High Level Function 1.3 Perform Electronic Payment Transaction
 Diagram   Definition   
DFD 1.3 Perform Electronic Payment Transaction

DFD 1.3 Perform Electronic Payment Transaction

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

Overview

This High-level Function shall process the transaction.  It shall identify the user, check the contract he or she has with the EFC Operator, and then guides him or her through the transaction.  The Function shall compute the corresponding fee, and, after checking that advanced payment hasn't been made, recover it.

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 identify that a user has to pay and if no advanced payment has been made, collect the payment. Radiating from these Functions are a large number of Data Flows, some of which enable the Functions to exchange data with each other. The remainder enable the Functions to exchange data with other parts of the Provide Electronic Payment Facilities Area, with other Areas and with the terminators. The Functions and Data Flows are contained in the DFD for Function 1.3 - DFD 1.3.

    Input logical dataflows

    Output logical dataflows

    User needs

    Number

    Description