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叙述了一种分布式超媒体数据库系统(HDB)的系统结构、节点和链模型以及系统的组成。HDB具有分布式宏文献结构,采用超媒体形式的节点和链来管理多媒体信息,可以实现过滤浏览、基于内容检索、多级导航等功能。HDB由超媒体数据库创建、表现与查询、宏文献服务器、媒体服务器、脚本语言等模块组成。 相似文献
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本文讨论了超媒体的概念及其应用于多媒体信息管理的优点,介绍了远程超媒体资源济览器的应用背景,重点介绍了东北大学软件中心在开发的一套远程超媒体资源和济览器的设计、主其实现方法。 相似文献
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客户/服务器计算模型是当今主流的计算技术,超媒体技术是管理多媒体信息的有效手段。我们将超媒体技术和客户/服务器模型相结合,建立了“基于客户/服务器环境的多媒体创作平台HCS”。本文介绍了HCS系统的设计思想和总体结构,并给出了多媒体创作平台和客户/服务器环境的设计与实现。 相似文献
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Word文档的内容与数据库互联及其应用 总被引:1,自引:0,他引:1
本文就MIS系统开发中,以Word画图和写说明文字的多媒体信息与数据库互连的方法进行分析,利用OLE技术,以粘贴板为桥梁,实现了将Word中的多媒体信息一次性分项存取.此方法用于开发试题库系统,能很方便地将试题录入到数据库中并导出试卷. 相似文献
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本文提出了站点热度函数概念与相关的查询设计要点。设计一种基于Intetnet环境下的提高站点热度的数据库查询模型,并给出了该模型方案下将模糊查询与超媒体存取相结合的实现方法。 相似文献
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一种基于超媒体技术的中学化学CAI软件的设计 总被引:2,自引:0,他引:2
通过系统设计思想、体系结构、超文本和超媒体的应用的描述 ,介绍了基于超媒体技术的中学化学CAI软件系统的设计过程 ,重点论述了该系统的设计思想、体系结构和关键技术的运用。 相似文献
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提出了超媒体与决策支持系统(DSS)集成化的方法,给出了超媒体协同器功能结构设计方案,并就超媒体协同器关键技术的实现进行了研究。 相似文献
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This research investigates the use of patterns in designing adaptable, flexible hypermedia applications. While patterns are particularly applicable to software design, they can also be used to assist designers of other types of applications. We have developed a method (APHID) that guides a hypermedia creator through the analysis and design process. The method ensures that good design principles are followed, both for the hypermedia application and for the interface that presents the hypermedia application. Our method uses a concept map, constraints, and patterns (instructional and presentation) to support partial automation for creating hypermedia applications. We also present a prototype software system that uses the APHID method to create instructional hypermedia applications semi-automatically. The applications created using APHID are tailored to specific types of learners. We conclude with a claim that this approach is applicable not just to instructional hypermedia, but to the larger problem of generating adaptable interfaces. 相似文献
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超媒体文档系统的用户界面设计及热标处理 总被引:2,自引:0,他引:2
用户界面设计及热处理是超媒体文档系统中的一个极为重要的内容,设计的内容将直接影响软件的质量,文章介绍了超媒体当系统中有用户界面的设计问题,热标的概念及热标处理中的一些问题。 相似文献
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SKY:一个面向方案设计的超媒体智能开发环境 总被引:2,自引:0,他引:2
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 相似文献
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本文首先分析当前超媒体教学系统的不足,并在此基础上给出超媒体计算机辅助教学系统HICAI的设计思想、体系结构及各组成模块的功能。 相似文献
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Sarah Morley Helen Petrie Anne-Marie O'Neill Peter McNally 《Behaviour & Information Technology》1999,18(1):18-26
This paper presents the design and evaluation of a hypermedia system for blind users, making use of a nonvisual interface, non-speech sounds, three input devices, and a 37 node hypermedia module. The important components of an effective auditory interface are discussed, together with the design of the auditory interface to hypermedia material. The evaluation, which was conducted over several weeks and used a range of complementary objective and subjective measures to assess users' performance and preferences, is described. The findings from the evaluation with nine visually impaired student participants are presented. The results from this research can be applied to the design and evaluation of other non-visual hypermedia systems, such as auditory World Wide Web (WWW) browsers and digital talking books. 相似文献
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Freddy Mampadi Sherry Y. Chen Gheorghita Ghinea Ming-Puu Chen 《Computers & Education》2011,56(4):1003-1011
In the past decade, a number of adaptive hypermedia learning systems have been developed. However, most of these systems tailor presentation content and navigational support solely according to students’ prior knowledge. On the other hand, previous research suggested that cognitive styles significantly affect student learning because they refer to how learners process and organize information. To this end, the study presented in this paper developed an adaptive hypermedia learning system tailored to students’ cognitive styles, with an emphasis on Pask’s Holist–Serialist dimension. How students react to this adaptive hypermedia learning system, including both learning performance and perceptions, was examined in this study. Forty-four undergraduate and postgraduate students participated in the study. The findings indicated that, in general, adapting to cognitive styles improves student learning. The results also showed that the adaptive hypermedia learning system have more effects on students’ perceptions than performance. The implications of these results for the design of adaptive hypermedia learning systems are discussed. 相似文献
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《Journal of Network and Computer Applications》2001,24(1):19-38
Extensibility has long been recognized as a highly desirable trait of hypermedia systems. Furthermore, many hypermedia systems claim to provide some form of extensibility. However, consensus on what functionality of a hypermedia should be extensible, how this extensibility should be presented to extension implementers, and even a rigorous definition of the term itself have evaded the hypermedia field. In this paper, we start by offering one possible definition of extensibility. Then, we describe the extensibility mechanisms provided in the HOSS hypermedia system, and analyse these mechanisms in light of our proposed definition. We point out some of the aspects of the design and implementation of the HOSS extensibility mechanism that caused problems for extension developers. We then consider the extensibility mechanisms of Construct, the codebase successor to HOSS and a number of other hypermedia systems, focusing on how the analysis of the HOSS mechanisms affected analogous mechanisms in Construct. We conclude with a reflection upon our proposed definition of extensibility in hypermedia systems. 相似文献