16 pages matching Smalltalk in this book
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User Centered System Design
The Interface Experience
29 other sections not shown
action allow aspects behavior Boxer Chapter cognitive coherent command communication complex computer system concepts context delete design model develop direct manipulation direct manipulation interfaces discussion diSessa display document DWIM editor effect electronic environment error message evaluation example explanations facilities Figure function graphical Gulf of Evaluation Gulfs of Execution human-computer human-computer interaction icons ideas important intentions interaction interface design interface language InterLisp interpretation interrupted issues joystick kind knowledge base learner learning Lisp Lisp Machine Logo longjmp machine medium mental model mimesis mimetic mouse multiple activities Norman notecard objects operations output person physical Pinball Construction Set possible present problem procedure questions refer relevant reminders representation result screen semantic sequence simple Smalltalk specific structural model system image text editor things tion trackball understanding user's variables VISICALC visual