4. paradigms


A truly ubiquitous computing experience would require the spread of computational capabilities literally everywhere. Another way to achieve ubiquity is to carry all of your computational need with you everywhere, all the time. The field of wearable computing explores this interaction paradigm. How do you think the first-person emphasis of wearable computing compares with the third-person, or environmental, emphasis of ubiquitous computing? What impact would there be on context-aware computing if all of the sensors were attached to the individual instead of embedded in the environment?

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Many privacy arguments work in favor of a wearable, first-person perspective on sensing. When the sensing is based on the individual, then there is a chance the individual can limit the spread of information about himself. Community-based services, however, would require getting information into some centralized place, and there is more of an advantage for doing this with an environmental approach. It is also possible when anchoring sensing on the individual that that person might aid in the correct interpretation of the information.

Other exercises in this chapter

ex.4.1 (open), ex.4.2 (tut), ex.4.3 (tut), ex.4.4 (tut), ex.4.5 (open), ex.4.6 (tut), ex.4.7 (tut)

all exercises for this chapter