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In User Centred Design, the integration of knowledge of users work practice, preferences etc. into the design process is crucial to success. For this reason, video recording has become a widespread tool for documenting user activities observed in field studies, usability tests and user workshops. To make sense of video recordings - though a rewarding experience - is time consuming and mostly left to experts. Even though developers may ask for expert advice on usability matters, chances are that they will not follow it, given the technical and commercial trade-offs in every project.
Buur et al. (Sat,) studied this question.
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