M3 assessment can be applied both to project management activities being carried out at the individual project level and those activities across an organisation, to score programme and project frameworks and approaches.

The levels facilitate organisational transitions from an immature state to become a mature and capable organisation with an objective basis for judging quality and solving programme and project issues. M3 indicate how key process areas can be structured hierarchically to define a progression of capability which an organisation can use to set goals and plan their improvement journey. M3 aims to provide an assessment and measurement score for the portfolio, programme and project- related activities within process areas that contribute to achieving a successful project outcome. M3 was owned by the Office of Government Commerce (OGC), a department within the UK Government with a remit to help public sector organisations improve their efficiency, gain better value for money from procurements and deliver improved success from programmes and projects. M3 is unique in that it looks at the whole system and not just at the processes. M3 (also known as the Portfolio, Programme and Project Management Maturity Model) is a management maturity model looking across an organization at how it delivers its projects, programmes and portfolio(s).

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