Chapter 2 : Design Paradigm in HCI

Chapter 2 : Design Paradigm in HCI

1. Importance of Paradigms

   • Refers to approaches has been adapted by a community in terms of shared assumptions, concepts, values and practices
   • Artefact design concerns
     • how interactive system be developed to ensure its usability
     • how can the usability of an interactive system be measured
   • Studying the history
     • understanding a series of paradigm shifts
     • helps us make sense of this large and still growing field
     • new computing technologies create a new perceptions

2. Paradigm of HCI

   • Human Factors Engineering
   • Classical Cognitive Information
   • Embodied/Situated Interaction

3. Technological Context

   • recognisable eras and approaches associated
     • Pre-desktop
     • Desktop
     • Post-desktop

4. Interaction Styles

   • Types of interfaces
     • speech-based
     • standard GUI
     • multimedia
     • wearables
   • Type of interactions
     • command-based
       • typing commands
       • pressing buttons
       • found in computers, vending machines, etc
     • dialogue-based
       • speech-based
       • found in tele-booking, virtual tutoring
     • direct manipulation
       • interact with object in physical or virtual
       • in terms web-based system or digital apps
       • commonly done on GUI
       • interactions offers
         • easy learning/remembering
         • see direct results
         • incites exploring shaping mastery
       • Menu
       • windows
       • icons
       • speech interface
     • dynamic interaction
       • allow user to move through physical or virtual
       • interaction more natural but user may be subjected to invasive gears
       • wearable interface
       • filling up forms
       • robotic interface

5. Models of Interactions

   • comes in several forms
     • physical
       • abstract design rules
     • guidelines
       • advice how to achieve principle
     • standards
       • specific rules which more measureable
   • Shneiderman's 8 Golden Rules
     • 1. Strive for consistency 2. Enable frequent users to use shortcuts 3. offer informative feedback 4. design dialogs to yield closure 5. offer error prevention and simple error handling 6. permit easy reversal of actions. 7. support internal locus of controls 8. reduce short-term memory load