Tracking changes made to the RECON data sets

For administrative purposes, it is a good practice to keep a log of the changes made to the RECON data set. You can provide your own exit routine which is to be called every time RECON records are changed or read.

This exit routine, also called the RECON I/O exit routine (DSPCEXT0), allows you to keep track of changes to the RECON data set in the form of a journal.

Related reading: See IMS Version 15.4 Exit Routines for detailed information about the RECON I/O exit routine.