Chapter 8

Sensing: Being Aware of the Context

In the previous chapter, we saw how input and output surfaces can be integrated with the environment in various ways, and how tagging and other recognition techniques could connect things together. But whereas on a physical interaction level they were more a part of the world around them, these objects had little or no knowledge of what was actually going on in the world they were situated in—in other words, they were not aware of the context of the situation. This made sense for most digital products, up until quite recently. For instance, the operating conditions of a stationary personal computer in an office did not used to change very much. It would be situated in the same room, used by the same ...

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