1. Design and Evaluation of an Ambient Display to Support Time Management during Meetings Valentina Occhialini, Harm van Essen, Berry Eggen Intelligent Lighting Institute, Department of Industrial Design, Eindhoven University of Technology INTERACT 2011

2. Outline Introduction Related Work Design of the Ambient Display First prototype Second prototype Conclusions & Recommendations

3. Introduction

4. Related Work (1/2) Design dimensions – Information Capacity – Notification Level – Representational Fidelity – Aesthetic Emphasis

5. Related Work (2/2) Ambient displays that use light as mean of communication Ambient displays for meeting rooms

6. Design of the Ambient Display (1/4) Concept Description – Meeting duration – Meeting schedule – Activity duration – Progress of the meeting – Feedback on individual contribution time – Notification of transitions between activities

7. Design of the Ambient Display (2/4) Design Goals – Provide contextual information in an unobtrusive way – Reduce cognitive load for pacing and time keeping – The system should support different roles and activities within a meeting

8. Design of the Ambient Display (2/4) Design Goals – Invite meeting participants to a more accountable use of common time – Seek a balance between aesthetical and information quality

9. Design of the Ambient Display (3/4) Design Choices – Sared display – Low information capacity – Linear representation of time – Pre-attentive processing – Static status display, subtle transitions

10. Design of the Ambient Display (3/4) Design Choices – Multiple visualization modes to support different roles of participants – Convenient location for higher cognitive demanding tasks – Light beams as information medium

11. Design of the Ambient Display (4/4) Evaluation and Research questions

12. First prototype (1/2) Low-Fidelity graphical implementation – Meeting progress (size), Meeting schedule (color), Presentation mode (color intensity)

13. First prototype (1/2) Low-Fidelity graphical implementation – Notifications Time slot almost elapsed (dynamic change in length) Upcoming change in activity (color transition) Approaching end of presentation time (blink)

14. First prototype (2/2) In-Field Concept Evaluation and Results

15. First prototype (2/2) In-Field Concept Evaluation and Results – Design Choices – Perception, Interpretation, Experience

16. Second prototype (1/2) Halogen Spots Implementation – Meeting progress (direction), Meeting schedule (colors), Presentation mode (intensity)

17. Second prototype (1/2) Halogen Spots Implementation – Notifications Time slot almost elapsed (intensity) Approaching end of presentation (blink)

18. Second prototype (2/2) Controlled Context Evaluation and Results

19. Second prototype (2/2) Controlled Context Evaluation and Results – Design Choices – Perception, Interpretation

20. Conclusions & Recommendations Conclusions

21. Conclusions & Recommendations Further development – Additional investigation is needed to better understand the level of information detail our display requires – Special attention needs to be paid to users’ expectations towards the system’s behavior – The design of an interface and interaction styles allowing users to interact explicitly with such an information decoration system before and during the meeting

22. Q & A