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1.
Claudia Flowers Marty Bray Robert F. Algozzine 《Community College Journal of Research & Practice》2013,37(7):475-485
Community colleges frequently are the points of access to postsecondary training and education for members of special populations. Physical barriers are obvious problems that limit access for individuals with disabilities, and community colleges have made reasonable accommodations in this regard. One area that often is overlooked, however, is the on-line barriers that limit access to Web-based content. This study examined the Web-based content accessibility of community college home pages. A total of 253 community college home pages were evaluated for content accessibility. Only 23% of the community college home pages evaluated were determined to be accessible to individuals with disabilities. Types of accessibility problems, resources for designing accessible Web sites, and methods for validating Web sites are reported. 相似文献
2.
Claudia Flowers Marty Bray Robert F. Algozzine 《Journal of Research in Special Educational Needs》2001,1(3)
Professional organisations play a central role in efforts to make public and private facilities and resources accessible. Hundreds of organisations have formed to support the development and maintenance of services to individuals with disabilities. The World Wide Web (WWW) has become a valuable resource for individuals with disabilities, but on-line barriers create significant limitations in content accessibility. This study evaluated the content accessibility of professional organisation home pages. One hundred and eighty-seven home pages were evaluated for content accessibility. The results indicated that 72% of them had significant accessibility problems that severely affect their usability by people with disabilities. The types of accessibility problems are presented, as well as methods for validating and areas for improving Web sites. 相似文献
3.
《The Internet and Higher Education》2010,13(4):258-266
The Web has become an integral part of postsecondary education within the United States. There are specific laws that legally mandate postsecondary institutions to have Web sites that are accessible for students with disabilities (e.g., the Americans with Disabilities Act (ADA)). Web accessibility policies are a way for universities to provide a general guide to action for faculty and staff that serve as Website developers for the organization. The purpose of this study is to examine the extent and effectiveness of Web accessibility policies at land-grant universities in the United States. To that end, this paper presents a conceptual foundation for the study, ranging from an overview of Web accessibility studies, to legal mandates, to literature on organizational policies. Data collection consists of a content analysis of the Web accessibility policies of land-grant universities. Results show that while most universities have a Web accessibility policy, most policies have serious deficiencies. The deficiencies are of sufficient magnitude that many schools are likely in violation of the ADA and at risk for a law suit from a disabled person unless these policies are strengthened. 相似文献
4.
阐述了在远程教育的研究和应用中,利用基于关联规则的多层次、超图分割聚类方法,对Web网页和用户进行有效聚类。该方法借助网站层次图,可以根据实际需要,在各个层次上进行聚类分析,仅将高度相关的网页和用户聚在同一类,而将关联性较小的网页排除在聚类外。 相似文献
5.
阐述了在远程教育的研究和应用中,利用基于关联规则的多层次、超图分割聚类方法,对Web网页和用户进行有效聚类。该方法借助网站层次图,可以根据实际需要,在各个层次上进行聚类分析,仅将高度相关的网页和用户聚在同一类,而将关联性较小的网页排除在聚类外。 相似文献
6.
A lack of awareness of disability issues in the provision of digital educational material is resulting in a situation where much of this material is, to some degree, inaccessible to people with certain disabilities. Current and proposed disability legislation in countries such as the United States and the United Kingdom means that any educational material produced by institutions, and which has accessibility barriers, may soon be illegal. This paper discusses the issues involved in the provision of accessible digital material, with a heavy emphasis on Web‐based resources, with a view to raising awareness and avoiding a potentially embarrassing situation for educational institutions. The various assistive technologies used by disabled people to access digital material are discussed, along with the problems by inaccessible material, illustrated by examples of inaccessible Web pages. Solutions for ensuring the accessibility of digital material are provided, including a discussion of open standards and guidelines and principles of accessible content design 相似文献
7.
World Wide Web (WWW) home pages are now ubiquitous for universities around the world. A university home page is the first place that many stakeholders will visit for research on the university or for information on a variety of topics. It was hypothesised that the size and nature of universities and their investment in the staffing of WWW sites will determine the level of output of WWW sites. A WWW-based survey was conducted of Webmanagers at all universities in Australia. A response rate of 80% was achieved. The number of services provided, the number of pages made available and the number of pages that are changed on a regular basis were alternative measures of output. The hypothesised relationships were not supported. The study found that universities are providing a wide range of services with low levels of staffing. 相似文献
8.
《学校用计算机》2013,30(1-2):7-11
Abstract The vast educational potential of the Web continues to be largely unrealized in schools. There are many reasons for this, including cultural lag and the speed of technical advancements. Specific problems include educational Web pages that lack interaction, educational fads, frantic implementation of distance education with no regard for quality control, lack of teacher training, lack of institutional technical and pedagogical infrastructure, limited Internet access, and antiquated hardware. The article concludes with a call for research into these problems. 相似文献
9.
W eb日志的数据挖掘,可以发现用户访问页面的行为模式,改进W eb站点的性能和结构,提高查找信息的质量和效率.对W eb日志挖掘预处理的数据清洗、识别用户、识别用户会话和识别片断四个主要阶段所要完成的任务进行分析,论述了现有W eb日志预处理方法中的用户识别技术,提出了一种基于Cook ie技术和扩充日志属性的用户识别方法. 相似文献
10.
11.
Neil Witt Anne McDermott 《British journal of educational technology : journal of the Council for Educational Technology》2004,35(1):45-56
The Special Educational Needs and Disability Act has amended the Disability Discrimination Act and requires that students with a disability not be discriminated against or substantially disadvantaged by establishments of further and higher education. Academic web site developers must take steps to ensure that their sites fulfil this requirement, and guidance on compliance is provided by the World Wide Web Consortium (W3C) Web Accessibility Initiative's (WAI) Web Content Accessibility Guidelines, which offer three levels for assessing accessibility. Tools which give developers feedback on their site are available, but following their recommendations alone will not guarantee SENDA compliance. An audit of UK academic web sites has shown discrepancies between the level of compliance that sites are claiming and that which has been achieved. This would seem to demonstrate that there is a misunderstanding of the requirements necessary to create accessible web sites. This problem is exacerbated by the academic sector's widespread reliance on software accessibility tools, the use of which tends to lead developers to rely on the tools’ quantitative approach when what is required is the inclusion and development of a more qualitative view which prioritises inclusive design from the outset. 相似文献
12.
研究淘宝网和百度有啊这两个国内有代表性的C2C电子商务平台上的销售记录及其用户信息的抽取.针对两个网站上的店铺销售数据,设计一个基于JerichoHtmlParser的、以Html数据标签为地标的Web数据抽取算法;针对两个网站上的用户信息,设计一个基于正则表达式的Web数据抽取算法.设计实现了一个Web抽取系统,可以按不同的抽取规则实现对不同站点上数据的抽取.最后通过对上述2个平台上实际数据的抽取,验证了设计方案的有效性,实验证实了所设计的原型系统具有较高查全率和准确率. 相似文献
13.
There is paucity of original research that explains phenomena related to content organization and site design of educational Web sites. Educational Web sites are often used to provide Web‐based instruction, which itself is a relatively recent phenomenon for business schools, and additional research is needed in this area. Educational Web sites are designed with a different set of criteria as compared with other sites, such as those having an e‐commerce or marketing focus. More research is needed to build a theoretical foundation for feature requirements in educational Web sites. As in any new approach to teaching and learning, critical issues need to be examined before Web‐based instruction is fully integrated into teaching processes. When developing educational Web sites, features that support pedagogy should be given primary consideration. It is therefore important to identify key elements that will have maximum impact on learning. Using Q‐sort analysis (a type of Factor Analysis), this study investigated feature requirements of educational Web sites as perceived by business students. Based on the analysis of user requirements in relation to several variables that were identified from a review of literature, group characteristics emerged from students' responses. Similarities and differences between groups were investigated, and implications of these results for development of educational Web sites are presented in this study. 相似文献
14.
Lynne Cooke 《Technical Communication Quarterly》2003,12(2):155-182
In 2002, cable television news programs adopted modular presentation styles visually similar to the design of news website home pages and newspaper front pages. This design convergence of print, television, and the Web is the result of a dynamic media context in which information acceleration is a catalyst for the formation of visual trends across media. Taking an interdisciplinary approach to information design and using grounded theory methodology, this article examines the visual evolution of the news and discusses the study's relevance to technical communication. 相似文献
15.
Arthur C. Graesser Jennifer Wiley Susan R. Goldman Tenaha O’Reilly Moongee Jeon Bethany McDaniel 《Metacognition and Learning》2007,2(2-3):89-105
We investigated the impact of a Web tutor on college students’ critical stance and learning while exploring Web pages on science.
Critical stance is an aspect of self-regulated learning that emphasizes the need to evaluate the truth and relevance of information
as the learner engages in systematic inquiry to answer challenging questions. The Web tutor is called SEEK, an acronym for
Source, Evidence, Explanation, and Knowledge. The SEEK Tutor was designed to promote a critical stance through several facilities
in a computer environment: spoken hints on a mock Google™ search page, on-line ratings on the reliability of particular Web
sites, and a structured note-taking facility that prompted them to reflect on the quality of particular Web sites. We conducted
two experiments that trained students how to take a critical stance and that tracked their behavior while exploring Web pages
on plate tectonics to research the causes of the volcanic eruption of Mt. St. Helens. The SEEK Tutor did improve critical
stance, as manifested in essays on the causes of the volcanic eruption, and did yield learning gains for some categories of
information (compared with comparison conditions). However, many measures were unaffected by either the presence of the SEEK
Tutor or by prior training on critical stance. We anticipate that robust improvements on critical stance and learning will
require more training and/or some expert feedback and interactive scaffolding of critical stance in the context of specific
examples.
This work was conducted while Tenaha O’Reilly was a postdoctoral fellow at the University of Memphis. 相似文献
16.
Sign language Web pages 总被引：2，自引：0，他引：2
The WORLD WIDE WEB has changed the way people interact. It has also become an important equalizer of information access for many social sectors. However, for many people, including some sign language users, Web accessing can be difficult. For some, it not only presents another barrier to overcome but has left them without cultural equality. The present article describes a system that allows sign language-only Web pages to be created and linked through a video-based technique called sign-linking. In two studies, 14 Deaf participants examined two iterations of signlinked Web pages to gauge the usability and learnability of a signing Web page interface. The first study indicated that signing Web pages were usable by sign language users but that some interface features required improvement. The second study showed increased usability for those features; users consequently couldnavigate sign language information with ease and pleasure. 相似文献
17.
《Technical Communication Quarterly》2013,22(2):155-182
In 2002, cable television news programs adopted modular presentation styles visually similar to the design of news website home pages and newspaper front pages. This design convergence of print, television, and the Web is the result of a dynamic media context in which information acceleration is a catalyst for the formation of visual trends across media. Taking an interdisciplinary approach to information design and using grounded theory methodology, this article examines the visual evolution of the news and discusses the study's relevance to technical communication. 相似文献
18.
探讨了Windows中的异步编程技术及异步调用Web服务的技术。结合在Windows窗体中开发网页搜索应用程序的例子,对多线程技术和如何使用异步编程中的异步委托及回调技术进行了研究。通过使用多线程及异步编程技术,实现了Windows窗体中网页搜索的异步编程,使应用程序在执行搜索时能快速响应用户操作,为应用程序提供最佳的响应性能。 相似文献
19.
Alma Harris Michelle Jones Nashwa Ismail Dong Nguyen 《School Leadership & Management》2019,39(3-4):255-277
ABSTRACTThe purpose of this article is to explore the development of the knowledge base on middle leadership in schools. Since the seminal reviews conducted by Bennett a contemporary scan only of the scholarly literature on middle leaders/leadership in schools has not been undertaken. Consequently, this article looks at outputs relating to this topic by examining research papers indexed in the Web of Science and in SCOPUS between 2003 and 2017. The prime purpose of this review is to offer some reflections on the development of the empirical base on middle leadership in schools since 2003 and to highlight some of the implications for future research. The article concludes that middle leadership in schools remains an ongoing focus of research inquiry in a growing number of countries but suggests that the knowledge base would benefit from more sophisticated empirical studies and greater theoretical analysis. 相似文献
20.
William Erickson Sharon Trerise Camille Lee Sara VanLooy Samuel Knowlton Susanne Bruyère 《Community College Journal of Research & Practice》2013,37(11):864-876
Thirty community college websites were evaluated for compliance with federal web accessibility standards found in Section 508 of the Rehabilitation Act of 1973 (29 U.S.C. 794d). Two typical sites were tested for usability by individuals with visual impairments, individuals with reading-related learning disabilities (LD), and a control group of individuals without disabilities. Ten additional sites were selected for Simulated Target Group usability testing. Testing revealed that less than 1% of pages evaluated met Section 508 web accessibility standards. Over half of the users found the online admissions application process frustrating, and less than a third of all users could complete the online application without assistance. The Simulated Target Group usability testing encountered similar usability issues across the additional 10 community college websites examined. All four evaluation techniques found that community college websites fared poorly in both accessibility and usability. However, many of the issues could be addressed without significant effort. 相似文献