OPOS – Outdoor Play Observation Scheme


Method is used to evaluate children’s experience in outdoor pervasive gaming.


While playing the game, video is recorded. Afterwards the video is analyzed for physical activity, social interaction and focus (what are the children looking at). These objective results can be combined with subjective opinions of children gathered during interviews.


Objective measure of how much social interaction takes place. Doesn’t interfere during game play.


Coding of videos is very time consuming.

References describing the method

Bakker, S., Markopoulos, P., and de Kort, Y. 2008. OPOS: an observation scheme for evaluating head-up play. In Proceedings of the 5th Nordic Conference on Human-Computer interaction: Building Bridges (Lund, Sweden, October 20 – 22, 2008). NordiCHI ’08, vol. 358. ACM, New York, NY, 33-42.


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