Lessons Learned Repository: Capturing Knowledge for Future Performance

PMBOK v8 Definition

A lessons learned repository is an organizational process asset where information is transferred at the end of a project or phase. Lessons learned updates refer to the process of capturing, documenting, and integrating knowledge gained during a project to improve future performance. This effort involves identifying what went well, what did not, and how similar situations can be better managed in future projects.

Why It Matters for the Exam

This concept appears frequently in PMI exam questions about organizational process assets (OPAs) and knowledge management. You will see it in questions testing your understanding of how project knowledge is captured, stored, and reused across the organization, particularly in the Manage Project Knowledge process and at project/phase closure.

Key Points to Remember (for the exam)

• Main Source Process: Manage Project Knowledge process creates the lessons learned register early in the project
• Timing: Lessons learned are managed throughout the project, not only at the end
• Final Destination: At end of project or phase, information transfers to the lessons learned repository (an OPA)
• Content Captured: Challenges, problems, realized risks and opportunities, what went well, what did not
• Recording Methods: Videos, pictures, audio, or other suitable means ensuring efficiency of captured lessons
• Who Participates: Persons or teams involved in the work are also involved in capturing the lessons learned
• Register Updates: The lessons learned register is created as output of Manage Project Knowledge, then used as input and updated as output in many processes throughout the project

Typical PMI Exam Example

A project manager is closing a phase and needs to ensure the team's knowledge about a successful risk mitigation strategy is preserved. What should the project manager do? The correct answer is to transfer the information from the lessons learned register to the lessons learned repository, an organizational process asset.

PMI Exam Traps

• Trap: Confusing the lessons learned register with the lessons learned repository

  • Reality: The register is a project document updated throughout the project; the repository is a permanent OPA updated at phase/project end

• Trap: Thinking lessons learned are captured only at project closure

  • Reality: Lessons learned are incorporated during ongoing processes throughout the entire project, not only at the end

• Trap: Assuming only the project manager captures lessons learned

  • Reality: The persons or teams involved in the work are also involved in capturing the lessons learned

• Trap: Believing lessons learned are only documented in written form

  • Reality: Knowledge can be documented using videos, pictures, audio, or other suitable means

Important PMI Connections

Quick Review Questions

1. At what point in the project is the lessons learned register first created?

2. What is the difference between a lessons learned register and a lessons learned repository?

3. Who should be involved in capturing lessons learned during a project?

4. What types of content should be included in lessons learned documentation?

5. When should lessons learned be captured - only at project end or throughout the project?

PMBOK v8 Reference

Section 4.5 - Manage Project Knowledge