题目内容
（请给出正确答案）
[主观题]
● The （71） is a general description of the architecture of a workflow management system us
ed 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 （72）.
（71）
A. waterfall model
B. workflow reference model
C. evolutionary model
D. spiral model
（72）
A. workflow engines
B. processes
C. workflow threads
D. tasks
提问人：网友zhao_qinghua
发布时间：2022-01-06
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