服务的编排术 Business processes are a set of activities carried out in a sequence Services can be choreographed to implement a business process i. e. each step or activity in a business process is implemented by a service The business process itself becomes a service Service choreography is described by the Business Process EXecution Language(BPEL) A standard proposed to OASIS for process definition Service Choreography provides Processes that combine applications and people Transactionality and compensation Manipulation of process data12 服务的编排术 ▪ Business processes are a set of activities carried out in a sequence ▪ Services can be choreographed to implement a business process i.e. each step or activity in a business process is implemented by a service ▪ The business process itself becomes a service ▪ Service choreography is described by the Business Process Execution Language (BPEL) A standard proposed to OASIS for process definition ▪ Service Choreography provides: Processes that combine applications and people Transactionality and compensation Manipulation of process data