Bob Yelavich's Glossary of CICS-related Terms & Abbreviations

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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H

HACL

Host Access Class Library. A set of Java classes and methods provided as part of IBM's HOD, to be used for development of platform independentg applications that can access host information (e.g. CICS).

half-duplex

A term used to describe a terminal or logical unit with operates in half-duplex, flip-flop made, sending and receiving data in an alternating fashion, but not both at the same time (full duplex).

HANDLE ABEND

A CICS command used to activate, cancel or reactivate an exit for abnormal condition processing.

HANDLE AID

A CICS command which specifies the address of a routine to receive control when an AID is received, based on the method used to initiate the input (e.g. PA key, PF key, enter key, etc).

HANDLE

A CICS command whereby an application can specify particular exception conditions for which it wants to receive control, should the condition occur.

hash, hashing

A program algorith typically used to reduce a larger field of data into a smaller one, possible of fixed length. The output of hashing is often used as the key to locate other data.

HDX-CON

Half duplex contention. An SNA protocol.

HDX-FF

Half duplex flip flop. An SNA protocol.

heap

A heap is an area of storage used for some specific or some general purpose (e.g. to contain objects created by application classes).

HFS

Hierarchical File System. A UNIX file organization.

HLASM

High Level Assembler. A programming language for the IBM S/390.

HLL

High Level Language.

HLQ

High Level Qualifier. A product or user specified high level name(s) for a multi-part data set name (e.g. hlqname.user.name).

HOD

Host On Demand. An IBM product that provides downloadable terminal emulation software from a web server.

Home

1. An interface to an EJB server which provides life cycle support for clients accessing an enterprise bean (create, remove, etc).
2. A general term used to describe the logical owner of an object.

HONEOM

Honor end of message. An option used in conjunction with 3270 printers causing the printer to stop printing when encountering an end message character in the device's buffer.

HP

Hewlett-Packard. A manufacturer of computer equipment.

HP-UX

Hewlett-Packard UNIX-based. An UNIX-based operating system.

HPJ

High Performance Java. A command, part of ET/390, used to bind Java byte codes into Java program objects for use in the CICS environment. A Java application program compiled into machine code.

HPO

High Performance Option. An option to improve CICS performance through the use of the VTAM authorized path, which shortens instruction pathlength by not executing certain checking routines (CICS is a trusted user of VTAM).

HR

1. Human Resources. A common application usually providing information about employees and benefits.
2. Horizontal rule. An HTML tag to include a horizontal line in the text.

HSDATA

Hiperspace data buffers. VSAM LSR buffers can be located in MVS hiperspace.

HSINDEX

Hiperspace index buffers. VSAM LSR buffers can be located in MVS hiperspace.

HTML

Hypertext Markup Language. A tag-oriented language, imbedded in a data stream, instructing the recipient how to display the data.

HTTP

HyperText Transfer Protocol. A protocol used on the Internet which indicates a request or response.

HTTPS

An SSL version of HyperText Transfer Protocol.

A B C D E F G H I J K L M N O P Q R S T U V W X Y Z

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© 2000-2001 Bob Yelavich