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Is there a problem?

Mens en Informatietechnologie: User Interface Design - Cognitive Ergonomics Gerrit C. van der Veer, gerrit@acm.org / afspraken via elly@cs.vu.nl +31-20-5987764/5987718. Is there a problem?. A one day course on theory, methods, and techniques.

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Is there a problem?

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  1. Mens en Informatietechnologie:User Interface Design - Cognitive ErgonomicsGerrit C. van der Veer,gerrit@acm.org / afspraken via elly@cs.vu.nl+31-20-5987764/5987718

  2. Is there a problem?

  3. A one day course on theory, methods, and techniques 1. intro to cognitive ergonomics - & schools in C.E. 2. how to handle complexity: models for cognitive ergonomics 3. formal models for design 4. interaction design: techniques and tools

  4. The next phase: User Interface Design: • task analysis / detail design / evaluation techniques • based on current course and design method proposed “Realistic” design case, including “client” • choose techniques based on knowledge of theory and on situation, present arguments for choice and execution • apply in team work • present design report to client

  5. 1. Introduction to Cognitive Ergonomics / human-computer interaction • ergonomics & cognitive ergonomics • a first exercise in user centered design • illustration: design for a travel agency (video) • schools in cognitive ergonomics • literature

  6. Ergonomics – Adaptation?? Once upon a time in the West ….. The story of the first Ergonomist (California, 1872) – the “gold rush” – need for “transport for the poor”

  7. The idealist Ergonomist“adapt to the user”

  8. The business man“find a cheap solution and let people adapt”

  9. ergonomics & cognitive ergonomics The ergonomics problem: • adjust technology to human user • or the other way round? The cognitive ergonomics problem: • complex systems with different users in different roles and distributed technology in several contexts of use • relevant functionality not visible (all at once) • the role of knowledge and mental models • cognitive ergonomics / social ergonomics

  10. a first exercise in user centered design design a configuration for “cursor” keys ( )

  11. Possible solution

  12. Reasons for solutions • Functionality - relation to task • representation - ease of use • learning - investing learning time • physiology - speed of movements (and perception etc.)

  13. illustration: design for a travel agency (video “Usability Evaluation”, RACE project 1065 - ISSUE) Designing interactive systems for users: • important starting point: understanding user and task • so: go to the user, and observe the task • specify the user’s new task world • develop early ideas, represent for the user • evaluate early with the user • finish specifications

  14. schools in cognitive ergonomics British school (Green, Bernard, Johnson, Long) • cognitive psychology, model based North American school (Norman, Carroll, Moran, Newell) • success stories (Star - the theory is in the artifact), task models German speaking school (Oberquelle, Tauber, Pfaff) • partner models, architecture of user interface French school (Bisseret, Scapin & Sebillotte, Hoc) • process models, process control, task analysis Japanese School (Ishii) • Technology driven? Cooperation technology

  15. literature Http://www.cs.vu.nl/~gerrit/gta/uid Dix, Finlay, Abowd , Beale: Human-computer interaction Preece: Human-computer interaction Shneiderman: Designing the user interface Wilson, Corlett: Evaluation of human work

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