SMALLTALK-80: the interactive programming environment
SMALLTALK-80: the interactive programming environment
Stages and levels in human-machine interaction
International Journal of Man-Machine Studies
Designing the user interface: strategies for effective human-computer interaction
Designing the user interface: strategies for effective human-computer interaction
Fundamentals of interactive computer graphics
Fundamentals of interactive computer graphics
The construction of user interfaces and the object paradigm
European conference on object-oriented programming on ECOOP '87
The Architecture of Cognition
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
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PAC is an implementation model that attempts to bridge the gap between the abstract sphere of theoretical models such as GOMS [Card 83], and the practical affairs of building user interfaces. The foundation for PAC is the distinction promoted by some theoretical models between the semantic and the lexical aspects of the human-computer interaction [Foley 82, Norman 84, Shneiderman 87]. However, PAC stresses the fact that these notions do not form strict monolithic layers but instead, are distributed across various levels of abstraction.