Search (195 results, page 3 of 10)

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a

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Abstract

Presents a 3 facet adaptive authoring model for online hypermedia information systems. It provides spatial reconfiguration of the presentation objects based on activation frequency, information content customization based on author specified criteria, and hypergraphic network optimization based on usage. Discusses the theory underlying the model, its architecture and hypermedia structure, and provides a preliminary quantitative measure and evaluation of its impact on authoring time, as well as study time

Type

a

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Abstract

Reviews TFPL's The Multimedia Yearbook and CD-ROM Directory on CD-ROM, a combination of 2 printed directories, the Multimedia Yearbook and the CD-ROM Directory. Information is provided on companies involved in the multimedia and CD-ROM business and on commercial CD-ROM titles available worldwide with supporting details such as publishers' addresses. The easy to use combination of title and industry data makes this disc likely to become the standard reference source on CD-ROMm especially in the UK

Type

a

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Abstract

Discusses an architecture for knowledge-based hypermedia systems based on work from semantic databases. Its power derives from its use of a single, uniform data structure which can be used to store both the intensional and extensional information needed to generate hypermedia systems. The architecture is also sufficiently powerful to accomodate the representation of reasonable amount of knowledge within a hypermedia system. Work has been conducted in building a number of prototypes on a small information base of digital image data. The prototypes serve as demonstrators of systems for managing the large amount of information held by museums of their artifacts. The aim of this work is to demonstrate the flexibility of the architecture in sereving the needs of a number of distinct user groups. The first prototype has demonstrated that the virtual architecture is capable of supporting some of the main hypermedia access methods. The current demonstrator is being used to investigate the potential of the approach for handling multiple classifications of hypermedia material. The research is particularly directed at the incorporation of evolving temporal and spatial knowledge

Type

a

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Abstract

Reports the basis for a cognitive walkthrough method to support the evaluation of multimedia presentations, e.g. 'how to do it' demonstrations. The walkthrough is founded upon an analysis of the cognitive processes and representations formed by the comprehension of the presentation. Issues include evaluation of attention, topic focus and information types. The walkthrough provides a series of guidelines for evaluation based on these cognitive models, such as the use of media, scripting and presentation techniques. The value of the guidelines is validated by several empirical studies. Reports an eye tracking study providing evidence as to how visual attention responds to multimedia materials. A series of comprehension studies then investigates the effectiveness of a presentation before and after the guidelines were applied. Illustrates with an example evaluation and studies of a commercially produced multimedia CD-ROM presentation on the etiology of cancer

Type

a

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Abstract

There are parallels between the early stages of development of interactive multimedia programs and the 'Primitive Mode of Representation' in early film. Findings from fieldwork analyzing children's use of 4 interactive multimedia programs are compared with a description of some features of early film and are used as the basis of a consideration of some of the problems faced by an audience encountering a nascent medium. Some of the methods which were adopted to facilitate the audience's understanding of films - the use of intertitles and a narrator - are considered, and discusses thesuitability for adaptation to interface design for multimedia programs

Type

a

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Abstract

Final report of a British Library supported conducted at University College, London, computer science department, the aim of which was to build a demonstration and test bed facility for online access to a large electronic library of multimedia documents. The project was a pilot experiment in the use of a database of compound documents (text and images) in the Open Document Architecture format. The database used is part of the contents of information in the Journal of the American Chemical Society. Discusses the overall view of the project with particular reference to the WAIS information retrieval server which was developed and used

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Abstract

Discusses models for storing and presenting multimedia documents integrating large amounts of data of different types. Multimedia systems integrate a variety of data such as voice, graphics, text, video and other types of images into a single document. Most of these data are not structured and therefore require a huge storage capacity. Such a requirement causes many problems for traditional database management systems which were not originally designed to manipulate data other than text. Presents 2 data storage models and several other associated models for the presentation of multimedia documents. The analysis of these models reveals their capacity to synchronize various temporal scenarios while allowing users simultaneous and secure access to multimedia systems

Type

a

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Abstract

Multimedia art catalogues present a number of recurring characteristics in both the type of data and the users involved, and in the type of operations required. Typical data include textual catalogue cards manageable through an information retrieval system (IRS), as well as textual captions, images, video and speech, strutured as a hypermedia network. Proposes a model for the design of these applications and discusses its effectiveness in improving the quality of the application. The model exploits a multi-level design approach to organize data and access structures of the IRS while the entity-relationship (E-R) approach, tailored to model hypermedia applications, is adopted to describe the structure of the documents and their links

Type

a

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Abstract

The emerging information superhighway will bring to homes and business the ability to access and manipulate a vast amount of information stored in a variety of forms in different databases. Multimedia systems facilitate the access and manipulation of such information across high-speed networks. Multimedia database systems (MDSs) are a new generation of database systems that will provide a unified and interactive framework for users to request and integrate information stored in a variety of media. Applications of such systems in scientific research, commercial and business activities (via interactive TV systems), law enforcement, and military operations are numerous an obvious. This book presents basic research on the theory, implementations, and applications of MDSs

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Abstract

Reviews the information systems methodologies that can be used to assist in the structuring of systems projects to create multimedia databases. Examines some of the options with a view to their supporting the design of user interfaces for public access systems. An initial exploration of the systems life cycle is followed by the key stages in any methodology. Describes a range of user centred methodologies, cooperative and participative methodologies and task oriented approaches to design. Introduces an object oriented methodology to the design of a multimedia graphic user interface

Type

a

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Abstract

Tests were carried out on 120 grade 6 students to compare Compton's Multimedia Encyclopedia on CD-ROM and its printe equivalent in terms of students' ability to recall information and to draw inferences from it. Between-subject varaibles were 3 presentation conditions (printed text with illustrations, text-on-screen, and multimedia-text, still images, and animation) and a retrieval condition (topic retrieved before viewing / topic presented without retrieval). Within-subject variables were text complexity (complex or simple), text type (descriptive or procedural), and measure (propositions recalled versus propositions inferred). Presentation conditions produced no significant main effect although text-on-screen resulted in somewhat higher recall and multimedia resulted in somewhat higher inference scores. Multimedia had the greatest effect in the case of simple topics, and especially the simple procedural topic

Editor

Renaud, A.

Type

a

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Abstract

Providing access to the ever-expanding world of information to a greater number and variety of individuals reminds one of the zeal that fostered the first publicly funded education system. It is clear that the survival of contemporary culture and technology rests heavily on an 'encyclopedia' of shared values and ideas. Awareness of and participation in this dynamic receptable of shared experience could eliminate certain socioeconomic distinction but may result in other forms of social stratification. While researchers labour over 'information visualization' as a means of filtering extremely complex quantitative relationships among data into relatively simple, manipulable graphical entities, a new form of literacy may emerge. With voice and pattern recognition, the multifunctional screen with its audio and visual motion may become a prosthesis allowing a growing population of the non-reading and video-oriented to initiate sophisticated information quests and become interested in textual interactivity

Type

a

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Abstract

Examines SC24 of ISO/IEC JTC1 a standard for interfaces in windowed and non-windowed environments for computer graphics, image processing, interaction with and visual presentations of information including for the creation of multimedia and hypermedia documents. Describes the structures of SC24, post and future standards of SC24 and outlines future plans

Type

a

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Abstract

Windows' quick penetration into the consumer market, since Christmas 1993, has been accompanied by an industry-wide fear of a backslash by consumers because the platform can be extremely hard to configure and keep running properly

Type

a

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Abstract

How to design and develop, maintain and use a hypermedia interface is the topic of this book. Based on a ESPRIT workshop, it discusses actual methodological issues comprising theoretical design aspects as well as detailed practical design proposals

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Type

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Abstract

Describes examples of interactive multimedia and some of the problems faced in cataloguing, particularly in the choice of a general material designation to summarize the essential nature of the work. Discusses the guidelines for bibliographic description of interactive multimedia

Type

a