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Review of Message Delivery Rules

The principal difference between inline and dependent command execution is the message delivery that applies to the two different techniques.

A process that issues an inline command never sees the results of the command; the results are always returned to the owner of the NCL processing environment in which the process is running.

A process that issues a dependent command sees the results of the command because they are queued to its dependent response queue and can be read using the &INTREAD statement.