High Level Function 1.2 Manage User's Account
 Diagram   Definition   
DFD 1.2 Manage User's Account

DFD 1.2 Manage User's Account

This is a DFD diagram which provides a description of the function in the ITS environment

Overview

This High-level Function shall manage the electronic payment account used by the user.  It shall allow the user to credit his or her electronic payment account.  The Function shall debit the account according to the different transactions accomplished.  It shall also provide the user with information about the transactions that he or she has performed.

Diagrams

The Diagram(s) is(are) the Diagram(s) where you can find the function
  • The first diagram, if exists, is a DFD diagram which provides the context of the function
  • The second Diagram, if exists, is a Functional Tree which provides a hierarchical description of the function into subfunctions
  • DFD 1 Provide Electronic Payment Facilities
  • Functional Tree of Area 1
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    Parent

    Component lower level functions

    The Functions manage the operation of users' accounts. They can use these accounts as a mechanism through which to pay for ITS services. Radiating from these Functions are several Data Flows, some of which enable the Functions to load and read data from Stores. The remainder enable the Functions to exchange data with other functionality in the Provide Electronic Payment Facilities Area and with the terminators. The Functions and Data Flows are contained in the DFD for Function 1.2 - DFD 1.2.

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description