According to the 'defined roles and responsibilities' principle in PRINCE2, the project management team must represent the business, user, and supplier interests. This ensures that all critical viewpoints are considered in decision-making processes, aligning the project outcomes closely with organizational needs and stakeholder expectations. References: PRINCE2 Foundation Handbook, Defined Roles and Responsibilities section.

The Project Board within the PRINCE2 framework is made up of three key roles: the Executive, the Senior User, and the Senior Supplier. These roles represent the business, user, and supplier interests respectively, ensuring that the project's decision-making is balanced across these three perspectives. References:
PRINCE2 Foundation official documentation and study materials.

The project mandate should provide the terms of reference for the project. These define the purpose and objectives of the project, setting the foundation for further project definition and planning in subsequent processes. References: PRINCE2 Foundation Training Manual; PRINCE2 2017 Foundation handbook.

In PRINCE2, a management activity within a project typically involves formal agreements and organizational actions. Agreeing on a work package with a team manager is a core management activity, where specific tasks, responsibilities, and tolerances are defined and communicated, ensuring that the project's delivery aligns with the planned objectives and constraints.References: PRINCE2 7 Foundation study materials on project management activities.

One of the best reasons for a PRINCE2 project to have at least two stages is that it provides structured decision points. At the end of each stage, the project board reviews progress and decides whether to proceed with the next stage, ensuring that the project remains viable and aligns with business objectives before committing further resources.References: PRINCE27 Foundation resources on stage management.