Date: 30 May, 2001; Author: Shane Sendall (LGL-DI-EPFL)

Scope: Bank Accounts and Transactions System

Level: User Goal

Intention in Context: The intention of the Client is to transfer money from one account to another. Clients do not interact with the System directly; instead, for this use case, a client interacts via a Mediator (which can be a Teller, ATM, or a Web Client).

Primary Actor: Client

Precondition: The Client has already identified him/herself

Main Success Scenario:

1. Client requests Mediator to transfer a sum of money from his/her account to another account, providing account details.

2. Mediator requests System to transfer money, providing transfer transaction details^*.

3. System validates that the Client's account has sufficient funds available,
debits the account by the amount,
credits the destination account,
records the details of the transaction,
and informs Mediator.

Extensions:

2a. Client requests Mediator to cancel the transfer: use case ends in failure.

3a. System ascertains that the Client does not have sufficient funds for the transfer (BR-2).

3a.1. System informs Mediator; use case ends in failure.

3b. System ascertains that it was given incorrect information:

3c. System ascertains that it was given insufficient information to make the transfer:

Notes:

^* a hyperlink to the document that contains data details and formats.