Project Management Office Definition and Purpose

This post gets down to the basics of the Project Management Office (PMO): What is a PMO, what is its purpose, and why do you need one (or more) in your organization?

Is There a Single Project Management Office Definition?

Project Management Office definitionThe acronym ‘PMO’ can actually refer to any of the following:

  • Portfolio Management Office – focused at the strategic level, collaborating heavily with executive management on prioritization of project and program initiatives to achieve strategic goals
  • Program Management Office – focused on effectively implementing one or more core programs, and their constituent projects, for the organization to achieve specific strategic goals
  • Project Management Office – executing projects effectively and consistently as a strategic advantage across all projects

I could not actually find an “official” definition of ‘PMO’ in the Project Management Body of Knowledge, 7th Edition (the current PMBOK Guide), published by the Project Management Institute (PMI). However, the PMBOK Guide does have a whole appendix on “The Project Management Office”.

Rather than provide a specific definition, the PMI simply states that a PMO provides a management structure that supervises, facilitates, and guides project related activities. The rest of what a PMO might provide is situation-specific.

So, there is no ‘one size fits all’ approach to PMO’s. A PMO can be focused on specific things within the organization, such as:

  • Function – something such as R&D or IT, where the organization wants a PMO to help improve the effectiveness and consistency across projects within that particular function
  • Department – similar to function, could be one or more departments – maintenance, capital projects, sales, support, human resources – where the PMO helps manage specific types of efforts to achieve targeted performance
  • Group – could be a particular broad grouping within a company, such as a division, where the PMO can help take advantage of a particular opportunity for performance gain through improved project execution
  • Area – a particular strategic initiative that requires special attention, where a specialized PMO can help to manage in a specific manner separate from other business areas

Whatever the context, a PMO typically provides best practices in the form of:

  • Benchmarks – metrics for specific aspects of performance at strategically determined target levels
  • Guidance – tools, templates, and guides providing helpful knowledge and input for use across projects
  • Other best practices – could be comprehensive tools like software, or a program of best practices training

Overriding Purpose of a PMO

PMBOK Guide on PMOsIn the PMBOK Guide, it states that organizations set up PMO’s for a variety of purposes, but with one core benefit:

“…improved project management in terms of schedule, cost, quality, risk, and other facets. PMOs have many potential roles in aligning work with strategic goals: engaging and collaborating with stakeholders, developing talent, and realizing value from investments in projects.”

In reading the literature on PMO’s, I am hit by overwhelming statistics from 10 or so years ago at how many PMO organizations have failed. One statistic that especially hit home was that over 75% of PMO initiatives failed within 3 years of being initiated!

The key reason for these failures seems to have been that the PMO’s could not demonstrate that they added value. That could be for a number of reasons:

  • They truly were not adding value
  • The did not have involvement from a high level sponsor
  • They were adding value, but could not adequately communicate it

There surely are more reasons, but I have to conclude that the core challenge of PMO’s, as a service organization, is to add value. They can do this by:

  • Provide guidance aimed to improve consistency.
  • Provide support in specific functions, such as scheduling, risk management, software usage, etc.
  • Provide the project managers that manage the projects.
  • Provide a link between projects and the highest strategic levels in the organization.
  • Provide a more adaptive, agile structure that actually enables flexibility and pivoting when needed.

For more info, see the post which indicates the three different types of PMO’s.

Strategic Implications

When a PMO is a ‘Portfolio Management Office’ or ‘Program Management Office’, it is naturally more strategically driven. However, each type of PMO, including a ‘Project Management Office’, provides an overall strategic benefit.


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Simply by having a PMO, the organization has a potential strategic advantage in the form of competitive advantage. The strength of that advantage depends upon the uniqueness how the PMO is organized the value it adds.

Michael Porter, strategy guru from Harvard Business School, said that there are two types of projects in his talk on Strategy and Project Management to the PMI:

  1. Strategic breakthrough projects
  2. Best practices projects

Implementing an effective PMO is a project (or program) unto itself. The question is, which of the two types is it? It probably has elements of both strategic breakthroughs and best practices. To the extent that it leans more toward strategic breakthroughs, it will have the opportunity to create more unique and long-lasting competitive advantage.

The metrics by which the organization chooses to measure PMO effectiveness and value added can help achieve this. Best practices are necessary in order to maintain parity with the competition. Strategic breakthroughs are necessary in order to build competitive advantage. The challenge is in developing strong metrics to measure effectiveness in both areas.

Impact on Individual Projects, Programs, and Overall Portfolio


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Left to their own devices, project managers will impart their own imprint on each project. The purpose of the PMO is to make this imprint more consistent across projects, and to raise the level.

The existence of a good PMO can be very helpful to project managers. It can be a forcing function for certain best practices but also simply by association it can provide a discipline that is otherwise absent.

PMO’s an also provide a central networking point among project managers. PM’s can use the PMO to learn from each other – by sharing lessons learned, best practices, ideas on approaches, etc. PMO’s can provide a great networking opportunity for PM’s.

These impacts show themselves in all types of PMO’s, whether oriented more to portfolios, programs, or projects.

Summary and Conclusion

This post provided an overview of the PMO’s and a Project Management Office Definition – something that is elusive because the purpose of a PMO is very situation-dependent.

What is your definition for a PMO?

To pull some of these ideas together, I recommend the following video by Dr. Mike Clayton of Online PM Courses:

9 thoughts on “Project Management Office Definition and Purpose”

  1. A Project Management Office (PMO) is a centralized unit within an organization responsible for defining and maintaining project management standards, processes, and tools. The purpose of a PMO is to provide support and guidance to project teams, improve project efficiency and effectiveness, and align project initiatives with the organization’s strategic goals and objectives.

    The PMO serves as a central hub for project management information, resources, and best practices, helping to ensure consistency and quality in project delivery. Ultimately, the PMO’s aim is to improve organizational performance by ensuring the successful delivery of projects and programs.

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  2. Hello,

    I just finished reading your article on Project Management Offices (PMOs), and I have to say, it was a very informative and insightful read. Your article covers many important aspects of PMOs, including their definition, purpose, and benefits.

    Your clear and concise definition of a PMO as a centralized unit within an organization responsible for overseeing and improving project management practices was very helpful in understanding the role of a PMO. Your discussion of the different types of PMOs, including Enterprise, Divisional, and Departmental PMOs, was also helpful in understanding how PMOs can be tailored to the needs of different organizations.

    I appreciated your explanation of the benefits of a PMO, including improved project performance, enhanced project governance, and increased stakeholder satisfaction. Your discussion of the potential risks and challenges of establishing a PMO, including resistance to change and lack of buy-in from stakeholders, was also insightful.

    Overall, I think your article is a great resource for anyone interested in learning more about PMOs and how they can benefit organizations. Your clear and concise writing, along with your well-researched and insightful content, make this a great read for anyone looking to understand the role of a PMO in organizational success. Thank you for sharing this informative piece! For More Info:

  3. Hello there, author! I just finished reading your article on the definition and purpose of a Project Management Office (PMO), and I wanted to drop a comment to let you know how much I enjoyed it. Your article provided a clear and concise explanation of PMOs and why they are essential in project management.

    I appreciated how you started by defining what a PMO is and then delved into its purpose and benefits. Your emphasis on the PMO’s role in providing governance, standardizing processes, and ensuring project success resonated with me. It’s fascinating to see how a well-structured PMO can act as a driving force behind efficient project delivery and improved organizational performance.

    Furthermore, your breakdown of the various functions and responsibilities of a PMO was informative. From portfolio management to resource allocation and risk management, it’s evident that a PMO plays a multifaceted role in project management. Your explanation of the different types of PMOs, such as supportive, controlling, and directive, provided valuable insights into the varying levels of involvement and authority they can have.

    I also appreciated the inclusion of practical tips and best practices for implementing a PMO. Your advice on aligning the PMO with organizational goals, establishing clear communication channels, and fostering collaboration highlighted the importance of a well-integrated PMO within the broader organizational structure.

    Thank you for sharing your expertise and shedding light on the importance of PMOs. Your article was insightful and well-written, and I look forward to exploring more of your content in the future. Keep up the great work!

  4. I just finished reading your article on project management offices (PMOs), and I couldn’t resist leaving a comment. First of all, kudos to you for breaking down such a complex topic in such a clear and concise manner. As someone who’s always been intrigued by the world of project management, your insights were not only enlightening but also incredibly helpful.

    Your explanation of what a PMO is and its purpose was spot on. It’s often a concept that gets tossed around without a proper understanding, but your article clarified it perfectly. I especially appreciated how you emphasized the role of a PMO in aligning projects with the organization’s strategic goals. That’s something I believe is often underestimated. Your real-world examples and case studies also added a practical touch, making it easier for readers like me to connect the dots.

    In the second part of your article, when you discussed the benefits of having a PMO, I was nodding along with every point you made. Improved project success rates, better resource allocation, and enhanced decision-making – these are outcomes that any organization would want to achieve. And your explanation of the different PMO structures, from supportive to controlling, was really insightful. It made me realize that a PMO isn’t a one-size-fits-all solution, and it should be tailored to an organization’s specific needs and culture.

    All in all, your article was a fantastic read, and I’ll definitely be sharing it with my colleagues who are also interested in project management. Keep up the great work, and I look forward to reading more from you in the future! for more information please visit the website:


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