FOHM: a fundamental open hypertext model for investigating interoperability between hypertext domains

The Open Hypermedia Systems community has been largely concerned with interoperability between hypertext systems which share the same paradigm. It has evolved a component based framework for this purpose, in which specific but incompatible middleware components are designed for each hypertext domain, such as navigational hypertext, spatial hypertext or taxonomic hypertext. This paper investigates the common features of these domains and introduces FOHM, a Fundamental Open Hypertext Model, which defines a common data model and set of related operations that are applicable for all three domains. Using this layer the paper explores the possible semantics of linking between different hypertext domains, and shows that each can introduce features which benefit the other domains.

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