Situated computing

Situated computing is an approach to system design that treats computational activity as inseparable from the physical, social, and cultural context in which it occurs. Drawing on the ethnomethodological tradition of Harold Garfinkel and the phenomenology of Martin Heidegger, situated computing rejects the abstraction of the user as a context-free information processor. Instead, it insists that the meaning and function of a computational system are constituted by the specific situations of its use. A spreadsheet in a financial trading room is not the same artifact as a spreadsheet in a household budget; the tool is identical, but the situated practice is not.

This perspective has profound implications for the design of context-aware computing systems. If context is not merely a set of measurable variables but a socially constituted field of meaning, then systems that infer context from sensor data alone will systematically misinterpret the situations they purport to serve. Situated computing demands not smarter sensors but thicker descriptions — accounts of practice that capture the interpretive work that humans perform to make sense of their environments.