Overview

Learn how to write application programs that use Data Language One (DL/I) to process terminal input and output messages in an Information Management System / Data Communications (IMS/DC) system.

Audience

This intermediate course is for individuals responsible for writing programs in Common Business Oriented Language (COBOL), or Programming Language One (PL/I) using DL/I to communicate with terminals in an IMS/DC system.

Prerequisites

You should:

• complete:
  • IMS Fundamentals (CM010) or IMS Fundamentals -Web (CMW01)
  • IMS DB Application Programming (U3717)

• or be able to:
  • Describe the basic control and flow of IMS/DC communications facilities
  • Understand the DL/I components and calls of a database application program
  • Modify a program in COBOL or PL/I to add IMS/DC functions

Objective

• Modify an IMS batch DL/I application program to function in an IMS/DC environment: receiving a message from a terminal and sending output messages to terminals
• Handle the exception conditions that may occur using DL/I functions
• Work with Scratch Pad Areas (SPA) in an IMS-conversational program
• Understand the application program considerations in using Message Format Services (MFS) and the system service functions data structures

Course Outline

• IMS TM System Overview
• Message Processing Programming
• Get/Send Terminal Data
• Message Format Services (MFS)
• Create and use MFS control blocks
• IMS/TM Additional Facilities