UML Weekend Crash Course™ - To Parent Directory

Session 23—Applying the Extended Statechart Features to the Case Study 241
:Order
ProcessingClerk
1:Order()
:Order
:Product
2:return Order
Inventoried
3:sell(Order)
Inventoried
sell(Order)
4:return true
5:addProduct(Product)
Sold
Sold
6:return true
Figure 23-5 Finding the transition events and candidate states for Scenario 3
In the fourth scenario, shown in Figure 23-6, the product is packed for shipment. But
before the product may be packed for shipping it must have been sold. The pack event
requires the shipment to update the product with the Shipment information so that we can
track it. To show the change, I model a transition from the sold state to a new state labeled
Packaged.
:ShippingClerk :Shipment :Product
1:Shipment()
2:return Shipment
Sold
3:pack(Shipment)
Sold
pack(Shipment)
Packaged
4:return true
Packaged
5:addProduct(Product)
6:return true
Figure 23-6 Finding the transition events and candidate states for Scenario 4