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 interaction design reflects not only how people deal with machine interfaces but also how people deal with each other in situations where interactivity has become ambient. It shifts previously utilitarian digital design concerns to a cultural level, adding notions of premise, appropriateness, and appreciation. Table of Contents Preface ix Acknowledgements xi Introduction xiii I Expectations 1 Interactive Futures 3 2 Embodied Predispositions 27 3 Habitual Contexts 47 II Technologies 4 Embedded Gear 67 5 Location Models 97 6 Situated Types 117 III Practices 7 Designing Interactions 147 8 Grounding Places 171 9 Accumulating Value 193 IV Epilogue 10 Going Native 211 Notes 215 Further Reading 253 References 255 Index 267