Which is one of the six aspects of project performance to be managed?

PRINCE2 defines six aspects of project performance that must be managed to ensure the project is successful. These are costs, timescales, quality, scope, sustainability, and benefits. Tolerances are set for each of these aspects to enable management by exception. 'Timescales' is one of these six core performance metrics, focusing on whether the project is on schedule to meet its deadlines. The project manager monitors performance against these targets and escalates any forecast deviation beyond tolerance.

A. Efficiency: This is a general business metric and a potential benefit, but not one of the six specific performance aspects defined by PRINCE2.
C. Estimate: Estimates are used to forecast performance (e.g., cost and time), but 'estimate' itself is not a performance aspect to be managed.
D. Work: This is too general; 'scope' is the specific PRINCE2 performance aspect that defines the products and work required.

- AXELOS. (2023). Managing Successful Projects with PRINCE2 (7th ed.). TSO (The Stationery Office). Section 4.2.4, p. 34.

- AXELOS. (2023). Managing Successful Projects with PRINCE2 (7th ed.). TSO (The Stationery Office). Section 10.1, p. 108.