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Designing Mobile Friendly CAPTCHAs: An Exploratory Study.

Jiang, N., Dogan, H. and Tian, F., 2017. Designing Mobile Friendly CAPTCHAs: An Exploratory Study. In: 31st British Human Computer Interaction Conference, 3 - 6 July 2017, Sunderland, UK.

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CAPTCHAs (Completely Automated Public Turing Test to Tell Computers and Humans Apart) are one of the most widely used authentication mechanisms that help to prevent online service abuse. With the advent of mobile computing, mobile devices such as smartphones and tablets have become the primary way people access the Internet. As a result, increasing attention has been paid to designing CAPTCHAs that are mobile friendly. Although such CAPTCHAs generally show their advantages over traditional ones, it is still unclear what the best practices are for designing a CAPTCHA scheme that is easy to use on mobile devices. In this paper, we present an exploratory study that focuses on developing a more holistic view of usability issues with interactive CAPTCHAs to inform design guidance. This is done through investigating the usability performance of seven mobile friendly CAPTCHA schemes representing five different CAPTCHA types.

Item Type:Conference or Workshop Item (Paper)
Uncontrolled Keywords:CAPTCHAs; smart phones; mobile devices; usability; design guidelines
Group:Faculty of Science & Technology
ID Code:29320
Deposited By: Symplectic RT2
Deposited On:14 Jun 2017 14:10
Last Modified:14 Mar 2022 14:05


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