Caractéristiques, enjeux et défis de l'informatique portée

This article presents an overview of the characteristics, issues and challenges of wearable computing. Wearable computers are worn on the body. They possess four fundamental characteristics setting them apart from traditional computing devices: they are mobile, constantly available, (pro)active and can be used in a relatively transparent way. Their role is to assist a user who moves about while accomplishing real-world tasks. Since they are carried by the user and must face severe constraints of weight, size, seamless use, etc., their interface has a definite impact on user acceptability, and eventually on human performance and satisfaction. We analyze the characteristics of various input and output peripherals, and their impacts on human perception and cognition. We then emphasize the inadequacy of the peripherals and interaction mechanisms of traditional computers for wearable computers. Finally, we give several examples of tasks and application domains that could make good use of wearable computers.

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