Interface design guidelines encourage designers to provide high-performance mechanisms
for expert users. However, research shows that many expert interface components are …

Menus are used for exploring and selecting commands in interactive applications. They are
widespread in current systems and used by a large variety of users. As a consequence, they …

The study of expertise is difficult to do in a laboratory environment due to the challenge of
finding people at different skill levels and the lack of time for participants to acquire mastery …

Allowing users of interactive systems to reflect on their task proficiency is often incidental.
This is unfortunate, as communicating meaningful task-related proficiency feedback could …

This article discusses the Keyboard Augmentation Toolkit (KAT), which supports the creation
of virtual keyboards that can be used both for standalone input (eg, for mid-air text entry) and …

The framework of plateaus, dips, and leaps shines light on periods when individuals may be
inventing new methods of skilled performance. We begin with a review of the role …

Bau and Mackays OctoPocus dynamic guide helps novices learn, execute, and remember
2D surface gestures. We adapt OctoPocus to 3D mid-air gestures in Virtual Reality (VR) …

Designers of GUI applications typically arrange commands in hierarchical structures, such
as menus, due to screen space limitations. However, hierarchical organisations are known …

This paper presents Arpège, a progressive multitouch input technique for learning chords,
as well as a robust recognizer and guidelines for building large chord vocabularies …

Spatial memory is an important facet of human cognition–it allows users to learn the
locations of items over time and retrieve them with little effort. In human-computer interfaces …