Example: Self-Service machine (cont.)
It's possible that the self-service machine is out of one or more products...
The "Restock" use case
Actions that supplier must do every time interval (say, one or two weeks) are:
Supplier unsecures the machine, opens the front of the machine, and fills each brand's
compartment to capacity. (The supplier may fill each brand according to consuming).
Then he/ she closes the front of the machine and secures it.
This use case diagram is presented on the following picture:
