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By allowing any social institution to structure activity in any place, wireless information services break down the traditional mapping between institutions and places. This phenomenon greatly complicates the analysis of context for purposes of designing context-aware computing systems. Context has a physical, architectural aspect, but most aspects of… (More)
We argue that the analysis of agenttenvironment i n teractions should be extended to include the conventions and invariants maintained by agents throughout their activity. We refer to this thicker notion of environment a s a lifeworld and present a partial set of formal tools for describing structures of lifeworlds and the ways in which they computationally… (More)
Research on the Internet's role in politics has struggled to transcend technological determinism—the assumption, often inadvertent , that the technology simply imprints its own logic on social relationships. An alternative approach traces the ways, often numerous , in which an institution's participants appropriate the technology in the service of goals,… (More)
Please do not quote from this version, which differs slightly from the version that appeared in print. 4000 words.