Plans and situated actions: the problem of human-machine communication
Plans and situated actions: the problem of human-machine communication
Beyond the interface: encountering artifacts in use
Designing interaction
Safeware: system safety and computers
Safeware: system safety and computers
External cognition: how do graphical representations work?
International Journal of Human-Computer Studies
Understanding Computers and Cognition: A New Foundation for Design
Understanding Computers and Cognition: A New Foundation for Design
The Psychology of Human-Computer Interaction
The Psychology of Human-Computer Interaction
Work-Oriented Design of Computer Artifacts
Work-Oriented Design of Computer Artifacts
A framework for OTSM TRIZ-based computer support to be used in complex problem management
International Journal of Computer Applications in Technology
Parameter network as a means for driving problem solving process
International Journal of Computer Applications in Technology
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In this paper the issue of system evolution is addressed. Activity Theory and the concept of exapansive cycles are reviewed as theories to explain systemic evolution. Contradictions often manifest themselves in deviating human behaviour or in modifications to external artefacts, i.e., they result in a form of systemic behaviour which has often been treated as undesirable. It is shown that contradictions within activity systems are both catalysts and opportunities for system change. In the context of safety-related systems this is put at the centre of investigation in the form of critical issues. An example from an industrial case study is reported, where this approach was applied, and where with this approach affective and communicational problems were identified.