Low Level Function
1.2.3 Inform Users on Transactions

Overview

This Function shall be capable of providing the following facilities:

(1) A HMI through which the Traveller can be provided with a list of the transactions they have performed.
(2) The HMI shall also provide the Traveller with the status of their Electronic Payment account(s).
(3) Also the HMI shall only provide both types of information following a specific request from the Traveller and shall only provide information that is directly relevant to that Traveller.

Functional Requirements

(a) read the traveller's request for information
(b) if asked extract from the store of "user's account" Data the status of the traveller's account
(c) if asked extract from the store of "transactions" Data the list of all the transactions performed by the traveller during the specified period, with the application of filters according to traveller's requests
(d) present the information to the traveller.

Diagrams

The Diagram(s) is (are) the diagram(s) where you can find the function :
  • DFD 1.2 Manage User's Account
  • Functional Tree of Area 1

    • Parent Higher Level Function

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description

    4.1.0.2
    The system shall manage customer data (identification, account, rights of residents, etc.).
    4.1.0.3
    The system shall give exact details of any financial transaction to the traveller.
    4.1.3.3
    The system shall have the maximum security necessary for electronic financial transactions.
    4.1.3.5
    The system shall provide information in the native language at the output location, and/or from a user selected choice of other appropriate foreign languages.