EVALAB is a usability lab devoted to usability engineering of New Information Technologies in Healthcare. It is located on the campus of the University Hospital of Lille, France.
For the tests run in the usability lab, a panel of participants in the project observe the entire test session: project manager, user representatives, designer of the application, technician in charge of the re-engineering process, and a usability engineer. The session is completely recorded, using 4 synchronized videotapes. After the session, a debriefing involving all the participants allows to identify which parts of the activity must be precisely analyzed. This analysis is then performed by the usability engineer. Relying on the 4 videotapes, tasks and events are then logged with The Observer Video-Pro.
For field tests using portable labs, the procedure is slightly different. During the observation period, tasks and events are logged with Pocket Observer on a handheld device (HP iPaq). In parallel, the man-machine dialog is recorded with the portable lab. Then at the end of the session, a refined analysis is performed using the videotapes and The Observer Video-Pro. Data from live observation and post-hoc observation are then compared and/or combined.
For presentations purposes, video highlights are produced as MPEG-1 clips. In quantitative studies, summary statistics (task completion times, error rates) are exported to Excel and next to SPSS for hypothesis testing.
CERIM - Centre d'Etudes et de Recherches en Informatique Médicale
Faculté de Médecine
Université de Lille 2
1, Place de Verdun
F-59045 Lille Cedex
www.univ-lille2.fr/evalab [in French]