1. Designing Quality in Interaction, Department of Industrial Design, Eindhoven University of Technology, Den Dolech 2, 5612 AZ Eindhoven, The Netherlands
2. PonTeM, Wijchenseweg 122 D, 6538 SX Nijmegen, The Netherlands
3. Department of Special Education, Behavioural Science Institute, Radboud University Nijmegen, Postbus 9104, 6500 HE Nijmegen, The Netherlands
4. ID-StudioLab, Faculty of Industrial Design Engineering, Delft University of Technology, Landbergstraat 15, 2628 CE Delft, The Netherlands