Search (94 results, page 1 of 5)

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Abstract

Discusses the potential of hypertext for creating all manner of information resources to fill the gaps where free text and structured database systems are inappropriate. Describes the tools required to create and distribute a variety of hypertext information resources, all available, affordable and easy to use. These include: the Microsoft Windows graphical user interface and Windows help system and special features offered: a Rich Text Format word processing program (Word for Windows) and Microsoft Windows Help Compiler for authoring Windows Help hyperdocuments; and the OrgMap Help data file. Outlines the limitations of hypüerdocument information resources

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Abstract

Large hypertext systems have been many benefits but can be difficult to build and use. To help overcome these obstacles, a method under development at Hewlett-Packard assists authors in creating usable hypertext. A Wizard of Oz experiment, to see what users liked and disliked, showed the need for a set of hypertext construction rules to ensure usability. Following these rules, and with computer assistance, authors are expected to do a tasks analysis of users' activities, to identify critical objects and create content nodes for them, to create links between nodes within clearly defined and cognitively justified limits, and to conduct usability tests on the resulting hypertext volume. The authoring system described has been developed for the HP help system, which has been adopted as the common help delivery system for developers of Common Open Systems Environment on Unix-like platforms

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Abstract

Hypermedia programs are an important concept in interactive computing because they provide ransom access to large databases of multimedia information. However, users tend to become lost and disorientated in these programs. Hypermedia interfaces must help the user understand the psychodynamics of the technology and provide navigational aids for orientation. Shows how hypermedia interfaces can use graphic design and language to help the user strucutre a cognitive approach to information retrieval that puts the use in control of the navigation process

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Abstract

Navigation problems in a hypertext migth be reduced, if mutiple, coherent views of the hypertext were available. Document outlines help readers appreciate the structure and meaning of the document. Proposes measures of syntactic and lexical balance in an outline and show in a sample of documents the degree to which these balances occur. Based on balance in an outline, a method for semi-automatically generating an alternative outline is applied to one textbook. The textbook with both its original and its alternative outline is availbale in hypertext, and subjects who were asked to evaluate this hypertext noted that the alternative outline would help readers compare concepts in the textbook

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Abstract

Assessment tests and practical experiences have lead to design guidelines for hypertext systems. A library information system was tested twice by potential users. Presents guidelines with regards to user groups, browsing and navigation through the system, structure of the system, help functions and integration with other systems

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Abstract

The concepts of hypertext, multimedia and hypermedia are often confused, but can defined thus: hypertext is text with links, multimedia is synchronized media, and hypermedia is multimedia with links. Presents descriptions of systems for hypertext, multimedia and hypermedia. The computer storage and processing requirements for multimedia are orders of magnitudes greater than those for hypertext. Nevertheless, the hypertext model can be extended to deal with hypermedia by including multimedia synchronization capabilities. Information technology and its associated terminology should help people effectively compare experiences and thus have more influence on future developments

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Abstract

Hypertext Handbook provides a condensed and straightforward introduction to the main issues, concepts, and developments in both the application of hypertext technology and its interpretation by the academic community. It offers a concise history of the medium in a manner that will help readers to better understand contemporary directions in digital media technology. Hypertext Handbook provides a comprehensive guide to this complex concept and is designed to inform and inspire students and scholars alike.

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Abstract

Project Jefferson was designed to help new students at the University of Southern California (USC) to acquire skills necessary for writing research papers through the example of research into ethical issues raised by the US Constitution. It runs on Macintosh Computers and is based on Apple Computer's HyperCard, a system wich allows users to browse different sources of information at their own pace and along their own routes while noting down useful discoveries in the notebook part of the system. Access to USC's locally mounted bibliographic data bases is also given without any tedious logging-on routines.

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Abstract

Proceeds on the assumption that the key to unlocking the navigation potential of hypertext and hypermedia systems lies in the more semantics aware indexing of the interrelated information stored in these systems. Highlights the different indexing techniques which have been proposed for hypertext and hypermedia systems, and discusses the so called semantic hyperindexing technique recently developed by the authors, at The Materials Information processing Systems group of the Department of Metallurgy and Materials Engineering, Katholieke Universiteit Leuven, Belgium, to represent the significant relations between hypertextual information. Describes in detail how the semantic hyperindexing technique is being used to support intensional navigation in a third order hypermedia system, based on the definition of meaningful traversal trails between semantically associated nodes, which the user can navigate freely while still being gently guided by the system. Concludes with a description of a graphical notation developed to help authors in visualizing these intensionally defined transversal trails and discusses how the use of this notation improves the productiveness of the authors during trail design

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Abstract

Current hypertext systems suffer from the limitations that they are static in nature, and they do not support the automated process of link creation very well. Studies the development of automated tools to aid in the process of link creation, browsing, and link refinement. Only relation links are considered in the study. Automated tools are developed to help in 3 main stages of developing and using hypertext applications: during authoring to generate a set of relation links between pairs of nodes; during browsing to recommends an optimal set of starting nodes for the users to begin browsing, and to guide the users at each stage of browsing by suggesting a set of 'next' nodes to trverse; and during training to modify, remove and add links based on users' feedback data. Evaluation of the training procress indicates improved effectiveness of the hyperbase to support browsing

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Abstract

The present study adopts an interpretive and situated approach to observe and assess learners' problem solving using hypermedia. The evaluation is conducted in context by considering the use of Perseus in particular learning situations. The study reflects on the design and use of hypermedia learning systems from both the learners' and researcher's perspective. The characteristics of Perseus are discussed together with some design recommendations for future consideration. Drawing from the study, conclusions are set out that highlight some implications for designers. It should be noted that the list of suggested features is not meant to be either definitive or exhaustive. The list is indicative of which design considerations should be addressed to improve Perseus hypermedia learning systems in the future. The researcher hopes that the findings of the study can help designers develop and refine better intellectual tools with which to augment learners' performance

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Abstract

Interactive dynamic maps (IDMs) help users interactively explore webs of hypermedia documents. IDMs provide automatically generated abstract graphical views at different levels of granularity. Visual cues give users a better understanding of the content of the web, which results in better navigation control and more accurate and effective expressions of queries. IDMs consist of: topic maps, which provide visual abstractions of the semantic content of a web documents and document maps, which provide visual abstractions of subsets of documents. The major contribution of this work include: automatique techniques for building maps directly from a web of documents, including extraction of semantic content and use of a spatial metaphor for generating layout and filing space, a direct manipulation interaction paradigm for exploring webs of documents, using maps and an integrated graphical query language, and the ability to use the maps themselves as documents that can be customized, stored in a library and shared among users

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Abstract

Der Beitrag versucht, die denkbaren Anwendungen des Hypertext- und Hypermedia-Konzepts im Bibliotheksbereich aufzuzeigen und zu bewerten. Im ersten Teil wird nach einem kurzen historischen Abriß der beiden Begriffe Hypertext und Hypermedia, ihrer Definition und Beschreibung, auf die sich hinter ihnen verbergende neue Art der Datenorganisation und die sich daraus ergebenden Möglichkeiten und Probleme eingegangen. Im zweiten Teil werden dann die bibliotheksspezifischen Einsatzmöglichkeiten des Hypertext- und Hypermedia-Konzepts erörtert und einige bereits realisierte Anwendungen im Bibliotheksbereich vorgestellt

Source

Bibliothek: Forschung und Praxis. 17(1993) H.2, S.163-175

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Content

Die Wissensklufthypothese: eine Kurzskizze - Sozialstruktur - Wissen und Wissensklüfte - Informationsfluß - Multimediale Technologie und Konzepte - Hypertext und Hypermedia - Cyberspace und Virtuelle Realität (VR) - Medienpsychologisches 'Know How' als Navigationshilfe

Source

Mediale Klassengesellschaft? Politische und soziale Folgen der Medienentwicklung. Hrsg.: M. Jäckel a.a

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Source

Informations- und Wissensverarbeitung in den Sozialwissenschaften: Beiträge zur Umsetzung neuer Informationstechnologien. Hrsg.: H. Best u.a

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Abstract

Wer digitale Bücher und Nachschlagewerke benutzt, anstatt gebundene Schmöker zu wälzen, der informiere sich schneller, umfassender und kreativer. So oder ähnlich werben Verlage und Buchhandlungen für ihre jüngsten elektronischen Publikationen. Obwohl dem Multimedia-Markt enorme Wachstumsraten prognostoziert und Hypermedia-Autoren immer gefragter werden, liegen Lust und Frust, Sinn und Unsinn zur Zeit noch eng beieinander. Wir stellen Strategien und Werkzeuge für ambitionierte Autoren vor und geben einen Einblick in den großen Markt der Applikationen

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Abstract

In this study we explored the use of logfiles as a window into the process of hypermedia navigation. Although there is a growing body of research addressing theoretical and design issues related to open-ended, non-directive technologies such as hypermedia, relatively few studies have attempted to explain navigational performance. 66 undergraduate students used a multidimensional, computer-based kiosk that could be explored in a nonlinear fashion to find information in response to one of two information retrieval tasks (simple or complex). Cluster analysis was used to generate performance profiles derived from navigational data captured in log files. Analyses of within cluster performance profiles, combined with external validation criteria, led to the classification of 4 different types of navigational performance (models users, disenchanted volunteers, feature explorers, and cyber cartographers). These characterizations were consistent with information retrieval users and the external criteria (self-efficacy, perceived utility, and interest). For example, individual who appeared to fake the time to learn the layout of the kiosk also had the highest self-efficacy, while those who used the help screen and watched the most movies had the lowest self-efficacy. Results also demonstrated an interaction between various individual navigational profiles and type information retrieval task

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Content

This article reports an applied research on the construction and implementation of a semantically structured conceptual prototype to help in the organization and representation of human knowledge in hypertextual systems, based on four references: the Facet Analysis Theory (FAT), the Conceptual Map Theory, semantic structure of hypertext links and the technical guidelines of the Associacao Brasileira de Normas Técnicas (ABNT). This prototype, called Modelo Hipertextual para Organizacao de Documentos (MHTX) - Model For Hypertext Organization of Documents HTXM - is formed by a semantic structure called Conceptual Map (CM) and Expanded Summary (ES), the latter based on the summary of a selected doctoral thesis to which access points were designed. In the future, this prototype maybe used to implement a digital libraty called BTDECI - UFMG (Biblioteca de Teses e Dissertacöes do Programa de Pós-Graduacao da Escola de Ciência da Informacao da UFMG - Library of Theses and Dissertations of the Graduate Program of School of Information Science of Universidade Federal de Minas Gerais).

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Series

Beiträge zur Medien- und Kommunikationsgesellschaft; Bd.1

Source

Kommunikationswelten: wissenschaftliche Perspektiven zur Medien- und Informationsgesellschaft. Hrag.: R. Renger u. G. Siegert

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Abstract

Hypertext, eine neue Art der Informationsdarstellung, ist innerhalb weniger Jahre zu einem auf zahlreichen Fachkonferenzen diskutierten Thema im Umfeld von Informatik, Informationswissenschaft, K?nstlicher Intelligenz, Linguistik, Psychologie und Lerntheorie geworden. Die Faszination, die von diesem Medium auf Forschung, Entwicklung und Anwendung gleicherma~en ausgeht, beruht auf der prinzipiell nichtlinearen Organisation der Hypertexteinheiten und den benutzerfreundlichen Formen des ebenfalls nichtlinearen, flexiblen Zugriffs auf die Einheiten in einem Hypertextsystem. In dieser Einf?hrung in die Hypertextmethodik werden die wesentlichen Elemente von Hypertextsystemen, die Informationseinheiten und Verkn?pfungsarten sowie die hypertextspezifischen Navigationsformen, ausf?hrlich theoretisch und anschaulich am Beispiel existierender kommerzieller und experimenteller Hypertextsysteme behandelt. Besonderer Wert wird auf den Zusammenhang von Hypertext und Information Retrieval und die Einsatzm÷glichkeiten von Hypertext in Lernumgebungen gelegt. In theoretischer Hinsicht wird untersucht, ob sich Hypertextbenutzer mit Vorteil gegen?ber anderen Medien die Information erarbeiten k÷nnen, die sie aktuell in kritischen Situationen ben÷tigen, ob und wodurch also gegen?ber traditionellen linearen Formen ein ~informationeller Mehrwert~ erzielt wird. Au~erdem wird die M÷glichkeit diskutiert, mit Hilfe von Textanalyseverfahren und Techniken der Wissensrepr"sentation Hypertexte aus Texten automatisch aufzubauen. Das Buch enth"lt eine umfassende Bibliographie und im Anhang ein Glossar und eine strukturierte Beschreibung der wichtigsten gegenw"rtig erh"ltlichen oder in Entwicklung befindlichen Hypertextsysteme.

Classification

ES 920 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Formalisierte Sprachen
ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
ST 281 Informatik / Monographien / Software und -entwicklung / Einzelne Benutzerschnittstellen (alphabet.)

RVK

ES 920 Allgemeine und vergleichende Sprach- und Literaturwissenschaft. Indogermanistik. Außereuropäische Sprachen und Literaturen / Spezialbereiche der allgemeinen Sprachwissenschaft / Datenverarbeitung und Sprachwissenschaft. Computerlinguistik / Formalisierte Sprachen
ST 271 Informatik / Monographien / Software und -entwicklung / Datenbanken, Datenbanksysteme, Data base management, Informationssysteme / Einzelne Datenbanksprachen und Datenbanksysteme
ST 281 Informatik / Monographien / Software und -entwicklung / Einzelne Benutzerschnittstellen (alphabet.)