T24 User Guide - Page 26

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T24 Application Development

The Infrastructure

Introduction

The T24 infrastructure provides many features so that the developer does not need to write or even

consider these items. This section gives an overview of these features.

Screen Management

One of the most important aspects of the infrastructure is its screen management capability. Once the

application has defined the input fields for the transaction, the infrastructure will present a standard screen

for input, display, authorisation, history comparison etc. It will also handle field positioning, page

manipulation, data formatting, input enrichment etc. which means that whilst the applications may differ

dramatically, the user will always be presented with a standard mechanism for entry or data manipulation.

However, this does not mean that the user is constrained to one design of entry screen. The infrastructure

also allows a 'version' of the screen to be defined without any coding changes necessary at the

application end (see the Version System Administration Guide). The data is presented both in ‘classic’ text

based screens and in T24 Browser: neither type of display requires modifications to the application

program.

Data Entry Functions

The infrastructure provides all the necessary transaction processing functions necessary to complete an

application.

• Input a record

• Modify an existing record

• Display a record

• Delete a record

• Copy a record

• Authorise a record

• Reverse an authorised record

• Compare history records

• Restore a record from history

• List all or a selection of records

In the simplest case, to achieve this functionality the programmer would simply have to enter the field

definitions. For more complicated processing the extension points for the specialised code necessary for

authorisation, deletion are needed.

Security Management

The infrastructure provides two important aspects of security management, Access restriction and

Activity logging.

System access can be controlled on four levels: system sign-on (including time restrictions), entry to

applications and data records, restricting functionality (e.g. allowing display only) and defining the field

values with can be entered (e.g. amount < 10,000).

Logging can be specified from simply recording sign on/off times to recording every access the user

makes.

TEMENOS T24 User Guide Page 26 of 34

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