IMS/DC Application Programming - Contents

This course covers, but is not limited to, the following topics:

Introduction to IMS/DC:

• DB and DC Comparison
• IMS Program Execution
• Batch Message Processing Program (BMP)
• IMS Message Scheduling
• Logical Terminal Concept
• IMS Message Types

IMS/DC Programming:

• IMS Commands
• The I/O PCB
• IMS/DC Program Execution
• Message Calls
• IMS/DC Status Codes
• Alternate Destinations
• Program to Program Messages
• Modifiable PCBs
• Express PCBs
• Conversational Processing

Conversational Programs:

• The Scratch Pad Area
• Conversational Program Structure

Checkpoint and Recovery:

• Commit Points
• Types of Checkpoint
• GSAM Database
• IMS DB Recovery
• IMS DB Backout

Batch Terminal Simulator (BTS):

• BTS Overview
• ./T Command Statement
• ./D Command Statement
• ./O Command Statement
• Other BTS Command Statements

Message Format Service (MFS):

• MFS Objectives
• MFS Message Descriptor
• MFS Device Format
• Application Programs & MFS
• MFS Control Block Chaining

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