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Fig. 11.21 Create New Rule Set Form

The Cornerstone Case Data panel allows a set of cornerstone data for the new
rule to be defined, via the Attribute and Value inputs, and the Add button. The
standard XML naming rules apply to the data attributes: the attribute name must
begin with an alpha character or underscore and contain no spaces or special
characters.
The Effective Composite Rule panel displays a properly indented textual inter-
pretation of the composite condition comprising the conditions of the selected
node and all ancestor nodes back to the root node – in other words, the entire
composite condition that must evaluate to true for the conclusion of the selected
node to be returned.
The RDR Tree panel dynamically and graphically displays the new rule tree as it
is being created.

New rule nodes can be added wherever there is a node on the tree that does not
have a child node on both its true and false branches (except of course the root
node, which can have a true branch only). To identify available locations where a
new rule node may be added, special “potential” nodes are displayed in the RDR
Tree panel, called “New True Node” or “New False Node.” These potential nodes
are colored yellow for easy identification. Selecting a yellow new rule node enables
the various inputs for the new rule on the form (they are disabled or read-only by