CAPM Practice: Demonstrate an understanding of common problem-solving tools and techniques

A lessons learned register captures knowledge about what worked well, what did not, and recommendations for future projects. It is maintained throughout the project and contributes to organizational process assets, helping future project teams avoid repeating mistakes.

**Why not A:** Listing approved changes to project scope is the function of a change log or change register, not a lessons learned register. The lessons learned register captures knowledge and insights from project experiences for future improvement.

**Why not C:** Documenting escalated problems is part of the issue log or escalation records, not the lessons learned register. While escalated issues might generate lessons learned, the register's purpose is broader — capturing all knowledge gained, not just escalation records.

**Why not D:** Tracking defects from quality inspections is the purpose of a defect log or quality control records. The lessons learned register focuses on organizational knowledge and recommendations for future projects, not on tracking specific defects.