What is shown by the actor-task level of the business process hierarchy?

The actor-task level is the lowest and most detailed level of the business process hierarchy. Its purpose is to show the sequence of actions and decisions taken by specific actors to complete a process. It effectively illustrates the work conducted within each individual task (often referred to as the procedure or work instruction). This level details how the work is performed.

Option A describes the Event-Response level (mid-level).

Option C is only part of the description—the actor is crucial, but the level shows the tasks they perform.

Option D describes the trigger for the Event-Response level.

(Reference: BCS Modelling Business Processes / BCS Business Analysis Practice – Business Process Hierarchy)

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