● The (71) is a general description of the architecture of a workflow managemensystem used by the WFMC, in which the main components and the associated interfaces arsummarized. The workflow enactment service is the heart of a workflow system which consistof several (72) . In a workflow system, a process is specified using the process definitio tool. Usually, processes are defined in terms of a (73) , which consists of (74)indicated using a circle, and (75) shown as a rectangle. These two components can blinked by means of a directed arc.
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