Index
abstract images, 123
action plans, 164–171
actions, making obvious, 165–166
as active process, 164
analogies for, 165
analysis, 164
chunks, 166–167
complexity concerns, 166
composition, 164
concept, 164
corresponding to real-world tasks, 165
decomposing, 167
defined, 164
direct-manipulation interface and, 165
effects of, 165
emerging interaction paradigms and, 339
executing, 171–178
flexibility, 168–171
gestural phrases, 172
internal/external consistency and, 167
interruption/resumption, 170
simplifying, 166–168
action sequences
executing, 171–178
planning, 164–171
user interface controls and, 167
actions
making obvious, 165–166
reversibility of, 175–176
stages of, 160
activities
automation, 89
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