UML22 — Section: 13.1

Figures 307 and 308 are identical. Fig. 308 does not show what the text is describing as the Communication Domain Model(especially the paragraph on pg 457 starting with "As shown in Figure 308..."). Fig. 307 (and current 308) multiplicity for the association execution:BehaviorExecution is diagrammed as * but I wonder if it shouldn't be 0..* since the text indicates that an object may or may not cause the execution of a behavior. In the paragraph immediately following fig. 309, I believe that "The execution of a send action results in a send request, which results in a signal event occurrence (not a call event occurrence as stated). Minor editing call - In the first line on page 457, change synchronously and asynchronously to synchronous and asynchronous.

see pages 240/241 of ptc/2006-04-01