22.1	Explain why the intangibility of software systems poses special problems for software project management?
23.2	Explain why the process of project planning is iterative and why a plan must be continually reviewed during a software project.
24.6	Explain why program inspections are an effective technique for discovering errors in a program. What types of error are unlikely to be discovered through inspections?
25.8	What are the benefits of using a change request form as the central document in the change management process?