Exam CAPM Topic 1 Question 457 Discussion

The correct answer is:

✅ B. Expert judgment

Explanation

When preparing a Cost Management Plan, one of the key inputs is expert judgment.

Experts provide knowledge and experience on estimating, budgeting, cost control methods, and applicable standards.

This input helps define:

How costs will be planned, structured, and controlled

Units of measure, accuracy levels, and reporting formats

Why the other options are incorrect

A. Project management plan – This is usually not yet fully developed; it is an output of planning processes, not an input to the cost management plan.

C. Cost estimates – Created after the cost management plan, not before.

D. Lessons learned – Helpful as organizational process assets, but not a primary input for preparing the cost management plan.