1. Classify each of the qualities discussed in this chapter as internal, external, product, or process, giving examples. The classes are not mutually exclusive. 2. Show graphically the interdependence of the qualities discussed in this chapter: Draw a graph in which each node represents a software quality and an arrow from node A to node B indicates that quality A contributes toward achieving quality B. What does the graph show you about the relative importance of the software qualities? Are there any cycles in the graph? What does a cycle imply?