The Non-Formatted Input/Output (NOF) interface facility is a means by which an external terminal or an external program can initiate and send a transaction to an application.

This appendix outlines the process flow of the NOF skeleton program provided on your release media. Use this program as the basis for implementing your NOF interfaces.

The flow diagram in the figure below shows the main routines involved in handling a message. Notice that the main loop routine ML-01 is reentered each time a new message is processed.

Flow Diagram for the NOF Skeleton Program