Navigation in Hypertext
Node metrics are designed to determine the properties of particular nodes in hypertext. Two popular node metrics are depth and imbalance.
Depth of a node is the distance from it to the root. The bigger the distance of a node from the root, the harder it is for the reader to reach this node and consequently the less important this node will be in the hypertext. Nodes that are very deep inside the hypertext are unlikely to be read by the majority of the readers. Such nodes might indicate possible bugs in this hypertext [Botafogo].
Imbalance indicates whether number of subideas of many ideas at the same level are equal. Actually, this is not an important issue. The real important thing is that each topic is fully developed.
Last modified: 6 Nov 2002 by Kathy Nguyen Dang