Describe the concept of traceability in requirement analysis. How does traceability ensure that project deliverables align with initial requirements?

Explain how prototyping works in tandem with the requirements gathering process. What makes this method unique, and how does it compare to other common approaches?

Discuss the concept of scope creep in requirement analysis. How can project managers prevent and manage scope creep effectively?

Justify the use of Earned Value Management (EVM) to control costs and monitor project progress, and hypothesis as to why it is not used more often. For example, what are some general rules of thumb for deciding whether or not a cost fluctuation, a schedule variation is positive or negative?