Workflow-based Web Service Composition,

With the increasingly drastic marketing competiton, enterprises must be able to make fast reorganization to its transaction procedures. At the same time, because the relationship between enterprises is more and more tight, the cooperation between enterprises should be more frequent. So the integration of enterprises' operation becomes an important issue which needed to solve. Web services is just the best technology for solve this question.However, the ability that web services deal with operation flow is not very good now, so I introduce workflow technology and use petri net to express the workflow model. Combining workflow with web services, I propose a workflow-based composition model architecture of web services. Finally I evaluate the model architecture with the hospital information system.