单项选择题
The（1） is a general description of the architecture of a workflow management system used by the WFMC, in which the main components and the associated interfaces are summarized. The workflow enactment service is the heart of a workflow system which consists of several（2）.
空白（1）处应选择（）
A.waterfall model B.workflowreference model C.evolutionary model D.spiral model
单项选择题 （）is the process of obtaining the stakeholders’ formal acceptance of the completed project scope.Verifying the scope includes reviewing deliverables and work results to ensure that all were completed satisfactorily.
