What’s New in PMBOK Guide, 6th Edition - A Summary of Changes

10 minute read    Updated:    Harwinder Singh

PMBOK Guide Sixth Edition Changes

The PMBOK Guide, 6th Edition was released on Sep 6, 2017. Being an active PMI member, I was able to download PDF version of the PMBOK guide on the same day for free. To my surprise, the PDF file had 2 guides inside - the PMBOK Guide, 6th Edition and the Agile Practice Guide. The first 800-odd pages are the PMBOK Guide, and the next 180 are the Agile Practice Guide. Appendix X1 of the PMBOK Guide, 6th Edition provides a complete list of changes to the Sixth Edition. This post is a summary of changes and my analysis of those changes. I’m still studying the guide and may update this post as I learn more.

What’s New in PMBOK Guide, 6th Edition

The Sixth Edition of the PMBOK Guide aligns the guide with PMI’s Role Delineation Study (RDS) of 2015. The PMP Exam was updated in Jan 2016 to align with the RDS findings, but the PMBOK Guide was not. This Sixth Edition of the Guide is now “catching up”.

The Sixth Edition aims to make the guide more consistent and to provide better clarity on the project management processes and their inputs, tools and techniques, and outputs. The guide also ensures harmonization with other PMI foundational standards.

There are many significants updates in the Sixth Edition.

PMI acknowledges that in recent years there has been more adoption of agile and adaptive methodologies in the management of projects. Therefore, there’s a greater focus on Agile/Adaptive methodologies in the Sixth Edition.

Let’s start with the changes to the structure of the guide.

The Structure of the Guide

The Guide is now divided into 3 parts:

  1. A Guide to the Project Management Body of Knowledge (PMBOK® Guide)
  2. The Standard for Project Management
  3. Appendices, Glossary, and Index

The Introduction (Chapter 1), Project Management Processes (Chapter 3), and Annex A1 of the Fifth Edition have now been consolidated into Part 2 (The Standard for Project Management) of the Sixth Edition.

Role of the Project Manager

The Role of the Project Manager, which was part of Chapter 1 in the Fifth Edition is now a separate chapter (Chapter 3) in itself.

It ties the project managers skills to the PMI’s Talent Triangle.

Expect greater weightage on this area in the next update of the PMP exam.

Knowledge Area Changes

Two Knowledge Areas names were changed to more closely reflect the work that is done in those Knowledge Areas.

Old Name New Name
Project Time Management Project Schedule Management
Project Human Resource Management Project Resource Management

Let’s understand the rationale for these changes.

  1. Project Time Management has changed to Project Schedule Management.

    It took just a few decades for PMI to realize that project managers do not manage “time”, but rather define and manage the project “schedule”. Well, better late than never.

  2. Project Human Resource Management has changed to Project Resource Management.

    Both team resources and physical resources are addressed in the Sixth Edition, and hence the name change.

Every Knowledge Area chapter now includes 4 sections at the beginning:

  • Key Concepts
  • Trends and Emerging Practices
  • Tailoring Considerations
  • Considerations for Agile/Adaptive Environments

Process Changes

Five processes have been either added, or moved to a different Knowledge Area, or entirely removed from the Sixth edition.

Process Change
Manage Project Knowledge (Section 4.4) Added
Estimate Activity Resources (Section 6.4) Moved to Project Resource Management
Control Resources (Section 9.6) Added
Implement Risk Responses (Section 11.6) Added
Close Procurements (Section 12.4) Eliminated

Let’s understand these changes better.

  1. Manage Project Knowledge (Section 4.4) - Added.

    This was added to address the need for knowledge management in projects. Due to the distributed and mobile nature of the modern workforce, there’s more focus on knowledge management and information management, so that knowledge and information does not get lost.

    A key output of this process is the lessons learned register. This aligns with the “lessons learned management” task that was introduced in Jan 2016 update of the PMP exam.

    PMI emphasizes the need to learn continually throughout the project rather than waiting until the end to reflect.

  2. Estimate Activity Resources (Section 6.4) - moved to Project Resource Management

    Since the Knowledge Area Project Human Resource Management has been repurposed as Project Resource Management (taking both human and physical resources into its folds), the Estimate Activity Resources process has been moved to the Project Resource Management.

  3. Control Resources (Section 9.6) — added

    In the Fifth Edition, Project Human Resource Management had no “Monitoring and Controlling” process. That was indeed puzzling. With the Sixth Edition, the Control Resources process has been added under the Monitoring and Controlling Process Group.

  4. Implement Risk Responses (Section 11.6) — added

    Implementing Risk Responses was previously considered part of Monitor and Control Project Risk Process. But now it has been separated into a separate process under the Executing Process Group. This change makes sense to me.

  5. Close Procurements (Section 12.4) — eliminated, and merged into Control Procurements and Close Project or Phase processes

    According to market research done by PMI, contracts are usually closed by contracts, procurement or legal departments, and not by project managers. Therefore, information from Close Procurements about evaluating all completed deliverables and comparing them to the contract was moved into Control Procurements. Information about administrative, communications, and records was moved to Close Project or Phase.

Total processes have increased from 47 in the Fifth Edition to 49 in the Sixth Edition.

The use of the term “Control” has been replaced with “Monitor” especially in processes that involve people. Nine processes have been renamed.

Old Name New Name
Perform Quality Assurance (Section 8.2) Manage Quality
Plan Human Resource Management (Section 9.1) Plan Resource Management
Acquire Project Team (Section 9.2) Acquire Resources
Develop Project Team (Section 9.3) Develop Team
Manage Project Team (Section 9.4) Manage Team
Control Communications (Section 10.3) Monitor Communications
Control Risks (Section 11.6) Monitor Risks
Plan Stakeholder Management (Section 13.2) Plan Stakeholder Engagement
Control Stakeholder Engagement (Section 13.4) Monitor Stakeholder Engagement

Question to PMI - Why was the new process “Control Resources”, not named “Monitor Resources”?

Inputs, Tools and Techniques, Outputs (ITTO) Changes

I have good news and bad news here.

The good news is that the Guide is more consistent than the previous editions and does a much better job of explaining “why” an input or a tool or technique is used in a process. This had been a problem area with the previous editions.

Now the bad news.

PMI claims that the number of tools and techniques has been reduced. But contrary to that, my analysis tells me that the number has increased from 118 to 131 unique tools and techniques (11% increase).

The commonly used tools and techniques are now grouped by their purpose or intent. The groups are:

  • Data gathering, e.g. Brainstorming, Interviews, Market Research
  • Data analysis, e.g. Cost-benefit Analysis, Earned Value Analysis, Performance Reviews
  • Data representation, e.g. Cause-and-effect Diagrams, Flowcharts, Histograms
  • Decision-making, e.g. Multicriteria Decision Analysis, Voting
  • Communication skills, e.g. Feedback, Presentation
  • Interpersonal and team skills, e.g. Active Listening, Conflict Management, Emotional Intelligence

The overall number of ITTOs has increased from 618 to 722 (17% increase) and that is despite the grouping mentioned above. If you count the leaf nodes (without grouping), the total ITTOs may touch 4 figures. I can’t help but feel sorry for those who’ll be taking the PMP and CAPM exams for the Sixth Edition. Refer to ITTO tricks for PMP Exam for help.

Other Key Changes

(Note: This section is work in process)

  • Greater emphasis on Benefits Management
  • A new risk response “escalate” has been introduced
  • Several Agile concepts have been introduced to the Develop Schedule process
  • The concept of Business Documents, which consists of the Business Case and the Benefits Management Plan has been introduced
  • Several new tools and techniques have been introduced

PMBOK PDF File Permission Changes

Unfortunately, PMI has forbidden the printing of the PDF version with the PMBOK Guide, 6th Edition. Previously, you were allowed to print 1 copy of the guide for your personal educational use. But not anymore.

To top that, there’s a big, bold and ugly watermark on every single page of the guide now. It is super distracting and annoying. I hate it. The file owner’s name and PMI ID are already stamped in the footer section of each page. PMI is getting overzealous in protecting its content with each edition of the guide and it’s got to the extent where it’s directly impacting the readability.


The changes to the Sixth Edition of the PMBOK Guide are quite significant. There’s greater focus on Agile and adaptive methodologies, benefits management and knowledge management. All these changes are aligned with the recommendations of RDS 2015 and some have already been incorporated into the PMP exam since Jan 2016.

Overall the guide is indeed more consistent, detailed and clear compared to the previous editions.

PMI has announced that PMP Exam will change on March 26, 2018 to align with the PMBOK Guide, 6th Edition. If you are preparing for the PMP Exam, you’ll be better off taking the current version of the exam to avoid any nasty surprises from the update.

Hope you found this post useful. I look forward to your questions, comments and suggestions.

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Harwinder Singh Avatar

Hello Chandrasekhar,

Thanks for your comments. I haven’t had a chance to work on it for the past 6 weeks or so and the next few weeks look tight as well. But I’ll try to dive into again as soon as possible, and update this page and other content on the blog as I learn more.