PRINCE2 Seven Principles

Continued Business Justification	A PRINCE2 project has continued business justification and that is the justifiable reason to start the project.
Learn from experience	PRINCE2 project teams learn from previous experience: lessons are sought, recorded and acted upon throughout the life of the project.
Defined Roles & Responsibilities	A PRINCE2 project has defined and agreed roles and responsibilities with an organisation structure that engages the business, user and supplier stakeholder interests.
Manage by Stages	A PRINCE2 project is planned, monitored and controlled on a stage by stage basis.
Manage by Exception	A PRINCE2 project has defined tolerances for each project objective to establish limits of delegated authority.
Focus on Products	A PRINCE2 project focuses on the definition and delivery of products, in particular their quality requirements.
Tailor to suit the Project Environment	PRINCE2 is tailored to suit the project's environment, size, complexity, importance, capability and risk.