Plans and situated actions: the problem of human-machine communication
Plans and situated actions: the problem of human-machine communication
In the age of the smart machine: the future of work and power
In the age of the smart machine: the future of work and power
Trust, self-confidence, and operators' adaptation to automation
International Journal of Human-Computer Studies
Human operator expertise in diagnosis, decision-making, and time management
Expertise and technology
An orientation-based approach to expertise
Expertise and technology
Stress and operator decision making in coping with emergencies
International Journal of Human-Computer Studies
Human-computer interaction: psychology as a science of design
International Journal of Human-Computer Studies
The collaborative production of computer commands in command and control
International Journal of Human-Computer Studies
Activity theory, cognitive ergonomics and distributed cognition: three views of a transport company
International Journal of Human-Computer Studies - Understanding work and designing artefacts
Distributed cognition: toward a new foundation for human-computer interaction research
ACM Transactions on Computer-Human Interaction (TOCHI) - Special issue on human-computer interaction in the new millennium, Part 2
Towards a cognitive approach to human-machine cooperation in dynamic situations
International Journal of Human-Computer Studies
Cognitive Work Analysis: Towards Safe, Productive, and Healthy Computer-Based Work
Cognitive Work Analysis: Towards Safe, Productive, and Healthy Computer-Based Work
Usability Engineering
Information Processing and Human-Machine Interaction: An Approach to Cognitive Engineering
Information Processing and Human-Machine Interaction: An Approach to Cognitive Engineering
How do operators monitor a complex, dynamic work domain? The impact of control room technology
International Journal of Human-Computer Studies
Activity Theory and Distributed Cognition: Or What Does CSCW Need to DO with Theories?
Computer Supported Cooperative Work
Exploring 'Canned Communication' for coordinating distributed mobile work activities
Interacting with Computers
A novel design for an ultra-large screen display for industrial process control
EHAWC'07 Proceedings of the 2007 international conference on Ergonomics and health aspects of work with computers
Functional situation models in analyses of operating practices in complex work
Proceedings of the 30th European Conference on Cognitive Ergonomics
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Evaluation of the appropriateness of information technical systems for complex professional usage in safety-critical contexts poses significant methodical and practical challenges. In this study, the usability of a Safety Information and Alarm Panel (SIAP) in a nuclear power plant control room was tested. An integrated validation concept was used that included a new approach to measuring system and operator performance in complex work environments. The tested system was designed to aid the operators in severe disturbance and emergency situations. It had already been implemented at a nuclear power plant. The study was conducted in a full-scope training simulator. The results verified that an acceptable level of performance could be achieved when using the SIAP. When the operators' practices were analysed by a habit-centred analysis, it was discovered that the effects of the SIAP differed between crews and between test scenarios. Thus, the SIAP tended to promote coherence of practices but reduce situatively attentive action. In diffuse task contexts the tool failed to support the shift supervisor's control of the overall process situation, his awareness of the crew's work load and his ability to update the crew's awareness of the process. The operators reported that the system supported their process control activity and reduced stress in the situation, but the shift supervisors and operators also noticed some possible negative effects of the tool. These subjective evaluations corresponded to the effects observed in practice. The results revealed the complexity of the implementation of new tools into professional practice. It was proposed that a validation project should focus on the trajectory of development of the entire distributed cognitive system instead of comprehending validation studies as tests of the effects of information systems on a pre-defined process output. Formative evaluation criteria are needed in projecting distributed cognitive systems.