====== Description ======
The data link proxy-node provides dependency network access to a data link.  The value of the data link can either be used directly in calculations or it can be compared to a list of arguments (either [[crisp argument|crisp]] or [[fuzzy argument|fuzzy]] arguments) to provide a trueness level.

The data link proxy-node can also be flagged as "required data" so that when its topic-node has no value it can communicate to its network that the network is not valid.  Otherwise NetWeaver just assigns the proxy-node a value of "undetermined.


====== Calculus ======
===== Compare Directly =====
If the compare directly option is used then the data link proxy-node returns the value of the data link.  In this mode the data link must either have a numeric data value (if it is a [[simple data link]]) or be a [[calculated data link]].

===== Compare to Arguments =====
If the compare to arguments option is used then data link proxy-node evaluates all of its arguments (they can be either [[netweaver:nodes:crisp argument|crisp]] or [[netweaver:nodes:fuzzy argument|fuzzy]]) and returns the value of the most true argument in the same fashion as an OR node.