Learning UML

Exercises

Solutions to these exercises are supplied in Section B.2.1

1. Figure 6-30 shows a sequence diagram, and Figure 6-31 shows a collaboration diagram. These figures are equivalent; that is, they have the same elements. Identify the missing communications and guard expression and describe the interaction and collaboration. The missing communications in Figure 6-30 are labeled ELM-01 and ELM-02. The missing guard expression in Figure 6-30 is labeled ELM-03. The missing communications in Figure 6-31 are labeled ELM-04, ELM-05, and ELM-06.

   

   Figure 6-30. Sequence diagram

   

   Figure 6-31. Collaboration diagram

2. Describe Figures Figure 6-32 and Figure 6-33: identify the various elements. These elements are used for generating a report and its sections.

   

   Figure 6-32. Sequence diagram for generating a report and its sections

   

   Figure 6-33. Collaboration diagram for generating a report and its sections

   Update the diagrams stepwise to show the following interaction and collaboration. After each step, check your answers against the solutions shown in Appendix B:

   1. For each section, the Report element retrieves the ...