A unit, or node , in the network can be a book, a chapter, a paragraph, a definition, an essay, a picture, a reference, etc. By linking nodes together, using several types of semantic relations, multiple hierarchical orderings of the network will be maintained, giving both readers and authors flexible access to every part of the system. Such a system is intended to allow the dynamic development of a multidimensional system fully reflecting and incorporating the semantic relations inherent among the terms being explicated. Each node will typically represent a separate concept, and contain at least a definition and an exposition. The definition defines the concept in terms of other concepts, by providing specific semantic links to those concepts.
Primitive terms are undefined, or implicitly defined by their links with other primitive concepts.