In this pictorial we present a project case, where an interactive office environment was designed following concurrent prototyping embedded in an iterative design approach. The case illustrates how concurrent prototyping supports designing complex interactions between multiple people and multiple interactive objects, while innovating in both social and technological realm. Identified variables of the involved process allow steering the design towards a variety of possible solution qualities. We propose this approach as a viable strategy for dealing with the complexity of designing in the domain of Human-Building Interaction.

This study aimed to explore ways of user inputs through designing interactive game controllers with different type of sensor. From building four experiential prototypes on Pong, we learned to drive design by focusing on interaction qualities, which determine the use of sensors. We found that the interaction qualities together as a set offer a way to design aesthetics of behavior in interaction.

With Generation Y entering the workforce, for the first time IT tools at home are richer in interaction than tools at work. This study aims to demonstrate novel Generation Y interactions by mapping three interaction qualities identified in private and work contexts. In an interactive prototyping course three prototypes were built in which these qualities are demonstrated. From these prototypes, guidelines for supporting Generation Y interactions in future office contexts, were subsequently deducted.

We present a skeletal linked model of the human hand that has natural motion. We show how this can be achieved by introducing a new biology-based joint axis that simulates natural joint motion and a set of constraints that reduce an estimated 150 possible motions to twelve. The model is based on observation and literature.To facilitate testing and evaluation, we present a simple low polygon count skin that can stretch and bulge. To evaluate we first introduce a hand-motion taxonomy in a two-dimensional parameter space based on tasks that are evolutionary linked to the environment. Second, we discuss and test the model.The appendix shows motion sequences of the model and the real hand. Animations can be fetched from our website.