A Workflow Engine Design And Realization

Workflow engine has in many industries have been extensively applied. The system design of the workflow platform is consideration to the school each demand; Focuses on key process; In a standardized organizational and authorization for the premise condition, Establish a suitable most schools of standardized procedures, Establish a uniform, centralized, flexible expand IT systems to support the standardization business process. Project dedicated to developing below five teams processes: scholarship for examination and approval process, teaching certificate approval process, examination and approval procedure, outstanding graduate diploma examination and approval procedure, join community procedures. According to the system's business objectives, combining the system status and business requirements, the design of the system will be the first to conform to the requirement to SOX remain consistent, secondly system architecture principle will follow the SOA design concept, to achieve business components as the foundation, the various components of the framework between loose coupling way. Architecture design based on the overall structure, with the basic principle of service for support, level portal provides one-stop integrated and basic services, vertical portal can satisfy the operation demand business functions.This thesis tells design and realization method of NCWF flow engine, and the processes used in actual workflow system, so as to realize basic workflow process definition, tasks, item management, process flow and flow rights management, and other functions.Flow engine with business between functions through flow engine service interfaces interact, by business interface and operation service call. Flow circulation rules through XML format data definition, support, updates version process function at the same time. Process definition about ShenPiRen, procedures such as the operation interface, can according to business requirements realization of different business logic, through the process definition configurations, consequently meets the business requirements of the expansibility. And different can realize the basis of the need for combinations and reuse.NCWF workflow engine is characteristic of will manifest and process, separate data and process separated. Flow engine itself does not rely on with business data, but independent of personnel and organizations of data structure, which makes this flow engine can support the use of different customers, in this engine above their respective development business code to realize the user needs of the business.