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Main Descriptors of Professional Gestures, Regarding to their Intergenerational Transfer

Sophie Le Bellu 1, * Benoît Le Blanc 2
* Corresponding author
2 COGNITIQUE
IMS - Laboratoire de l'intégration, du matériau au système
Abstract : Operational knowledge in industries is difficult to capture because of the tacit nature of gestures. The operators can be equipped with video capture devices. They can also be invited to describe the intentions of their gesture. But the bottleneck is in the gesture itself. This paper describes an experiment, which was performed at EDF (Electricité de France). Several categories of professional gestures were studied, and 10 of them were investigated. For the capture phase, the protocol aims to approach the intentions of operators, their mental models. We have produced training video material called "MAP" (Multimedia Apprenticeship Platform) for novices to learn and internalize the practice. An anthropocentric three-step methodology was applied. For all the gestures, eight descriptors were used to qualify the environment and the situation: realism, reproducibility, length, granularity, mobility, interaction, visual salience and haptic salience. A four-value scale is used on each descriptor to quantify the criticism of the gestures. Results include the perimeter of application of the MAP methodology, describing professional gestures which can be captured, formalized and transmitted. The majority of the descriptors have a moderated influence on the process, concentrating their impact on one point of the method. Only two descriptors have high-level impact on the whole process: interaction between operators and visual dimension during the realization of the professional gesture.
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Sophie Le Bellu, Benoît Le Blanc. Main Descriptors of Professional Gestures, Regarding to their Intergenerational Transfer. Main Descriptors of Professional Gestures, Regarding to their Intergenerational Transfer, Oct 2011, Bangkok, Thailand. pp.1-12. ⟨hal-00669725⟩

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