1. List two cases described in this chapter in which insufficient testing was a factor in a program error or system failure.

2. List two cases described in this chapter in which the provider did an inadequate job of informing customers about flaws in the system.

3. What was one cause of the delay in completing the Denver airport?

4. What is one case in which reuse of software caused a serious problem?

5. What is one characteristic of successful high reliability organizations?

6. Describe one principle of human-interface design that is particularly important in safety-critical applications.

7. Many college students attend several colleges before they eventually graduate. It would be a convenience for students if they could order a complete transcript (say, for job applications) from the federal student database discussed in Section 2.4.1.* Describe ways in which getting transcripts from the database might be riskier than getting them from the individual colleges