Which PRINCE2 principle is being applied when the Project Manager escalates a forecast tolerance deviation to the Project Board?
Management by exception sets tolerances and requires escalation when they are forecast to be exceeded.
Why this answer
The 'manage by exception' principle is applied when the Project Manager escalates a forecast tolerance deviation to the Project Board. This principle delegates decision-making authority for day-to-day management within defined tolerances, and only escalates when those tolerances are forecast to be exceeded, ensuring the Project Board focuses on strategic oversight.
Exam trap
PeopleCert often tests the distinction between 'manage by exception' and 'manage by stages', where candidates mistakenly think escalation relates to stage boundaries rather than tolerance deviations.
How to eliminate wrong answers
Option A is wrong because 'learn from experience' focuses on capturing and applying lessons throughout the project, not on escalation of tolerance deviations. Option B is wrong because 'focus on products' emphasizes defining and delivering products with agreed quality criteria, not on escalation of tolerances. Option D is wrong because 'manage by stages' involves planning and controlling the project in stages, but the escalation of a tolerance deviation is a direct application of 'manage by exception', not stage management.