Based On The Bpel4ws Workflow Engine

The dynamic multiple marketing has currently globalized the competition between enterprises. The methods of taking advantage of the access provided by advanced technology to seize the chance and to develop new products are of significant importance to win the game. Companies can reply sensitivly to the unpredictable and changeful marketing requirement in the condition of the highly integration of high-quality employees, flexible organization and advanced dynamic producing technology to achieve large economical benefit in the long run. Workflow split the applied logic and procedure logic. The facility of a system can be refined easily by mere change of the procedure model and the stabilization of function implementation, ensuring prompt response to the reasonably organized enterprise information, application tools and human resources.With the developing of IT technology, workflow products and technology keep growing and transforming. For example, workflow has conversed from supporting single workgroup environment to the distributing enterprise's working context, the workflow was embedded into enterprise software package, integrating transaction management, security management, importing J2EE and .net technology into workflow, etc. . However, there are a lot of obvious defects in workflow technology currently available. It is manifested that different workflow product provided by different developer can not be inter-operated, with lack of supporting to distributing environment with different architecture, the immaturity of workflow modeling technology and shortage of an uniform specification.Useing SOAP (Simple Object Access Protocol) that is based on HTTP as communication protocols, Web Service's architecture is founded on XML, which makes definition and implementation of workflow very convenient. Web Service is a new platform on which an inter-operating distributed application system can be developed. Web Service is a serial specification that defined how the application implement inter-operates on Web. It can be written by any language or on any platform only if being queried and accessed according to Web Service criterion. The BPEL4WS...