Search (380 results, page 18 of 19)

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Abstract

Presents a model for an electronic book (hyper-book). Hyper-books are electronic books defined on the basis of the paper book metaphor. Gives a formal definition of the hyper-book model as a dynamic system. The model was implemented in a working system, and evaluated with a group of users. The evaluation has confirmed that the adoption of the book metaphor is very effective, as it guarantees ease of using and understanding the system

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Abstract

At the time being, there is a lot of different systems claiming to be either multimedia, hypermedia, or supporting collaborative, cooperative work. In this paper, a first attempt to clearify the notions of these concepts is tried. Multimedia content, hyperstructure organization and cooperative access will be identified as different features of an intelligent document. These features will be discussed under formal, information technology and implementation aspects

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Abstract

The Hyperlib project, which is a joint, EC-funded project, between the libraries of Antwerp and Loughborough universities, aims to investigate the opportunities for a hypertext-structured catalogue at Antwerp University. Essential to the project was a survey of user requirements. Because of time constraints, however, it proved impossible to develop a full hypertext-structured database. As a result of the project a redesigned OPAC will be implemented in Spring 95, which will include individual journal article sand the opportunity to create personalised menu-structures

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Abstract

Provides an overview of hypermedia and hypertext systems including some historical background, a definiton of the technology, and a description of the basic concepts, navigation of a network, principal characteristics of the interface, and the provision of storage. Provides an example of a hypertext application in the information field: an experimental bibliographic hypercatalogue. Discusses the difficulties associated with hypertext systems, describes some experiments and applications, offers some predictions and some suggestions for further research

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Abstract

Emphasises how important it is for documentalists to be aware of the mechanics of text. The documentalist cannot ignore the meaning of intertext, infratext, context and extratext, identifying the author indentification of document authorship, based on infratextual analyses. Emphasis the role played by hypertext in information development, printing out the possibilities introduced by new technology.

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Abstract

Discusses 3 methods of migrating existing non hypermedia applications to provide hypermedia services. Presents a brief review of hypermedia data models and provides an overview of 2 methods of retrofitting an existing application, both of which are based on traditional hypermedia architectures. Offers a new mechanism for retrofitting existing applications that results in an open and integrated application environment. Discusses a model of the mechanism, implementation details, and procedure for converting application to utilize the mechanism. Describes some concerns and constraints that guided the research, limitations of the mechniasm and future research

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Abstract

The 2 issues that are central to most of the discussions about the educational uses of electronic technology are sorting out the difference between potential and reality, and the question of timing. Describes the educational uses of multimedia, hypermedia and the Internet providing a taxonomy of the various applications and looking at how these technologies may be best used to deliver an improvement in the standard of educational practice

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Abstract

Presents an alternative paradigm to the traditional Knowlegde Based Expert System Paradigm for developing a full-scale Intelligent Tutoring System (ITS). This alternative paradigm integrates Minsky's Frames with hypertext and has been successfully deployed in the development of PEDRO, an ITS for foreign language learning, SONATA, an ITS for music theory learning and INTUITION, an ITS for gaming-simulation

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Abstract

Describes techniques to add navigational features into object-oriented applications at the information system level by using the application model as the basis for the hypermedia model and placing the navigational features in a different layer. This allows the application's function to be augmented without polluting the base model. Describes an object-oriented framework for hypermedia issues; a hybrid application for a library system; framework specification; and hypermedia level architecture

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Abstract

Discusses 3 levels of requirements for testing hypertext applications: the validation of the information contained in each node of the hypertext; the verification of the correctness of the implementation of the links between the nodes; and the evaluation of the system structure for testing the usability. For each level of the requirements, proposes test adequacy criteria and gives algorithms for generating adequate test suites of minimum cost. Based on the analysis, develops a software testing tool to support the efficient management of a hypertext testing process

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Abstract

Proposes a set of measures for assessing the usability of hypertext systems. Defines various path measures from which indicators, and rating of users' lostness, efficiency and confidence when using a hypertext system are derived. Discusses an initial experimental evaluation of the measures. Discusses the method by which the measures were calibrated using both an attitudinal study and the verbal and video protocols recorded as part of the experiment. Analyzes the situations in which these measures may be appropriate

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Abstract

Presents a set of high-level hypermedia features: typed nodes and links, link attributes, structure-based query, transclusion, warm and hot links, private and public linkds, external link databases, link update mechanisms, overview, trails guided tours, backtracking and history-based navigation. Illustrates each feature from existing implementations and a running scenario. Gives suggestions for implementing these on the WWW and in other information systems

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Abstract

In many hypertext systems authors are encouraged to create hierachical structures, but when writing, the hierarchy is lost because of the inclusion of cross-reference links. Looks at ways of recovering lost hierarchies and finding new ones, offering authors different views of the same hypertext. Identifies properties of the hypertext document. Develops multiple metrics including compactness and stratum - compactness indicates the intrinsic connectedness of the hypertext, and stratum reveals to what degree the hypertext is organised so that some nodes must be read before others. Uses several exosting hypertexts to illustrate the benefits of each technique. The collection of techniques provides a multifaceted view of the hypertext, which should allow authors to reduce undesired structured complexity and create documents that readers can transverse more easily

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Abstract

The paper considers some of the problems of negotiation for development in the specific context of formal meetings, where protocol may act as an agent of opacity rather than transparency. The autor suggests that briefing based on hypertext (deep briefing) might improve the quality of meetings and thus of effective action. Two primary features of this technology, easy cross-linking across a wide range of material and the ability to follow a trail of links through material allow users to check the sources of documents rapidly and accurately and to audit the contribution of human representatives at meetings. Hypertext can thus enhance responsibility and accountability

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Abstract

It is accepted wisdom that documents should be represented in terms of their logical structure rather than their appearance. Nevertheless most of the popular document processing systems concentrate on appearance rather than structure, mainly because most users opt for a user interface that is interactive, simple and direct. Considers issues related to fonts and other appearance attributes within hypertext documents. Presents the relevant differences between hypertext systems and document preparation systems whose end product is paper Describes schemes for representing appearance through logical structure. The scheme aims to meet the extra needs of hypertext systems, and yet still to be simple enough to attract wide usage.

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Abstract

The Canto hypertext data model is chracterized by a hierarchical scheme mechanism that allows a predetermined, open-ended scheme to be embedded in the hyperdocument. Canto uses 2 types of nodes: concept nodes, which provide organizational structure, and information nodes, which contain text and other data. Describes the model, explains how it reduces user disorientation and discuss the most important features. Presents a formal specification of Canto's functionally and discusses the scheme definition language that a hypertext system designer uses to establish a hypertext scheme. Presents the scheme manipulation language which allows for alterations to the scheme and data. Describes a test conducted to determine the usability of hypertext systems built using Canto and discusses related work

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Abstract

This paper suggests a standard format for creating hypermedia software. Teachers and students of literature have taken up the use of hypermedia technology enthusiastically and so we are rapidly arriving at a situation where a mushrooming of software for language and literature teaching will be faced. We will arrive much sooner at a situation where searching for an appropriate software would be as difficult as finding an appropriate article today. Technology is expected to optimise information to maximise knowledge: the confusion created by Gutenberg's invention is because duplication cannot be avoided. The suggested format is based on the major pillars of literary criticism - author centred, text centred and reader centred - and develops from the word to the work level. The findings have been demonstrated in the form of Technocriticism, a hypermedia program created on HyperCard