Hi..
As per understanding every entity participating in an interaction with a
system in a use case should be modeled as Actor.
Looking at an example given in the book "Applying UML...." by C. Larman, two
actors "Customer" and "cashier" are shown in a use case "Buy Item". But as
course of events shown below the "Credit Authorization Service" is also
involved in the process. How to model it? as an actor? (as it is shown in
the actor action column.
Actor Action System Response
3. Credit Authorization Service authorizes 4. Receives a credit approval
the payment. Reply from the
Credit Autho
rization
Service(CAS).
Can anybody clarify. Thanks in advance.
------------------------------
Arshad Ali Shahid
Professor of Computer Science
FAST National University
Islamabad
------------------------------
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