Workflow-based Process-level Enterprise Application Integration

The key that business enterprise competition promotion lies in the process optimized and process automation that business handles, which request more attention to enterprise application integration, and the research of Enterprise Application Integration now gain the focus of enterprises and research institutes. This paper synthetically analyses the current state and the future trends of Enterprise Application Integration, deeply study the hiberarchy and the related technology of EAI, and point out that Process Integration is at present the main requirement of heterogeneous Enterprise Application Integration.By studying and deeply understanding of the theory of workflow and examples of EAI put forward a new solution to implement Process Integration of EAI by workflow. To the problem that bad interoperation and agility of current workflow management system and workflow based EAI, this paper propose a framework supporting Process Integration of EAI based on Sub-flow Task Model and Multi-Tiered Dynamic State Transition Model, four major components are defined: The workflow engine, Adapter, Service Interface Repositories and XML messages.Directed by the above theory, we implement the Integration between PDM and ERP of Sany Group and discuss the technology of workflow and the design of workflow engine from the point of view of developer.This article is valuable for the enterprise especially for the manufacturing workshop to implement the EAI.