474 research outputs found
METHODOLOGIES FOR DESIGNING AND DEVELOPING HYPERMEDIA APPLICATIONS
Hypermedia design, as any other design activity, may be observed according to two points of view: methods which
suggest milestones to guide the designer's work and process which concerns the actual detailed behavior of the
designer at work. Cognitive studies assess that mental processes involved in any design process show widely shared
human characteristics regardless to the used design method. Thereby, they provide general keys to help designers.
Thus, a hypertext design environment should equally consider the two dimensions of a hypertext design activity, in
particular it should support the natural design process specificities, mainly the incremental and opportunist aspects.
The paper focuses on the hypertext design as a computer supported human activity. It examines what is general both
in the design methods and in the design process of hypertexts in order to determine which general features are
helpful to designers. This analysis has raised from the observation of the behavior of MacWeb users during design
tasks. It is related to sound and well known results in cognitive science. The paper also describes how the proposed
features are implemented in the MacWeb system.Information Systems Working Papers Serie
A VISUAL DESIGN METHOD AND ITS APPLICATION TO HIGH RELIABILITY HYPERMEDIA SYSTEMS
This work addresses the problem of the production of hypermedia
documentation for applications that require high reliability, particularly
technical documentation in safety critical industries. One requirement of this
application area is for the availability of a task-based organisation, which
can guide and monitor such activities as maintenance and repair. In safety
critical applications there must be some guarantee that such sequences are
correctly presented. Conventional structuring and design methods for
hypermedia systems do not allow such guarantees to be made. A formal
design method that is based on a process algebra is proposed as a solution
to this problem. Design methods of this kind need to be accessible to
information designers. This is achieved by use of a technique already
familiar to them: the storyboard. By development of a storyboard notation
that is syntactically equivalent to a process algebra a bridge is made
between information design and computer science, allowing formal analysis
and refinement of the specification drafted by information designers.
Process algebras produce imperative structures that do not map easily into
the declarative formats used for some hypermedia systems, but can be
translated into concurrent programs. This translation process, into a
language developed by the author, called ClassiC, is illustrated and the
properties that make ClassiC a suitable implementation target discussed.
Other possible implementation targets are evaluated, and a comparative
illustration given of translation into another likely target, Java
METHODOLOGIES FOR DESIGNING AND DEVELOPING HYPERMEDIA APPLICATIONS
Hypermedia design, as any other design activity, may be observed according to two points of view: methods which
suggest milestones to guide the designer's work and process which concerns the actual detailed behavior of the
designer at work. Cognitive studies assess that mental processes involved in any design process show widely shared
human characteristics regardless to the used design method. Thereby, they provide general keys to help designers.
Thus, a hypertext design environment should equally consider the two dimensions of a hypertext design activity, in
particular it should support the natural design process specificities, mainly the incremental and opportunist aspects.
The paper focuses on the hypertext design as a computer supported human activity. It examines what is general both
in the design methods and in the design process of hypertexts in order to determine which general features are
helpful to designers. This analysis has raised from the observation of the behavior of MacWeb users during design
tasks. It is related to sound and well known results in cognitive science. The paper also describes how the proposed
features are implemented in the MacWeb system.Information Systems Working Papers Serie
Hytexpros : a hypermedia information retrieval system
The Hypermedia information retrieval system makes use of the specific capabilities of hypermedia systems with information retrieval operations and provides new kind of information management tools. It combines both hypermedia and information retrieval to offer end-users the possibility of navigating, browsing and searching a large collection of documents to satisfy an information need. TEXPROS is an intelligent document processing and retrieval system that supports storing, extracting, classifying, categorizing, retrieval and browsing enterprise information. TEXPROS is a perfect application to apply hypermedia information retrieval techniques. In this dissertation, we extend TEXPROS to a hypermedia information retrieval system called HyTEXPROS with hypertext functionalities, such as node, typed and weighted links, anchors, guided-tours, network overview, bookmarks, annotations and comments, and external linkbase. It describes the whole information base including the metadata and the original documents as network nodes connected by links. Through hypertext functionalities, a user can construct dynamically an information path by browsing through pieces of the information base. By adding hypertext functionalities to TEXPROS, HyTEXPROS is created. It changes its working domain from a personal document process domain to a personal library domain accompanied with citation techniques to process original documents. A four-level conceptual architecture is presented as the system architecture of HyTEXPROS. Such architecture is also referred to as the reference model of HyTEXPROS. Detailed description of HyTEXPROS, using the First Order Logic Calculus, is also proposed. An early version of a prototype is briefly described
Integrating serious games in adaptive hypermedia applications for personalised learning experiences
Game-based approaches to learning are increasingly recognized for their potential to stimulate intrinsic motivation amongst learners. While a range of examples of effective serious games exist, creating high-fidelity content with which to populate games is resource-intensive task. To reduce this resource requirement, research is increasingly exploring means to reuse and repurpose existing games. Education has proven a popular application area for Adaptive Hypermedia (AH), as adaptation can offer enriched learning experiences. Whilst content has mainly been in the form of rich text, various efforts have been made to integrate serious games into AH. However, there is little in the way of effective integrated authoring and user modeling support. This paper explores avenues for effectively integrating serious games into AH. In particular, we consider authoring and user modeling aspects in addition to integration into run-time adaptation engines, thereby enabling authors to create AH that includes an adaptive game, thus going beyond mere selection of a suitable game and towards an approach with the capability to adapt and respond to the needs of learners and educators
A Generic Software Library for Creating Multimedia Browse/Search Applications
PhDThis thesis surveys the field of browse/search interactions. The results of this study form
the basis of a specification of a representation scheme and a library of access functions
which facilitate the creation of information-rich multimedia applications.
Evidence is provided for the hypothesis that browsing and searching are the extreme ends
of a continuum of data access methods and that many browse/search interactions contain a
mixture of both with the ratio varying as the interaction proceeds. These observations
motivate the integration of browsing and search facilities so that applications can be built
which exhibit both types of information access.
This work is tailored to the area of consumer multimedia with a review of the constraints
that this imposes on the authoring process and the applications themselves forming part of
this work.
The specification of the functionality of the function library, together with its
implementation and testing are described in detail. The library has been evaluated by
constructing a number of prototype applications which demonstrate the utility and scope of
the library
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