Interview Questions for Business Analysts and Systems Analysts

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INTERVIEW QUESTION:

What is the difference between a task and an activity in BPMN?

Posted by Chris Adams

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Categories: Business Analysis, Systems Analysis, Business Process Modeling Notation (BPMN)

ANSWER

Just like all squares are rectangles but not all rectangles are squares, similarly all tasks are activities but not all activities are tasks.

In BPMN terminology, activities represent work completed by a group or organization. A process, sub-process, or task are all types of activities. Some activities are atomic (a task) while others are not atomic (process and sub-process) since they can be further decomposed.

So you can use the generic term activity when discussing processes and work being done. But if you want to be less ambiguous in your meaning the terms process, sub-process, and task should be used.

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