Goals of this lesson
For a better overview of a more complex simulation model, you are able to hide the Message Flow. For an implicit message flow between two Message Events both have to be named equally. This is the case in Model 4c. (Have a look at Linking Events to each other for more information on this matter.)
Figure 1: Model 4c - Messages without an explicit message flow / IYOPRO-Link
Attention: This possibility is not yet given for activities, those always need an explicit message flow.
Note: Do not get confused with IYOPRO's conformance warnings. It is right that receiving message events need an incoming message flow, but this does not matter for simulation or modeling purposes.