Abstract
Although the object-oriented paradigm is well suited for modelling self-contained independent objects, it is not suited for modelling persistent relations (static links) between abstract data objects. At the same time, the concept of computer-navigable links is an integral part of the hypermedia paradigm. In contrast to multimedia, where the object-oriented paradigm plays a leading role, this ‘static link’ deficiency considerably reduces the application of object-oriented methods in hypermedia. In this paper, we present a new logical data model (the HM Data Model) which incorporates the well-known principles of object-oriented data modelling into the management of large-scale, multi-user hypermedia databases. The model is based on the notion of abstract hypermedia data objects called S-collections. Computer-navigable links are encapsulated within a particular S-collection and are also bound between S-collections. This approach not only overcomes the static link deficiency of the object-oriented paradigm, but also supports modularity, incremental development, and flexible versioning, and provides a solid logical basis for semantic modelling.
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