Importance

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Abstract

A method for generating display screens for a set of application programs allows application programmers to write programs without having to code the specific locations on a computer display screen where information and data are to be displayed in fields of various display screens of the set of application programs. A series of screen management subroutines are callable from an application program. A display screen is defined by loading one or more arrays of screen specification data indicative of information and data to be displayed. The display screen may be defined by loading the arrays by an application program using data contained in a screen driver file or alternatively by supplying the data to the arrays by means of data statements. The display screen is managed by calling subroutines to read screen specifications, to display screen headings, to display data fields and to read data fields. In addition, a subroutine is executed once per application program to dimension the arrays by specifying the size of the arrays, the number of elements in an array being the number of data statements defined for the largest screen to be processed by the program plus one.

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First Claim