing workflow engine in a less influential way,and complete data exchange of the workflow engine interfaces and integration of the workflow services in various business systems by application integration platform(ESB).By integrating and coordinating the operation of embedded workflow engines distributed in various business systems,it can reduce the construction difficulty of SOA architecture,form a set of complete operation system for business process,and get through the whole business process workflow such as enterprise design,manufacturing,production and service.The main research work of this thesis is as follows:(1)This thesis compares and analyzes the latest development of digital collaboration platform,SOA architecture and workflow.In order to solve the discrete problem of current enterprise workflow,the distributed workflow technology is analyzed and integrated with SOA architecture.(2)This thesis researches the model for integration of embedded workflow engine distributed in different business systems based on application integration platform(ESB).Through the application of SOA architecture,the workflow engine service in the existing business system is reformed,and the workflow is realized that extended and interacted among different engines and systems.(3)This thesis studys the application of this model in a group digital collaborative platform project,design and implement distributed workflow based on application integration platform(ESB).By Adopting Web Service technology we integrate embedded workflow engine services in TeamCenter,MES,ERP,QMS,OA,MDM and other business systems and build a digital collaborative platform that is efficient,Shared,secure and able to eliminate information islands.In the process of design and implementation,the distributed workflow based on the ESB platform is discussed about terms of business and function requirements analysis,system framework and database outline design,core function and adapter detailed design,development and implementation.