When you complete this section, you will have an understanding of what is required in an application program to perform interactive processing in the IMS online environment.
This section on IMS online coding covers the following:
Programming in the IMS online environment
Online communication:
Data Base Processing (DB)
Data Communications Processing (DC)
Combination Processing (DB/DC)
Input/Output Program Communication Block (I/O PCB)
DL/I Call Format
I/O PCB Mask
Message Processing - Input
Message text I/O Areas
Retrieving messages using DL/I
Message Processing - Output
Sending messages using DL/I
Purge Call
Dynamic Attribute Modification
Message Processing - Alternate
Alternate PCB Mask
Change Call
Conversational programs
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