HDM—a model-based approach to hypertext application design

  • Authors:

  • Franca Garzotto;Paolo Paolini;Daniel Schwabe

  • Affiliations:

  • Politecnico di Milano, Milan, Italy;Politecnico di Milano, Milan, Italy;Pontifi´cia Univ. Cato´lica do Rio de Janeiro, Rio de Janeiro, Brazil

  • Venue:
  • ACM Transactions on Information Systems (TOIS)
  • Year:
  • 1993

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Abstract

Hypertext development should benefit from a systematic, structured development, especially in the case of large and complex applications. A structured approach to hypertext development suggests the notion of authoring-in-the-large. Authoring-in-the-large allows the description of overall classes of information elements and navigational structures of complex applications without much concern with implementation details, and in a system-independent manner. The paper presents HDM (Hypertext Design Model), a first step towards defining a general purpose model for authoring-in-the-large. Some of the most innovative features of HDM are: the notion of perspective; the identification of different categories of links (structural links, application links, and perspective links) with different representational roles; the distinction between hyperbase and access structures; and the possibility of easily integrating the structure of a hypertext application with its browsing semantics. HDM can be used in different manners: as a modeling device or as an implementation device. As a modeling device, it supports producing high level specifications of existing or to-be-developed applications. As an implementation device, it is the basis for designing tools that directly support application development. One of the central advantages of HDM in the design and practical construction of hypertext applications is that the definition of a significant number of links can be derived automatically from a conceptual-design level description. Examples of usage of HDM are also included.