USABILITY ENHANCEMENT FOR 3D CAPTCHA MODEL : SUBJECTIVE EVALUATION OF DESIGN PARAMETERS ON KLM EXECUTION TIME

Q4 Computer Science

ICIC Express Letters, Part B: Applications Pub Date : 2014-08-01 DOI:10.5281/zenodo.890761

I. Ince, Ilker Yengin

引用次数: 0

Abstract

In a previous study, interactive 3D CAPTCHA was proposed as an alternative method to assist users to pass the CAPTCHA tests easily and pleasurably. In addition, usability issues were reported in the same study. This current study, introduces several design changes of interactive 3D CAPTCHA to overcome the usability issues. The new design was evaluated by testing the effects of parameters on KLM execution time within experimental studies. Test results showed that the most effective methods are using arrow keys, using underline characters, using high contrast between foreground and background of cube faces, excluding case sensitivity for input validation and removal of question marks from input boxes. The new design reduced KLM execution time from 45.9 seconds to 16.2 seconds.

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三维验证码模型的可用性增强:设计参数对KLM执行时间的主观评价

在之前的研究中，交互式3D验证码被提出作为一种替代方法，以帮助用户轻松愉快地通过验证码测试。此外，在同一项研究中还报告了可用性问题。本文介绍了交互式3D验证码的几个设计变化，以克服可用性问题。通过在实验研究中测试参数对KLM执行时间的影响来评估新设计。测试结果表明，最有效的方法是使用箭头键，使用下划线字符，使用立方体面前景和背景之间的高对比度，排除输入验证的大小写敏感性以及从输入框中删除问号。新设计将KLM的执行时间从45.9秒减少到16.2秒。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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来源期刊

ICIC Express Letters, Part B: Applications Computer Science-Computer Science (all)

CiteScore

1.00

自引率

0.00%

发文量

期刊介绍： The ICIC Express Letters, Part B: Applications (abbreviated as ICIC-ELB) is a peer-reviewed English language journal of research and surveys on Innovative Computing, Information and Control, and is published by ICIC International monthly. The primary aim of the ICIC-ELB is to publish timely quality short papers (generally no more than 8 printing pages) with emphasis on applications of established or new developed novel techniques, approaches and methodologies of computing systems, intelligent systems, information processing, and automation and control systems.