The 'Directing a Project' process in PRINCE2 starts when the 'Starting up a Project' process is completed. This transition is triggered by the request to initiate a project. At this point, the project has been preliminarily assessed, and a project brief and initiation documentation are ready to be developed during the 'Initiating a Project' process, pending authorization from the Project Board to proceed.
PRINCE2 7 Foundation handbook and official documents.

Applying the 'tailor to suit the project' principle in PRINCE2 helps make project management less bureaucratic by allowing for adaptations based on the project's size, complexity, environment, and stakeholders' needs. This flexibility reduces unnecessary overhead and ensures that the project management approach is both effective and efficient, enhancing overall project delivery without being overly constrained by rigid processes.
PRINCE2 Foundation Manual

The statement that the quality review technique defines the quality responsibilities of the project team is false.
The quality review technique in PRINCE2 primarily focuses on checking the product's fitness for purpose, involving key parties to gain wider acceptance, and providing a baseline to manage future changes, but does not specifically define the quality responsibilities of the team. References: PRINCE2 Foundation Training Manual; PRINCE2 2017 Foundation handbook.

The purpose of the Initiating a Project process is to establish solid foundations for the project, ensuring that there is a clear understanding of the reasons for the project, the benefits expected, and how the delivery will be managed. This foundation is crucial for the successful management and delivery of the project. References:
PRINCE2 Foundation manual, PRINCE2 official resources

The 'Manage by Stages' principle in PRINCE2 allows the project board to control the project effectively by reviewing its viability at the end of each management stage. This review process provides regular control points where the continuation of the project is assessed based on its performance and continued business justification. References: PRINCE27 Foundation Handbook and official training materials.