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Human Computer Interaction: The Design of Everyday Things (User Centered Design – Chapter 7)
The document discusses seven principles of user-centered design: simplify structure, visibility, mapping, constraints, error design, leveraging user knowledge, and standardization. It emphasizes designing based on the user's mental model by understanding how their conceptualization of a system develops from their knowledge and past experiences. The goal is for users to intuitively understand what actions are possible and what is occurring in a design by structuring it in a clear, visible, and standardized manner that maps to users' real-world expectations.
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Human Computer Interaction: The Design of Everyday Things (User Centered Design – Chapter 7)
- 1. User Centered Design TheDesign of Every Day Things
- 2. • User canfigure out what to do. • The user can tell what is going on Design must be in a way that:
- 3. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize • General knowledge • Past Experience • Tradition, rules • Hints or signs • Others experience • and so on..
- 4. Mental Model Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize Mental Model The design model The system image The user’s model
- 5. Mental Model Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize Mental Model The design model The system image The user’s model Conceptualization that the designer has in mind. What the user develops to explain the operation of the system Communication between designer or design and user
- 6. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize • Psychology of a person/user • Make task as simple as possible • Change the nature of the task • Hints or signs • Automate but keep the task same
- 7. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize• Make all the things visible • Interact with user using visual appearances.
- 8. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize
- 9. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize Described well in the slide “knowing what to do”
- 10. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize
- 11. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize
- 12. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize
- 13. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize
- 14. Seven Principals Simplify Structure Visibility MappingRight Power of Constraint Design the Error Use knowledge from world + head Standardize Above all ensure the standardization.
- 15.