Public sector organisations are under increasing pressure to deliver more with fewer resources, particularly by enhancing their portfolio management capabilities . Strong programme and project management practices are essential to achieving this balance. The P3M3 framework, short for Portfolio, Programme and Project Management Maturity Model, provides a structured way to assess and improve how projects are managed across an organisation.
P3M3 helps leaders identify strengths, weaknesses and opportunities for improvement across project, programme and portfolio levels. It creates a consistent framework that supports continuous development, stronger governance, measurable outcomes and effective stakeholder management.
For PMOs and senior stakeholders, P3M3 is not simply a diagnostic tool. It is a roadmap for embedding best practice, improving delivery confidence, and ensuring that public investment achieves tangible benefits to deliver strategic outcomes.
P3M3 is based on the Capability Maturity Model Integration (CMMI) and adapted for project management environments. It assesses capability across three domains: portfolio management, programme management and project management.
Each domain examines how well processes, controls and governance are embedded. The goal is to understand whether success depends on individual effort or on repeatable, scalable practices.
P3M3 supports continuous improvement by providing a clear pathway from basic awareness to optimised delivery, fostering a continuous improvement culture . It allows organisations to benchmark their maturity, compare progress against industry standards and identify specific actions for improvement.
For example, a government department delivering large-scale transformation programmes may use P3M3 to assess its benefits management and identify whether benefits are being realised consistently or lost between delivery phases.
P3M3 defines five maturity levels that represent increasing sophistication in project management capability:
These levels help organisations assess their current capability and design a plan for progression. Moving from one level to the next often requires cultural change as well as process improvement.
For PMOs, this assessment provides the evidence needed to justify investment in tools, training and frameworks that raise overall maturity.
The P3M3 model evaluates maturity through seven perspectives that apply across projects, programmes and portfolios. These are:
Each perspective provides a lens for analysing performance. Together, they form a comprehensive picture of how mature the organisation’s management practices are.
For instance, a local authority using P3M3 might find strong governance and resource management, but weaker performance in benefits management, where project outcomes are not consistently measured after delivery. This highlights where targeted improvements can yield the greatest value.
Management control ensures that projects and programmes are delivered within scope, time and budget. It relies on structured processes for planning, monitoring and reporting progress.
Governance provides the framework for accountability, decision-making and escalation. Clear governance ensures that project priorities align with organisational objectives and that risks are managed proactively.
In public sector contexts, governance frameworks often include formal boards, gateway reviews and audit processes. P3M3 helps assess whether these controls are operating effectively or whether they are purely procedural without influencing performance.
Strong governance underpins trust and transparency, which are essential when managing public funds and stakeholder expectations.
A key strength of P3M3 is its focus on benefits management and organisational governance, which ensures that programmes and projects deliver measurable value.
Benefits management involves identifying the intended outcomes, planning how they will be achieved and tracking progress through to realisation. It links every activity back to the organisation’s strategic goals, incorporating the ten knowledge areas crucial for success.
In practice, many public sector organisations struggle with benefits realisation. For example, project managers in an NHS transformation initiative may deliver new systems and processes, but without a structured benefits framework it is difficult to demonstrate how those improvements lead to better patient outcomes.
P3M3 provides a disciplined approach to benefits management by requiring a clear benefits plan, defined ownership and post-delivery evaluation. This ensures projects contribute directly to strategic outcomes.
Risk management and financial management are critical perspectives within P3M3. They ensure that decisions are informed, transparent, financially sustainable, and guided by risk trend analysis.
Risk management involves identifying potential threats, assessing their impact and developing mitigation strategies. Financial management covers budgeting, forecasting and cost control.
For example, a transport infrastructure project might use P3M3 to review how consistently risks are identified at programme level or whether budget changes are managed systematically.
P3M3 encourages organisations to integrate financial and risk reporting into their regular governance cycle so that risks to cost and delivery are visible early and addressed collaboratively.
The assessment process is a core part of implementing P3M3. It begins by defining the assessment scope to ensure the review is focused and relevant. The scope determines which areas of the organisation, departments or programmes will be assessed.
Once data is collected, the assessment team produces a detailed report. This report outlines maturity scores across the seven perspectives, summarises key strengths and identifies opportunities for improvement.
The report also serves as a baseline for tracking progress over time. PMOs can use it to inform development plans, allocate resources and demonstrate improvement to leadership teams and external auditors.
A successful P3M3 assessment relies on the right people and information. The assessment team should include both internal and external experts who understand project management practices and the P3M3 model to develop an effective improvement plan.
Data is collected through interviews, document reviews and performance analysis. This evidence-based approach ensures that findings are objective and credible.
For example, a central government department might use external assessors to validate internal results and ensure impartiality. Combining both perspectives provides a balanced view of maturity and actionable insights for improvement in software development organisations.
Implementing P3M3 is not a one-off exercise but a commitment to continuous improvement. It involves using the assessment findings to create a development roadmap that strengthens capability across all seven perspectives.
Implementation steps typically include references to the original capability maturity model to guide the process.
Organisations that adopt P3M3 often see better consistency in delivery, improved forecasting and stronger governance. It provides a structure for embedding best practice and aligning delivery teams with strategic goals.
Without a structured maturity model like P3M3, public sector organisations risk managing projects reactively rather than strategically.
Projects may rely heavily on individual experience rather than standardised methods. This creates variability in quality and performance across teams, making it harder to compare results or apply lessons learned.
Without mature governance, decisions may lack transparency and accountability, leading to duplication of effort or misaligned investments.
When benefits management is not embedded, projects focus on outputs rather than outcomes. As a result, organisations struggle to prove value or demonstrate return on investment.
For example, a council implementing a new digital platform may achieve delivery milestones but fail to measure improvements in citizen access or efficiency. This weakens confidence in future funding requests.
Without P3M3’s structured approach to risk management and financial oversight, organisations may miss early warning signs of cost escalation or delivery risk. Projects can drift off track without timely intervention, eroding both budgets and public trust, further impacting organisational capability .
Perhaps most importantly, organisations that do not assess their maturity lose the opportunity to learn systematically. They repeat the same mistakes across project management practices rather than using data to inform better approaches.
P3M3 transforms this reactive environment into one of deliberate, evidence-based improvement.
P3M3 supports programme and project management by promoting consistency, structure and continuous learning. It helps organisations embed best practice while tailoring processes to their context and scale.
For PMOs, P3M3 offers a way to track progress and measure improvement over time. It creates shared standards that enable better collaboration between departments and suppliers.
Public sector organisations that implement P3M3 often report:
Ultimately, P3M3 strengthens portfolio management by ensuring projects and programmes are prioritised and managed according to strategic importance and capability.
P3M3 is a powerful framework for assessing and improving project management maturity. It provides a structured path for organisations to move from reactive delivery to proactive, data-driven management.
By focusing on the seven perspectives, organisations can identify specific areas for improvement and build stronger governance, financial control and benefits management.
For PMOs and public sector leaders, adopting P3M3 means gaining better visibility, accountability and confidence in delivery. It helps align portfolios with strategic outcomes, ensuring that every project contributes measurable value.
The next step is to begin with an initial assessment, establish a baseline and commit to a roadmap for continuous improvement. As maturity grows, so does the organisation’s ability to deliver complex change successfully and sustainably.
What does P3M3 stand for?
P3M3 stands for Portfolio, Programme and Project Management Maturity Model.
What is the difference between OPM3 and P3M3?
OPM3 is a PMI model focused on organisational project management, while P3M3 is a UK-developed framework that assesses maturity across portfolios, programmes and projects.
What is the P3M framework?
The P3M framework defines how projects, programmes and portfolios are managed cohesively within an organisation.
What are the five stages of PMO maturity?
The five stages are awareness of process, repeatable process, defined process, managed process and optimising process.