Digital Ground: Architecture, Pervasive Computing, and Environmental KnowingA theory of place for interaction design. Digital Ground is an architect's response to the design challenge posed by pervasive computing. One century into the electronic age, people have become accustomed to interacting indirectly, mediated through networks. But now as digital technology becomes invisibly embedded in everyday things, even more activities become mediated, and networks extend rather than replace architecture. The young field of