The ActionNode is a single, simple step in the program flow to perform an action (Example: Assignment, Increment, ListInsertItem, ExecuteDiagService, message dialog etc.). A ActionNode may not, have one or more realizations, seeValidity Konzept. In a ActionNode multiple implementations at run time, the first action (from left) performed their ValidFor-Expression is True.

nodes in action without realizing OTX (left), with a realization (middle) or with several realizations (right)