Browse Prior Art Database

Partition Sets

IP.com Disclosure Number: IPCOM000050740D
Original Publication Date: 1982-Dec-01
Included in the Prior Art Database: 2005-Feb-10
Document File: 1 page(s) / 12K

Publishing Venue

IBM

Related People

Hopewell, P: AUTHOR

Abstract

Associated with each partition is a display buffer of a specified size, a screen area of specified size and position in which some or all of the data for this partition will be displayed, a specification of which part of the data will be initially displayed on the screen, and various attributes such as the size of characters in this partition. Partitions are initially created by a host application program. Different terminal types have different screen sizes and capabilities, and hence applications which run on several different terminal types will require different versions of its set of partitions for each terminal type. Thus larger screen areas will be defined for each partition on a large screen than on a smaller screen.

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Partition Sets

Associated with each partition is a display buffer of a specified size, a screen area of specified size and position in which some or all of the data for this partition will be displayed, a specification of which part of the data will be initially displayed on the screen, and various attributes such as the size of characters in this partition. Partitions are initially created by a host application program. Different terminal types have different screen sizes and capabilities, and hence applications which run on several different terminal types will require different versions of its set of partitions for each terminal type. Thus larger screen areas will be defined for each partition on a large screen than on a smaller screen.

A mechanism is therefore needed to allow an application programmer to easily define a set of partitions to be used by an application program, and to easily associate different versions of that set with different terminal types. This article describes such a mechanism.

CICS/VS Basic Mapping Support (BMS) contains a mechanism for defining screen formats or maps, and associating different versions of each format, perhaps with different literals and screen layout with different terminal types. The formats are defined offline via BMS macros, or via an interactive map definition program, Screen Definition Facility (SDF/CICS). Several versions of a format can be defined, each version identified by a one-character suffix appended to th...