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Preface
What this book is about
This book provides the information needed to extend and modify an IBM
®
CICS
®
Transaction Server for z/OS
®
system to match your requirements. It describes how
you can tailor your system by coding exit programs, by replacing specific
CICS-supplied default programs with versions that you write yourself, and by
adapting sample programs.
Who this book is for
This book is for those responsible for extending and enhancing a CICS system to
meet the special processing needs of an installation.
What you need to know to understand this book
To use this information, you must be familiar with some of the architecture of CICS
and the programming interface to CICS. Programming interface information is
described in the CICS Application Programming Reference and the CICS System
Programming Reference.
Resource definition information is described in the CICS Resource Definition Guide.
To use the following information, you must be familiar with the IBM ACF/VTAM
telecommunications access method:
v Chapter 9, “Writing a node error program,” on page 479
v Chapter 10, “Writing a program to control autoinstall of terminals,” on page 515
v Chapter 12, “Writing a program to control autoinstall of APPC connections,” on
page 543
If your task involves error processing, you might have to consult CICS Messages
and Codes, the CICS Problem Determination Guide,ortheCICS Diagnosis
Reference.
How to use this book
The parts and chapters of the book are self-contained. Use an individual part or
chapter as a guide when performing the task described in it.
Notes on terminology
In this book, the term “CICS”, used without any qualification, refers to the CICS
element of IBM CICS Transaction Server for z/OS. The term “VTAM” refers to
ACF/VTAM. The term “APPC” (advanced program-to-program communication)
refers to the LUTYPE6.2 intersystem connection (ISC) protocol.
The term “MVS” refers to those services and functions that are provided by the
Base Control Program (BCP) of OS/390
®
. The BCP is a base element of OS/390.
CICS Transaction Server for z/OS, Version 3 Release 2 supports CICS applications
written in:
v Assembler language
© Copyright IBM Corp. 1977, 2011 xvii