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

Lessons learned registers are most valuable when consulted proactively throughout the project, not just at the end. During planning, they help avoid known pitfalls. During execution, they guide problem-solving. At close, they provide context for the current project's lessons. Regular consultation maximizes organizational learning.

**Why not A:** Consulting lessons learned only at project close misses the most valuable opportunities to apply prior knowledge. During planning and execution, lessons from past projects can prevent known pitfalls and guide better decisions. Waiting until the end provides no proactive benefit.

**Why not B:** Limiting lessons learned consultation to periods of schedule delay is too reactive. Lessons learned can help with all aspects of project management — not just schedule problems — including risk management, communication, quality, and stakeholder engagement.

**Why not C:** Waiting for a completely novel problem before consulting lessons learned wastes the register's value. Many situations have parallels to past experiences, and consulting prior knowledge regularly helps the team avoid repeating mistakes and apply proven approaches to familiar challenges.