HP Integrity NonStop J-Series - Manual (Page 21)

INTRODUCTION TO ENABLE
Why Use ENABLE?
WHY USE ENABLE?
ENABLE reduces the amount of time needed to develop a simple
application, thereby decreasing application development costs.
To write a simple application in a conventional programming
language could take hours, days, or even weeks of work. If you
use ENABLE to generate the same application, you can be finished
in a matter of minutes. ENABLE allows you to:
• Control the format of the screen displayed by the
application
• Limit the types of operations (delete, insert, read, or
update) that the application can perform on a data base file
• Define a method that the application uses to ensure the
integrity of a data base file
Although ENABLE provides you with enough flexibility to tailor a
simple application, an ENABLE application is not suitable for
every purpose. An ENABLE application, for example, can neither
perform mathematical calculations nor ensure the consistency of
your data base files. ENABLE does, however, provide several
options that allow you to modify an application and supply your
own calculations or integrity constraints.
A standard ENABLE application (one that has not been modified)
can be used as:
• A prototype of a more complex application--An analyst, for
example, might use an application generated by ENABLE as a
basis for determining end-user needs.
• A data entry program--An application generated by ENABLE can
be used to enter information into a data base that will
ultimately be maintained by a more complex application.
• A tool to maintain a personal data base--Any individual can
use an application generated by ENABLE to maintain their
personal data base files.
If you modify an ENABLE application, it can be:
• Integrated into an existing PATHWAY system--Within the
PATHWAY system, you could use the application to list
information from one or more data base files or to retrieve
information used for another component of the PATHWAY system.
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