Videotape has become one of the CHI community's most useful technologies: it allows us to analyze users' interactions with computers, prototype new interfaces, and prese...
Discretization is used in click-based graphical passwords so that approximately correct entries can be accepted by the system. We show that the existing discretization scheme of B...
Sonia Chiasson, Jayakumar Srinivasan, Robert Biddl...
Interaction cost is an important but poorly understood factor in visualization design. We propose a framework of interaction costs inspired by Norman's Seven Stages of Action ...
: This paper presents a lightweight form of usage-centered design that has proved particularly effective in designing highly usable Webbased applications. Fully compatible with bot...
We investigated ways that users could interact with Phicons in non-visual tabletop tangible user interfaces (TUIs). We carried out a brainstorming and rapid prototyping session wi...