This paper presents a user interface to the User-Centred Knowledge Model (t-UCK). T-UCK is a knowledge modelling tool for designing knowledge-intensive systems. The model centres r...
Customized multimedia content delivery has become one of the most desirable applications to mobile device users. However its intense usage of wireless and user interfaces poses a ...
We designed an activity-based prototyping process realized in the ActivityDesigner system that combines the theoretical framework of Activity-Centered Design with traditional iter...
In this paper we analyze the problem of “situating explanations” in user assistance systems. We introduce semantic transparency as a user interface property that enables givin...
Two experimental tools to support usage-centered design using l use cases and canonical abstract prototypes are described. The models and methods of usage-centered design are outl...