This case gives students an exercise in mapping out a set of tasks and wrestling with ill-defined precedence relationships, external constraints, and possible risks. The case illustrates the flexibility that sometimes exists in how tasks are sequenced, as well as bringing in some realistic external considerations.

1. Draw a network diagram that gives a workable plan for Derek’s trip and work.

2. Can Derek achieve all the things he wants to do this summer? What is the first thing he needs to do? In what order should he visit the various countries he wants to see?

3. When should Derek start doing the work for his father? When should he take the class?

4. What things might happen that put Derek’s plans at risk? How can he mitigate or respond to these risks?