Understanding how interfaces affect users

Understanding how interfaces affect users

1. Affective Aspects: When computers are designed to recognize and express emotions

   • Affective: Producing an emotional response

2. Expressive Interfaces: To use expressive icons or graphical elements to convey emotions

   • Ex: Mac on screen when initiated
     • Ex 2: Clippy
       • Can be distractive for experienced users
   • They provide feedback, make it informative & fun, pleasurable to interact with
   • Have a right balance, so the look and feel are pleasing

3. User Frustration: effect ranges from feeling lightly amused to extreme anger

   • Ex: Application doesn't work
     • User expectations not met
       • Error pop-up that are vague and confusing
   • Caused by bad desing, no design, lack of thought
   • Avoid Gimmicks, upload page when completly ready
     • Avoid Error messages, provide info on how to solve the problem
       • Avoid overburdening the user, make tasks easier, automatic, and not confusing
         • Ex: Software update
         • Avoid incorrect plug-ins, or will cause user to leave the page
   • Dealing with frustration
     • Ex: Flaming

4. Take care of page Appearance

   • No overload of graphics, text, sound effects, childish designs, poorly laid keyboards
   • Be simple, silent, elegant and ergonomic

5. Anthropomorphism

   • Attribute human qualities to non human objects or things
     • Ex: Dancing fruit
       • Enjoyable & Fun to interact
         • Harmless bit of fun
     • Anthropomorphic interfaces can be
       • Boring for experienced users
       • Useful & Fun for new users
       • Types of Agents
         • Synthetic: 3D characters in video games
           • Animated Agents: Herman the bug, limited audio and animations
             • Emotional Agents: Aims to allow people to change moods to see how behavior changes
               • ARANZA ESTRADA A01176250
                 • Preece,Jennifer. (2002). Interaction Design. United States of America: John Wiley & Sons Inc.
         • Design Concerns
           • Appearance: Parsimony and simple
             • Behavior: Convincing when performing actions
               • Mode of Interaction: How it communicates
               • Ex: Exagerating expressions

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