A data module node represents technical information that is to be displayed on one screen. This screen can be scrollable.In a process data module, technical content is "wrapped" in the element <dmNode> structure allowing applicability (refer to Para ) and variable settings, using element <variablePreSet> (refer to Para ) and <variablePostSet> (refer to Para ), to be applied to the content. The element <title> provides a descriptive heading, which applies to the whole node.It is important to remember that the element <dmNode> represents one screen of data, and if a dialog or message appears on the screen, it must appear after a procedural step or by itself. Reasons for this are (1) dialogs can alter the state information possibly changing the applicability of something after the dialog on the screen, and (2) dialogs have navigation choices which would allow the user to exit the screen before reading everything on it.