Paper Info
Title
Heuristics for the evaluation of captchas on smartphones
Abstract
Captchas are used as a security mechanism on the web to distinguish human users from automated programs. However, existing captchas are not well-adapted to mobile devices and may lead users to abandon tasks. Although Web developers have many available captchas, they lack the tools to evaluate if these captchas are suitable for their mobile site. In this paper, we present domain specific usability heuristics for evaluating captchas on smartphones. To assess effectiveness, we compared our proposed heuristics against Nielsen's during evaluations of four captcha schemes on smartphones. The custom heuristics revealed more major problems and more detailed feedback on the problems than Nielsen's.
Year
DOI
Venue
2015
10.1145/2783446.2783583
BCS HCI
Keywords
Field
DocType
Captchas,Evaluation,HCl,Heuristic evaluation,HIPs,Smartphones
Usability heuristics,Computer science,Heuristic evaluation,Heuristics,Mobile device,CAPTCHA,Multimedia
Conference
Citations 
PageRank 
References 
3
0.40
31
Authors
3
Name
Order
Citations
PageRank
Gerardo Reynaga1100.87
Sonia Chiasson291958.49
P. C. van Oorschot34230414.39