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Characteristics of Graphical and Web User Interfaces

Characteristics of Graphical and Web User Interfaces. Lecture-2 Chapter 2, The Essential Guide to User Interface Design. Characteristics of GUI and Web interfaces. Interaction styles Direct Manipulation Characteristics of both Web page vs. Web application design

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Characteristics of Graphical and Web User Interfaces

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  1. Characteristics of Graphical and Web User Interfaces Lecture-2 Chapter 2, The Essential Guide to User Interface Design Computer Systems Interface

  2. Characteristics of GUI and Web interfaces • Interaction styles • Direct Manipulation • Characteristics of both • Web page vs. Web application design • General principles of UI design Computer Systems Interface

  3. Interaction styles • The method by which the user and a computer system communicate with one another • Command line • Menu selection • Form fill-in • Direct manipulation • Anthropomorphic Computer Systems Interface

  4. Command line Computer Systems Interface

  5. Menu selection Computer Systems Interface

  6. Form fill-in Computer Systems Interface

  7. Direct Manipulation Computer Systems Interface

  8. Anthropomorphic • Spoken natural language • Hand gestures Computer Systems Interface

  9. Anthropomorphic (cont.) • Facial expressions • Eye movements What??! OK Computer Systems Interface

  10. Examples Computer Systems Interface

  11. Examples • Honda BMI Computer Systems Interface

  12. Advantages and Disadvantages of Interaction styles See Table 2.1, p. 15 Computer Systems Interface

  13. The concept of Direct Manipulation • In practice, is direct manipulation of all objects and actions feasible? • Indirect manipulation • Text for symbols • Typing for pointing • Ex: Pointing & selecting menu (direct); Menu – textual list of operations (indirect) Computer Systems Interface

  14. Graphical systems: Advantages • Symbols recognized faster than text • Faster learning and use • More natural • Fewer errors • More control • More attractive • Low typing requirements • Etc. Computer Systems Interface

  15. Graphical systems: disadvantages • Greater design complexity • Inconsistency in technique & terminology • Human comprehension limitations • Inefficient for touch typists • May consume more screen space • Hardware limitations • Etc. Computer Systems Interface

  16. GUI vs. Web Design • Devices • User focus • Data/information • User tasks • Presentation elements • Navigation • Context • security • Etc. (See table 2.2, p.31) Computer Systems Interface

  17. Intranet vs. Internet • Users • Tasks • Type of information • Amount of information • Hardware & software • Design philosophy • Extranet? Computer Systems Interface

  18. Web Page vs. Application Design See p.40 Computer Systems Interface

  19. Principles of User Interface Design • The design goals in creating a UI • Both GUI and Web interfaces • How to implement these goals Computer Systems Interface

  20. Principles of UI Design (cont.) • Accessibility • Aesthetically Pleasing • Availability • Clarity • Compatibility • Configurability • Consistency • Control • Directness Computer Systems Interface

  21. Principles of UI Design (cont.) • Efficiency • Familiarity • Flexibility • Forgiveness • Immersion • Obviousness • Operability • Perceptibility • Positive first impression Computer Systems Interface

  22. Principles of UI Design (cont.) • Predictability • Recovery • Responsiveness • Safety • Simplicity • Transparency • Trade-offs • Visibility Computer Systems Interface

  23. Q/A • What are the different types of interaction styles? • Which one gets more focus today? Computer Systems Interface

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