CAPM Practice: Determine how to document project controls of predictive, plan-based projects

Correcting a defect fixes the current problem (defect repair). To prevent recurrence, a preventive action is needed — changes to work procedures, checklists, training, or processes that eliminate the conditions that caused the defect. Preventive actions address the root cause to avoid the problem in future deliverables.

**Why not A:** Defect repair corrects the specific defect that was found but does not prevent the same type of defect from occurring in future deliverables. It addresses the symptom (the current defect) without addressing the underlying process that caused it.

**Why not C:** Change control manages the formal process for submitting, evaluating, and approving changes to project baselines. While a defect correction may trigger a change request, change control itself does not implement process improvements to prevent defect recurrence.

**Why not D:** Lessons learned documentation records what happened for future reference and organizational learning, but it does not actively change current processes to prevent defect recurrence. Documentation alone does not modify the procedures that produced the defect.