Research On The Workflow Model Based On Dynamic Evolution

In the workflow management, one of the important yet open problem management is the evolution of workflow, when creating, deleting and modifying the workflow type in such a way, we should keep schema remaining correct. This problem is aggravated when instance of modified workflow types are active at the time of modification, because any workflow instance has to conform to the definition of its type.In the dynamic modification of workflow studies, researchers have explored several different techniques. These methods from a variety of point of view of the dynamic workflow modifications carried out to explore, to a certain extent to meet the requirements of the dynamic changes, but there are still low and operational flexibility, such as the shortcomings of the complex. Activities, particularly in the case of the example, the above methods there are many drawbacks.This paper presents a solution for dynamic workflow schema evolution. This solution uses the technology of the Version Control for reference and bands the two concepts together. The program introduced a new element of the modeling and dynamic architecture changes, the workflow system-level model from the structure re-division of workflow instances different versions attributed to the use of versions of the evolution of the advantages of a unified workflow management, on the basis of dynamic modification of workflow for classification, and discusses the combination of workflow strategies, methods and modify the transfer strategy, This solution bases the matured workflow technology, presents the workflow version. At the end, this paper focuses the correct evolution when changing the workflow type.