The RELATE interaction model is designed to support spontaneous interaction of mobile users with devices and services in their environment. The model is based on spatial references that capture the spatial relationship of a user's device with ...

Keywords: Relative positioning, Spatial user interface, Spontaneous interaction

The engineering of ubiquitous computing systems provides important challenges. Not least among these is the need to understand how to implement designs that create a required experience for users. The paper explores a particular class of such systems ...

Large displays are rapidly proliferating in public spaces, and could therefore be an attractive resource to support nomadic users in such contexts, e. g. by providing additional screen real estate or by augmenting services delivered through a mobile ...

Keywords: mobile phones, navigation support, public displays, user study

Recognized evaluation strategies are essential to systematically advance a research field's state of the art. Pervasive and ubiquitous computing need such strategies to mature as a discipline and to enable researchers to objectively assess and compare ...

Keywords: ubiquitous computing, design Studies, measurement techniques, usability testing, user interfaces, human factors, human-centered computing, evaluation/methodology (user interfaces), pervasive computing

Engineering natural and appropriate interactive behaviour in ubiquitous computing systems presents new challenges to their developers. This paper explores formal models of interactive behaviour in ubiquitous systems. Of particular interest is the way ...

Keywords: human computer interaction, interactive systems, model checking, ubiquitous computing

As the number of public displays in the environment increases, new opportunities open up to improve situated interaction and to enable new kinds of applications. In order to make distributed display resources available to nomadic users, a key issue to ...

Keywords: display sharing, interactive doorplates, participatory user study, pervasive navigation

A key issue in mobile and ambient computing is the effort required to rapidly prototype and evaluate user interfaces and applications. Existing technologies for these tasks suffer either from low fidelity (e.g. paper prototypes, mental walkthroughs) ...

Keywords: evaluation, immersive video, mobile and ambient user interfaces, rapid prototyping

The main objective of the third workshop on Multi-User and Ubiquitous User Interfaces (MU3I 2006) is to bring people with relevant backgrounds (e.g. interface design, CSCW, ubiquitous computing) together to discuss two key questions in this field: How ...

Keywords: multi-user interfaces, ubiquitous interfaces

We describe findings from field work at a residential community care facility for ex-psychiatric hospital patients. The field work focused on distributed care-workers who looked after residents at the two sites forming the facility. We reflect on the ...

Keywords: health care, participatory design, ubiquitous computing/smart environments, user studies

Location information can be used to enhance interaction with mobile devices. While many location systems require instrumentation of the environment, we present a system that allows devices to measure their spatial relations in a true peer-to-peer fashion. ...

Keywords: context-aware computing, location systems, mobile computing, spatial relations, spatially-aware interfaces