个性化超媒体课件研究

探讨应用能反映领域知识本质结构的语义网,应用课程排序方法、有向无环图的拓扑排序方法动态生成课件等关键技术,为开发者提供一个动态生成个性化超媒体课件的框架和过程.     

A Hypermedia Tutoring System for Design Trainers

Research and development has been undertaken on the production of hypertext-based authoring and end-user training systems, linked to a videodisc player. A hypermedia system enabled the use of animation, purpose-designed graphics, sound and fast response to enhance the learning environment. The package structure could be presented, to allow the user to move around the package, and to see at a glance the consequence of his actions. In addition, material visited by the user and decisions taken, could be stored to enable computer managed manipulation of the data structure for individual requirements.

This paper discusses one particular system for design trainers to explore various structures of training material. This videodisc-based package gives guidance on the use of multi-media authoring packages to produce material that is sensitive to the interests of each trainee at an appropriate level of understanding. The control structure required some innovative programming techniques of benefit to other researchers investigating the potential of hypermedia.     

关于分布式超媒体系统的初探

分布式超媒体系统是分布式技术与超媒体技术发展结合的产物。此文着重讨论了分布式超媒体系统的基本功能及结构,介绍了国外的一些研究成果,最后介绍了作者的研究工作。     

A Usability Checklist for the Usability Evaluation of Mobile Phone User Interface

In the last decade, the research of the usability of mobile phones has been a newly evolving area with few established methodologies and realistic practices that ensure capturing usability in evaluation. Thus, there exists growing demand to explore appropriate evaluation methodologies that evaluate the usability of mobile phones quickly as well as comprehensively. This study aims to develop a task-based usability checklist based on heuristic evaluations in views of mobile phone user interface (UI) practitioners. A hierarchical structure of UI design elements and usability principles related to mobile phones were developed and then utilized to develop the checklist. To demonstrate the practical effectiveness of the proposed checklist, comparative experiments were conducted on the usability checklist and usability testing. The majority of usability problems found by usability testing and additional problems were discovered by the proposed checklist. It is expected that the usability checklist proposed in this study could be used quickly and efficiently by usability practitioners to evaluate the mobile phone UI in the middle of the mobile phone development process.     

A Context-of-Use Taxonomy for Usability Studies

The interest in developing usable products has led to the inclusion of usability aspects in product development processes. Nonetheless, the fact that there is a tendency to overlook characteristics of the context in which a product is to be used means that the usability of a product in its operational environment is often diminished. One of the main reasons why this is the case is because there is no clear and sufficiently detailed model available for defining the concept of context of use. A comprehensive taxonomy that describes context of use and its attributes by means of precise definitions is proposed. This taxonomy will serve as a basis for improving the validity of usability activities by enabling an analysis of the conditions of use of a product in usability studies in a structured way.     

Hypermedia Support for Software Development: A Retrospective Assessment

Hypermedia technologies have been available for about a decade. Beginning with Douglas Engelbart, researchers have become interested in applying hypermedia concepts and technologies to software development. This paper assesses this symbiosis between hypermedia and software development as described by research contributions; by our count, more than one hundred articles. To date, no collection of, or guide to, this literature has been published. A number of significant contributions are classified, described, and appraised — providing a guide into what has been a rich but perhaps under-reported research area. Hypermedia has made significant contributions to software development in three primary areas: coping with massive amounts of information associated with software development projects; establishing and maintaining linkages between various types of software engineering documents; and enabling development engineers to record, document, and preserve knowledge about development thoughts, processes and rationale. These contributions may help direct the focus of future research towards building on, combining and assessing the resulting contributions. A research agenda is proposed along these lines.     

一种基于可用度的Web服务可用性测量模型

Web服务通常运行于一个动态和开放的网络环境中,其底层平台与面向的用户千差万别,这使得Web服务的可用性经常不能得以保证。如何对Web服务可用性进行合理评估并提高服务质量是一个具有挑战性的研究课题。从服务请求者的角度出发,设计一种基于可用度的Web服务可用性测试模型,通过采集原始指标数据对服务质量进行可用度量化评估,为服务请求者选择更佳的Web服务提供参考依据。     

一个动态超媒体映射引擎

文章首先介绍了传统应用软件和超媒体应用软件的差异,指出了超媒体应用系统的特征和对最终用户的吸引力.在此基础上,建立了一个动态超媒体映射引擎的模型,它可以透明地为大多数传统应用系统增加超媒体的界面.文章最后给出了在WWW上实现的一个DHyME(dynamic hypermedia mapping engine)实例.     

基于超媒体智能CAI系统的研究

文章根据领域知识的层次关系的特点,将人工智能引入到超媒体系统中,探讨了ICAI中知识表示、推理规则、推理机制等技术,建立了ICAI系统模型,该系统具有动态地组织教学内容、调整教学方法、评价学生认知特点的功能,以满足不同程度学生的需求。     

Automating Hypermedia for Decision Support

Many ‘first generation’ hypermedia systems were designed to support applications, which do not require the dynamic and general characteristics necessary for our domain --- decision support systems (DSS). The heart of our research is a dynamic model of hypermedia incorporating virtual structures and computation, which we call generalized hypermedia. Generalized hypermedia broadens and automates the ‘static’ or non-virtual notion of first generation hypermedia for a knowledge-based DSS shell. The shell provides a hypermedia-style interface for navigating among DSS application models, data and reports. Such a shell should support applications in a variety of fields, e.g., engineering, manufacturing, finance, and therefore must provide hypermedia support as general, system-level functionality Generalized hypermedia superimposes a hypermedia network on a DSS application, generating all hypermedia nodes, links and link markers dynamically from the application's standard, non-hypermedia knowledge base. In this paper we demonstrate how automating hypermedia can enhance decision making with a DSS. We describe generalized hypermedia and discuss the challenges presented to it by a dynamic, real-time environment.     

A Cooperative Architecture for Hypermedia Editing – CoMEdiA

CoMEdiA is a cooperative hypermedia editing prototype, which enables co-authors to cooperatively produce hypermedia documents. It allows co-authors to communicate their ideas, drafts, guidelines, constraints, and annotations with other co-authors in order to exchange information (remotely or face-to-face), improvepassages and modify notes until a final document is achieved. We did not concentrate on the depth but on the breadth of the features. Our efforts were on integrating and coordinating concepts from collaboration, multimedia, and hyper organization rather than on making a specialized system in any of them. Our first step was to investigate issues in group editing and cooperation. Then we started by having text in our documents, later static images, and 2D-Graphics. This procedure was adopted because we felt these were the most simple media to integrate and process.     

Towards A New Authoring Methodology for Large-Scale Hypermedia Applications

As the amount of information technology increases, managing information resources, so that the correct people can find the information easily, becomes a critical issue. Hypermedia systems are considered one solution to this problem as they provide a means for representing higher level relationships between the underlying information. However, the amount of information available electronically is increasing at an accelerated rate. Using standard hypermedia authoring techniques, the effort required managing and maintaining large-scale hypermedia systems is enormous. Hypermedia authoring in the large requires new methodologies if it is going to be feasible.This paper presents a new model for building and structuring large-scale hypermedia applications. It describes a case study that explored the delivery of hypermedia information in an industrial environment on a small scale. Models and techniques developed for that case study were then refined and augmented so they could support the construction of large-scale hypermedia systems. In order to support such endeavors a new linking model is presented that allows the author to explicitly represent abstract concepts contained within the underlying information and interconnect them in some meaningful manner. A prototype system applying this linking technique is presented.     

CRITON: A Hypermedia Design Tool

The WWW has turned into a development and run-time environment for large-scale and complex applications. Such sophisticated applications are being deployed in increasing numbers without having been developed according to appropriate methodologies, tools and quality standards. The reason is not only that the hypermedia industry resists to utilize formal methods, but also that these methods and corresponding tools are very few and of dubious standards. The consequence is that the hypermedia applications being developed are of poor functionality and lack qualities such as modifiability, usability and maintainability. Especially the design phase is one of the phases that lack sufficient support from methods and CASE tools. This paper presents CRITON, a cross platform tool, built to support a hypermedia design method within an integrated environment. CRITON manages all three aspects of hypermedia design: conceptual design, navigational design and graphical user interface design, utilizing well-established theories and practices from software as well as hypermedia engineering. It employs these designs to generate a preliminary, exemplary form of the hypermedia application for the purpose of assessing the designs before the implementation phase.     

Adaptive Hypermedia

Adaptive hypermedia is a relatively new direction of research on the crossroads of hypermedia and user modeling. Adaptive hypermedia systems build a model of the goals, preferences and knowledge of each individual user, and use this model throughout the interaction with the user, in order to adapt to the needs of that user. The goal of this paper is to present the state of the art in adaptive hypermedia at the eve of the year 2000, and to highlight some prospects for the future. This paper attempts to serve both the newcomers and the experts in the area of adaptive hypermedia by building on an earlier comprehensive review (Brusilovsky, 1996; Brusilovsky, 1998).     

基于HyTime的超媒体文档系统研究

超媒体文档系统不仅要求支持离散媒体（例如文本和静止图象）和连续媒体（例如声音和视频）等信息。而且要描述不同媒体之间的同步关系。为实现这样的超媒体文档系统,采用ＳＧＭＬ和ＨｙＴｉｍｅ文档标准来描述各种单一媒体之间的时空关系,主要讨论基于ＳＧＭＬ和ＨｙＴｉｍｅ标准的超本文档系统的实现问题。     

基于WEB的超媒体教学课件系统研究

给出了基于WEB的新型教学课件,即超媒体教学课件系统的总体架构和组成部分,分析了超媒体教学课件系统的特点、应用优势及需要面对和解决的问题。     

Hypermedia Models

This survey deals with questions of the organization and structuring of information. Hypermedia models of three basic categories are considered: (1) models of data structures, in which information is laid; (2) models of processes, which describe the semantics of the linking and browsing; and (3) combinational models that include structural and behavioral aspects of hypermedia.     

SKY：一个面向方案设计的超媒体智能开发环境

为了有效地支持方案设计，一个智能开发工具应具有哪些特征呢？作者认为将设计过程支持与设计信息管理集成在同一环境下可创造一个人机一体化的方案设计环境，本文介绍了一个作者开放的用于支持方案设计的智能设计开发环境ＳＫＹ《ＳＫＹ同时具有智能开发工具和超媒体系统的特点。文中给出了ＳＫＹ的总体结构，并且对ＳＫＹ的关键技术；面向对象知识表示，支持设计过程、问题求解策略和超媒体设计信息管理作出详细的讨论。最后介绍了