HP 3000 Manuals HP 3000 Manuals
The HP ALLBASE/4GL System HP ALLBASE/4GL is an advanced fourth generation computer programming language. It enables application developers to design and implement application software by defining the required results rather than the procedures necessary to achieve those results. The HP ALLBASE/4GL system exists in two forms, called the HP ALLBASE/4GL Run-Time Environment and the HP ALLBASE/4GL Developer System. The next few paragraphs outline the purpose of these two parts of the system. HP ALLBASE/4GL Run-Time Environment The run-time environment provides facilities for: * Running HP ALLBASE/4GL applications. * Performing centralized system administration. This manual describes the centralized system administration facilities provided by the run-time environment. HP ALLBASE/4GL Developer System The developer system contains all the facilities of the run-time environment, plus an additional set of facilities called the HP ALLBASE/4GL developer. Application programmers use the HP ALLBASE/4GL developer system to develop new applications or modify existing applications. When an application has been completed in the developer environment, it can be moved to a run-time environment using the HP ALLBASE/4GL application unloading and loading utilities. HP ALLBASE/4GL System Architecture Both forms of HP ALLBASE/4GL contain the following major functional components: * The administrator application. * End user applications. * The operating system interface. * The data manager. The HP ALLBASE/4GL developer system contains the HP ALLBASE/4GL developer application in addition to these components. The Administrator Application. The HP ALLBASE/4GL administrator is in fact an HP ALLBASE/4GL application. Its name is administ. As system administrator, you will use the administrator application to control the overall operation of the HP ALLBASE/4GL system. The administrator application allows you to control system security and to define various system-wide defaults. It also has facilities for loading and deleting applications. End User Applications. HP ALLBASE/4GL supports two types of end user applications: * Base applications. * Versions. A base application is a complete application in itself. It contains all the necessary logic to perform its designed data processing functions. A version is a set of additional parameters that operate in conjunction with a base application to customize it for a particular end user or a group of end users. Versions cannot exist unless the base application exists on the same HP ALLBASE/4GL system. The Operating System Interface. The HP ALLBASE/4GL operating system interface handles all the communication between HP ALLBASE/4GL and the host operating system. For the most part, you won't need to use MPE/iX commands while working with the HP ALLBASE/4GL administrator. However, some aspects of managing the HP ALLBASE/4GL system will be easier to understand if you are familiar with the rudiments of the MPE/iX operating system.