What causes replanning of the project scope?

In accordance with the PMBOK® Guide, specifically within the Monitor and Control Project Work and Perform Integrated Change Control processes, Change requests are the primary drivers for replanning.

Mechanism of Action: When a change request is submitted and subsequently approved by the Change Control Board (CCB) or the Project Manager, it often necessitates modifications to the project management plan. This includes updating the scope baseline, schedule baseline, and cost baseline.

The Workflow:

A deviation is identified or a new requirement is requested.

A Change Request (Output of many monitoring/controlling processes) is generated.

Once approved, the change request becomes an Input to the Direct and Manage Project Work and Plan processes, triggering the " replanning " cycle to incorporate the new scope.

Comparison with Other Options:

Project document updates (A): These are the result of the change process, not the initial cause of the replanning.

Project scope statement changes (B): Similar to option A, the scope statement is a document. You don ' t change the document to cause replanning; you process a change request which then updates the document.

Variance analysis (C): This is a tool and technique used to identify that a change or replanning might be necessary, but the analysis itself does not authorize or cause the replanning; the subsequent change request does.