Processes Generate Patterns Of User-oriented Goals

Workflow technology is the core technology to achieve business process automation, it is rational use of available resources, improve work efficiency, process automation and process control, and other advantages. Web service is a new distributed applications, it has strong interoperability, the new service demand integration, through packaging reduces complexity and easily achieve system operating among each other, and other advantages. Workflow technologies and Web service technology trends indicate that the two technologies will be fully integrated to provide user with a higher level services.In the face of numerous immediate service requests, on the basis of the existing Web services, How automatically or semi-automatically generated process that meet users goals becomes a research hot in the information field.This paper combine both character of Workflow technology and Web service technology, synthesize both advantage of existing process modelling methods and process dynamics generated methods,On this basis, proposed a users' goal-oriented process generating pattern.Process is divided into three levels of abstract processes, specific processes and executable process, on the basis of expanded existing Web service environment in the semantic method,provide user with a process that meet users goal through process modeling and adjust based on Petri net,automatically generated partial flow,dynamically services binding ,process optimization adjustment and process format conversion steps. Firstly, this paper introduced to the design thinking of this pattern, the overall structure, the overall flow and some basic concepts. Then, on the basis of restrictions and expand of Petri net,introduced to a new process modeling methodology based on Petri net,design a lightweight Petri net describing language(LWPNDL). Subsequently,explain how an abstract process generated specific process through services compose and process optimization adjustment steps,design services compose algorithm (BackWard Link Algorithms,BWLA), and...