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IMS Transaction Monitor with Message Format Services (MFS)
Mainframe Training Overview

The course is a series of lectures, discussions, written exercises, and programming exercises dealing with the concepts, capabilities, and coding for IMS Transaction Monitor programs.

Students will design terminal screens and code Message Format Services (MFS) macros to implement those screen designs.

The students will modify a skeleton COBOL program to receive an input message (from an on-line terminal), process that message, and send a message (to an on-line terminal), change screen attributes, send a message to another program, and use PFF keys.

The Batch Terminal Simulator (BTS) is used for Program testing.

Mainframe Training Learning Objectives

Upon successful completion of the course, each student will be able to -

  • Explain the relationship among terminals, messages, programs
  • Code MFS macros that describe on-line screens and messages
  • Modify a skeleton COBOL program to access IMS terminals
  • Code Data Language I (DL/I) calls for the following -
    • Get a message (GU) from a terminal
    • Insert a message (ISRT) to a terminal
    • Insert a message (ISRT) to another program
    • Change (CHNG) the destination for a message
  • Code program IO-AREAs to match a terminal messages
  • Code status code checking to determine each call's success
  • Modify Batch Terminal Simulator (BTS) control statements
  • Code the use of PF Keys
  • Change screen attributes from the program
Mainframe Training Audience

This course is for students who must understand and code programs that run in the IMS Transaction Monitor environment.

Mainframe Training Prerequisites

IMS Database programming experience is NOT required. Six months experience with COBOL, TSO/PDF and JCL is required.

Mainframe Training Course duration

5 days

Mainframe Training Course outline

Day 1 - Course Introduction
 
        1. IMS Data Communications - Overview

        2. Message Format Services - 1

                Workshop 1 - Code DIF/DOF

                Message Format Services - 2

                Workshop 2 - Code MID/MOD

Day 2
 
        3. IMS Application Programming

                Workshop 3 - Code Sign-on Program

        4. Batch Terminal Simulator (BTS)

                Workshop 4 - Test Sign-on Program

                Workshop 5 - Code and Test Menu Program

Day 3
 
        5. Additional IMS/DC Features

                - PF Keys

                Workshop 6 - Add PF keys

Day 4
 
        5. Additional IMS/DC Features (Continued)

                - Dynamic Attribute Modification

                Workshop 7 - Add Changing Attribute Bytes

                - Operator Logical Paging

Day 5
 
        5. Additional IMS/DC Features (Continued)

                Workshop 8 - Add Operator Logical Paging

                Batch Message Program (GSAM, CHKP/XRST)

                Processing Modes

                Express Output Messages

                UN-Doing Processing - the ROLL back (ROLL, ROLB)

                Conversational Processing

                Workshop 9 - Code and Test "Batch Message" program

        6. Batch Message Program (BMP)

                Change a "batch" program to a BMP

                Checkpoints - CHKP vs XRST

                Sample Program

                GSAM DataBases

Appendices
 
        A - Workshop Exercise

        B - Bibliography

        C - The "Big Picture" of IMS/DC


 
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