The 'Managing a Stage Boundary' process occurs at the end of a management stage. One of its key activities is 'Update the project plan'. This activity involves recording the actual performance from the stage that has just completed. The Project Manager updates the Project Plan with the actual time and costs incurred and the products completed. This provides the Project Board with an accurate, up-to-date view of the project's overall progress against the original baseline, which is essential for them to decide whether to authorize the next stage.

B. Naming specific Team Managers is too detailed for the Project Plan. This level of resource assignment is typically handled in the Stage Plan or the Work Package description.

C. Updating the Business Case is a separate and distinct activity within the 'Managing a Stage Boundary' process. It is not part of the 'update the project plan' activity.

D. Work Package tolerances are defined by the Project Manager when authorizing a Work Package during the 'Controlling a Stage' process. They are not included in the high-level Project Plan.

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1. AXELOS. (2017). Managing Successful Projects with PRINCE2® 6th Edition. The Stationery Office (TSO).

For Correct Answer (A) and Explanation: Section 19.4.2

'Update the project plan'

states: "The project manager should update the project plan to show the actual progress from the stage just finishing and the forecast for the remainder of the project." (p. 222).

For Incorrect Option (C): Section 19.4.3

'Update the business case'

is listed as a separate activity immediately following 'Update the project plan'. This confirms they are distinct actions. (p. 222).

For Incorrect Options (B & D): Appendix A.19

'Project Plan'

details the composition of a Project Plan. It does not include specific named resources like Team Managers or tolerances for individual Work Packages

confirming these are at an inappropriate level of detail for this document. (pp. 362-364).