Business process management notation (BPMN) is an initiative to increase standardization within process modeling. What are the principles of BPMN, and what is the value of BPMN to vendors and organizations using business process modeling?
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the events puts constraints on the processes, and these constraints can be messages, timers, links, rules, exceptions, or even multiple triggers. Activities are represented by a rectangle, and indicate work performed. An activity can be a business process, sub-process, or task. They all have the same shape—it is only the order in which they appear (or a small indication within the shape, such as a plus sign [+]) that differentiates the activity as a process, sub-process, or task. In this way, different