文献类型：期刊文献

中文题名：WAPM:基于改进层次分析法的网站无障碍评估指标

英文题名：WAPM: A Web Accessibility Evaluation Metric Based on Improved AHP

作者：李飞[1];李晗静[1,2];姚登峰[2];吕会华[2]

机构：[1]北京联合大学北京市信息服务工程重点实验室;[2]北京联合大学特殊教育学院

第一机构：北京联合大学北京市信息服务工程重点实验室

年份：2018

卷号：0

期号：1

起止页码：78-83

中文期刊名：计算机与现代化

外文期刊名：Computer and Modernization

收录：CSTPCD

基金：国家语委重点项目(ZDI135-31);北京教育科学规划重点课题(ADA14121);北京市属高校高水平教师队伍建设创新团队建设提升计划项目(IDHT20170511)

语种：中文

中文关键词：4项原则;无障碍指标;无障碍标准;层次分析法

外文关键词：four principles; accessibility indicators; accessibility criteria; analytic hierarchy process

摘要：在网站无障碍评估中,无障碍度量量化综合值反映了网站的无障碍水平。现有研究表明,为不同检测点找到适当的权重存在严重的挑战。目前,一些指标根据WCAG2.0的优先级设置检测点权重,但调查显示,WCAG2.0优先级与关于网站无障碍的可感知性、可操作性、理解性、鲁棒性4项原则相关程度并不显著。此外,网站无障碍评估结果还确认了使用现有指标的网站与4项原则不匹配。为了克服这个限制,本文提出一种称为网站无障碍原则的权重(Web Accessibility Principle Metric,WAPM),从而更好地将辅助功能评估结果与4项原则的相关程度相匹配,即使用层次分析法对4项原则进行分析,由于检测点与4项原则之间的关联映射存在不完全对应的情况,本文改进层次分析法从而从4项原则中导出最优的检测点权重。实际的网站无障碍评估数据实验验证了WAPM的有效性。
In the Web accessibility evaluation,the comprehensive value of the accessibility measurement reflects the accessibility of the Web. Existing research has shown that finding the right weight for different checkpoints is a challenging problem. Although some indicators derive checkpoint weights from WCAG 2. 0 priorities,previous surveys have shown that WCAG 2. 0 priorities are not significant related to the accessibility of the site＇s accessibility,operability,comprehensibility,and robustness. In addition,the results of our website＇s accessibility assessment also confirm that sites of using existing metrics do not match the four principles. In order to overcome this limitation,we propose a Web accessibility principle metric,which is called the Web Accessibility Principle Metric（ WAPM）,so as to better match the evaluation results of the auxiliary function with the four principles,that is,using the analytic hierarchy process to analyze the four principles,because the association mapping between the detection point and the four principles is not exactly the case,we improve the analytic hierarchy process to derive the optimal detection point weights from the four principles. The actual website accessibility assessment data experiment verifies the effectiveness of WAPM.