This work describes a software engine which works with textual documents containing historical information. The purpose of this work three-fold: firstly to show the validity of the developed engine to correctly identify and label the entities of the universe of discourse with a labelled-combined XTM-DITA model. Secondly to analyze the improvements achieved in the interaction between people (users) and computers with a practical application of the designed methodology to a real-world problem in the semantic web area and thirdly to plan its future integration into a traceability system.

This item is not the definitive copy. Please use the following citation when referencing this material: Dillon, A., Richardson, J. and McKnight, C. (1990) Navigation in Hypertext: a critical review of the concept. In D.Diaper, D.Gilmore, G.Cockton and B.Shackel (eds.) Human-Computer Interaction-INTERACT'90. North Holland: Amsterdam, 587-592. Abstract: With the advent of hypertext it has become widely accepted that the departure from the so-called "linear" structure of paper increases the likelihood of readers or users becoming lost. In this paper we will discuss this aspect of hypertext in terms of its validity, the lessons to be learned from the psychology of navigation and the applicability of the navigation metaphor to the hypertext domain.

This item is not the definitive copy. Please use the following citation when referencing this material: Dillon, A. (2001) Usability Issues in Hypermedia. In: W. Karwowski (ed). Encyclopedia of Human Factors and Ergonomics. London: Taylor and Francis. 1. Introduction: Hypermedia is a general term used to describe the presentation of graphical, textual, audio and video information in nodes (chunks) that can be linked together and accessed in a manner determined by the immediate interests of the user. Originating as an idea for mechanized information access and organization that better reflected the natural workings of the human mind by Vannevar Bush (1945), the potential of the computer to provide the best means of supporting hypermedia was recognized early on by thinkers such as Ted Nelson and Doug Engelbart (for a historical overview see Conklin, 1987). The move toward hypermedia-based digital documents holds with it the promise of user-controlled, immediate access to the world of published information and stored data. While originally a specialist application domain, in the last few years the World Wide Web has brought to everyoneâ s desktop the power and problems of hypermedia interaction. Yet from the outset, human factors researchers have noted a range of user issues that prevent the simple transition from analog to digital resources

With the wide-spread adoption of hypermedia systems and the World Wide Web (WWW) in particular, these systems have evolved from simple systems with only textual content to those that incorporate a large content base, which consists of a wide variety of document types. Also, with the increase in the number of users, there has grown a need for these systems to be accessible to a wider range of users. Consequently, the growth of the systems along with the number and variety of users require new presentation and navigation mechanisms for a wider audience. One of the new presentation methods is the audio-only presentation of hypertext content and this research proposes a novel solution to this problem for complex and dynamic systems. The hypothesis is that the proposed Audio Browser is an efficient tool for presenting hypertext in audio format, which will prove to be useful for several applications including browsers for visually-impaired and remote users. The Audio Browser provides audio-only browsing of contents in a Petri-based hypertext system called Context-Aware Trellis (caT). It uses a combination of synthesized speech and pre-recorded speech to allow its user to listen to contents of documents, follow links, and get information about the navigation process. It also has mechanisms for navigating within documents in order to allow users to view contents more quickly.

Stuttgart, Univ., Fakultät Informatik, Diplomarb., 1997.

Saarbrücken, Univ., Diss., 2000.

Universiẗat, Diss., 2000--Kassel.

Zugl.: Tübingen, Univ., Diss., 2007

Techn. University, Diss., 2004--Darmstadt.

Universiẗat, Diss., 2000--Saarbrücken.