An objective of the 'Directing a Project' process in PRINCE2 is to provide an interface between the project management and the wider corporate, programme management, or customer environment. This process ensures that the project remains aligned with the organization's objectives and governance frameworks, and that corporate or programme management can provide oversight and support as needed.
= PRINCE2 7 Foundation handbook and online resources

The length of management stages in a PRINCE2 project can be influenced by the availability of the project board to review and approve key decisions at stage boundaries. This ensures that stages are planned around when decision-makers can participate and provide necessary guidance or approvals.
= PRINCE2 7 Foundation handbook and online resources

The 'Controlling a Stage' process should be used during each delivery stage of a project. This process is essential for the day-to-day management of the project stage by the project manager. It includes monitoring, reporting, and responding to issues within the stage to ensure the project remains within agreed tolerances.
= PRINCE2 7 Foundation handbook and online resources

The "Directing a Project" process is used by the project board to respond to an exception report. This process involves the project board making decisions on how to proceed when project tolerances are forecasted to be exceeded, which are typically communicated through an exception report.
= PRINCE2 7 Foundation handbook and online resources

When proposed changes exceed the agreed change budget, the change authority must refer the decision back to the Project Board. This is because changes that exceed the budget may impact the overall project constraints and require higher-level approval to proceed. References: PRINCE2 Foundation Training Manual; PRINCE2 2017 Foundation handbook.