Date: 30 May, 2001; Author: Shane Sendall (LGL-DI-EPFL)
BAT System
Use Case: Withdraw Money
Scope: Bank Accounts and Transactions System
Level: User Goal
Intention in Context: The intention of the Client is to withdraw from his/her account. Clients do not interact with the System directly; instead, for this use case, a client interacts via a Non-Web Mediator, Non-Web Mediator for short (which can be a Teller, or an ATM).
Primary Actor: Client
Precondition: The Client has already identified him/herself.
Main Success Scenario:
1. Client requests Non-Web Mediator to withdraw a sum of money from his/her account.
2. Non-Web Mediator requests System to withdraw money, providing withdraw transaction details*.
3. System validates that the Client's account has sufficient funds available,
Extensions:
2a. Client requests Non-Web Mediator to cancel withdrawal: the use case ends in failure.
3a. System ascertains that Client does not have sufficient funds for the withdrawal (BR-2).
3a.1. System informs Non-Web Mediator; use case ends in failure.
3b. System ascertains that it was given incorrect information:
3b.1. System informs Non-Web Mediator; use case continues at step 2.
3c. System ascertains that it was given insufficient information to make the withdrawal:
3c.1. System informs Non-Web Mediator; use case continues at step 2.
Notes:
* a hyperlink to the document that contains data details and formats.