The User Interface Design Process Part 2

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04-ui_design_process.ppt

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  The User Interface Design Process Part 2 The User Interface Design Process Part

  Designing for People:  The Seven Commandments 1. Provide a multidisciplinary design team 2. Designing for People: The Seven Commandments 1. Provide a multidisciplinary design team 2. Solicit early & ongoing user involvement 3. Gain a complete understanding of users & their tasks 4. Create the appropriate design 5. Perform rapid prototyping & testing 6. Modify & iterate the design as much as possible 7. Integrate the design of all the system components.

  Usability ?  A quality attribute that assesses how easy a user interface is Usability ? A quality attribute that assesses how easy a user interface is to use. Also refers to methods for improving ease-of-use throughout the entire design process.

  Usability (cont. ) Usability (cont. )

  5 quality components of usability Learnability Efficiency Memorability Errors Satisfaction 5 quality components of usability Learnability Efficiency Memorability Errors Satisfaction

  Why usability is important?  One of the most important qualities of an interface Why usability is important? One of the most important qualities of an interface Discretionary use (Web sites) Mandatory use (business app)

  Usability vs. Utility ?  Utility refers to a system or product’s functionality. Usability vs. Utility ? Utility refers to a system or product’s functionality. Does it do what people want it to do?

  How to assess usability?  Table II. 1 (p. 70/101) How to assess usability? Table II. 1 (p. 70/101)




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