Understanding perception is critical to effective visualization design. With its low cost and scalability, crowdsourcing presents an attractive option for evaluating the large des...
We introduce a conceptual framework that articulates the mechanics of collaboration for shared-workspace groupware: the low level actions and interactions that must be carried out...
Supporting awareness plays a prominent role in facilitating natural and effective communication in Instant Messaging (IM). This paper reports our empirical study of awareness in I...
As user interfaces become more and more complex and feature laden, usability tends to decrease. One possibility to counter this effect are intelligent support mechanisms. In this ...
In our research, we have been concerned with the question of how to make relevant features of security situations visible to users in order to allow them to make informed decision...