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CHI
2001
ACM
14 years 10 months ago
Reading of electronic documents: the usability of linear, fisheye, and overview+detail interfaces
Reading of electronic documents is becoming increasingly important as more information is disseminated electronically. We present an experiment that compares the usability of a li...
Erik Frøkjær, Kasper Hornbæk
CHI
2010
ACM
14 years 4 months ago
Average task times in usability tests: what to report?
The distribution of task time data in usability studies is positively skewed. Practitioners who are aware of this positive skew tend to report the sample median. Monte Carlo simul...
Jeff Sauro, James R. Lewis
CHI
2011
ACM
13 years 1 months ago
More than skin deep: measuring effects of the underlying model on access-control system usability
In access-control systems, policy rules conflict when they prescribe different decisions (ALLOW or DENY) for the same access. We present the results of a user study that demonstr...
Robert W. Reeder, Lujo Bauer, Lorrie Faith Cranor,...
CHI
2008
ACM
14 years 17 hour ago
Introducing item response theory for measuring usability inspection processes
Usability evaluation methods have a long history of research. Latest contributions significantly raised the validity of method evaluation studies. But there is still a measurement...
Martin Schmettow, Wolfgang Vietze
CHI
2008
ACM
14 years 10 months ago
Undercover: authentication usable in front of prying eyes
A number of recent scams and security attacks (phishing, spyware, fake terminals, ...) hinge on a crook's ability to observe user behavior. In this paper, we describe the des...
Hirokazu Sasamoto, Nicolas Christin, Eiji Hayashi