1 introduction, Oracleas adapter for ims/tm overview, Introduction – Oracle Audio Technologies B31003-01 User Manual

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Introduction 1-1



Oracle Application Server Adapter for IMS/TM (OracleAS Adapter for IMS/TM)
enables you to connect Oracle Application Server to an Information Management
System-Transaction Management (IMS/TM) system. This section provides an
overview of the features and architecture of OracleAS Adapter for IMS/TM.

This section contains the following topics:

OracleAS Adapter for IMS/TM Overview

OracleAS Adapter for IMS/TM Architecture

OracleAS Adapter for IMS/TM Overview

IMS/TM is a high-performance transaction management system that is part of the IBM
IMS product family.

The application components in IMS/TM are executable programs called transactions.
These programs are typically written in COBOL but may possibly be written in other
languages, such as PL/I, C and even Java. There are several types of IMS/TM
programs including MPPs (Message Processing Programs) and BMP (Batch Message
Processing Programs).

IMS/TM transaction are invoked using an API called OTMA (Open Transaction
Manager Access) as well as through 3270 terminals. IMS/TM transactions are built
around an input message-output message concept with a special layer (MFS)
translating the message to the screen and back, for a user interface.

In addition to OTMA, there is also an IMS/TM transaction gateway that enables
TCP/IP access to IMS/TM transactions.

OracleAS Adapter for IMS/TM includes the following features:

Captures and maintains a metadata schema for IMS/TM by importing COBOL
copybooks and transforming them into mapping definitions for Oracle Connect on
the OS/390 or z/OS Series platform and by associating the data structures with
specific physical files.

Utilizes an enterprise application integration (EAI) model. Users of a requesting
application can model the interactions that they want implemented, specifying
what each interaction does, when it occurs, and the inputs and outputs expected
for each interaction.

Provides access to MPP based IMS/TM transactions. Each OracleAS Adapter for
IMS/TM outbound interaction is mapped to a specific IMS/TM transaction.

Maps data structures for facilitating access to IMS/TM transactions from within