Modeling N-ary Associations

In this scenario more classes are associated.
ex. in order to define a schedule there must be an event, a coordinating venue manager, and a location to host the event.
The diamond symbol in the middle is used to merge the three association ends into one association. The schedule class is an association class that describes the combination as a scheduled item.




Figure 6-31: An n-ary association using the diamond symbol.