UML Weekend Crash Course™ - To Parent Directory

Session 23—Applying the Extended Statechart Features to the Case Study 243
On Order
receive(location)
Inventoried
sell(Order)
Sold
return(location)
pack(Shipment)
Packaged
ship(carrier, date)
Shipped
Figure 23-9 The merged Statechart diagram
This is just one simple technique for taking advantage of the Sequence diagram to help
you build a Statechart. You will very likely encounter a few others. In fact, there are moreformal
methods for mapping the two diagrams in a manner that is supported by software.
Some modeling tools allow you to work on a Statechart and then automatically generate or
update your Sequence diagrams. Likewise, you can create Sequence diagrams and generate
the Statechart.
The Statechart and Sequence diagrams can help you a great deal when you’re trying to
design the behavior of your objects, especially those few objects that are at the heart of
your application.