Acknowledgements
I want to thank those people without whom this project would not exist:
Danijela Djokic,
Mattias Ljungström,
and Reto Wettach,
for their enduring support and for understanding my academic detours.
Frank Nelissen, for editing the words of my thesis.
André Bechtloff, Christian Behrens, Adam Danielsson, Markus Drews, Frank Hegel, André Knörig, Mey-Lean Kronemann, Johannes Landstorfer, Carolin Lewecke, Kai Mertens, Boris Mischnik, Tomek Ness, Sebastian Peters, Larissa Pschetz, Sebastian Scherhans, Sebastian Spiewok, Moritz Stefaner, Andreas Thom, Dorothea Timmermann, Friederike Timmermann, Marc Tönsing, Julia Werner, Andreas Zecher, and the entire Interface Design programme, for their help, advice and inspiration.
My parents, for everything.
Carola, for her patience and her endless love.

