The H Factor of a media-type is a measurement of the level of hypermedia support and sophistication of a media-type. H Factor values can be used to compare and contrast media types in order to aid in selecting the proper media-type(s) for your implementation. H-Factor values are made up of two parts, each with their own set of factors: [MCA: Is this a complete list? overkill?] Link Support [LE]Emb