Furthermore the users should have better control over their tools in order to increase productivity and work satisfaction. To give the users this control the rational model of user support has to be abandoned. The world consists of fixed entities and relations between these. The world exists independent of any observer. Logic relations exist objectively.
Symbols represent reality.
Cognition is equivalent to symbol processing. Other parts of this model of the world is the cognitivistic model of the user, the cognitivistic model of interaction and the behaviouristic model of learning. The reason for the domination of these ideas in the field of computer science is that the world and man is described as entities with properties resembling those of computer systems, which makes these ideas easy to implement. As a theoretical foundation for a new model of user support I have chosen Autopoiesis. Autopoiesis is the name of a theory developed by two scientists from Chile, Varela and Maturana.