User experiences with sharing and access control
CHI '06 Extended Abstracts on Human Factors in Computing Systems
Advanced Maintenance Simulation by Means of Hand-Based Haptic Interfaces
INTERACT '09 Proceedings of the 12th IFIP TC 13 International Conference on Human-Computer Interaction: Part II
Dependability issues in visual-haptic interfaces
Journal of Visual Languages and Computing
Laissez-faire file sharing: access control designed for individuals at the endpoints
NSPW '09 Proceedings of the 2009 workshop on New security paradigms workshop
Facebook and privacy: it's complicated
Proceedings of the Eighth Symposium on Usable Privacy and Security
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User interfaces form a critical coupling between humans and computers. When the interface fails, the user fails, and the mission is lost. For example, in computer security applications, human-made configuration errors can expose entire systems to various forms of attack. To avoid interaction failures, a dependable user interface must facilitate the speedy and accurate completion of user tasks. Defects in the interface cause user errors (e.g., goal, plan, action and perception errors), which impinge on speed and accuracy goals, and can lead to mission failure. One source of user error is poor information representation in the interface. This can cause users to commit a specific class of errors 驴 goal errors. A design principle (anchor-based subgoaling) for mitigating this cause was formulated. The principle was evaluated in the domain of setting Windows file permissions. The native Windows XP file permissions interface, which did not support anchor-based subgoaling, was compared to an alternative, called Salmon, which did. In an experiment with 24 users, Salmon achieved as much as a four-fold increase in accuracy for a representative task and a 94% reduction in the number of goal errors committed, compared to the XP interface.