The ControlSystem event logic is PHP programming code which further checks the validity of incoming CS_Process_Events before the <b>event in question</b> may be posted to CS_Cases .
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The ControlSystem executes the CS_Event_Logic for the incoming event.  If the logic check passes, the <b>event in question</b> may be posted.  Otherwise, the <b>incoming event</b> is rejected with <i>Logic Violation</i> error.