UCD and Usability

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    UCD and Usability - Presentation Transcript

    1. 30 April, 2005 Usability and User Centered Design
    2. User Centered Design
      • Some Principles:
      • Mold and structure the user interface around how people can, want or need to work.
      • Test the validity of a design in real world tests with actual users.
      • Training & Documentation are no substitute for good design.
    3. User Centered Design
      • User Centered Design
        • A Way of Doing Business
        • A Philosophy
        • An Attitude
        • A Focus
        • Embodied in a Methodology
      UCD has an essential role in customer-centric business practices. All internet, intranet and other IT projects would benefit from the integration of UCD principles.
    4. How Usability Fits In
      • User Centered Design
        • A Way of Doing Business
        • A Philosophy
        • An Attitude
        • A Focus
        • Embodied in a Methodology
      • Usability
        • THE Measurable Bi-product of UCD
      Results in Increased Usability
    5. Supporting Usability: The Five Pillars
      • User Centered Design
        • A Way of Doing Business
        • A Philosophy
        • An Attitude
        • A Focus
        • Embodied in a Methodology
      • Supported by 5 Pillars
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging
    6. Usability vs. Usefulness
      • Usability ≠ Usefulness
        • Usability, Ease of Use, is the Overall Goal
        • Usefulness/Utility = “Effectiveness”, only one aspect of Usability
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging
    7. Usability is on a Value Scale
      • The usability of a project or product can be expressed as a value on a scale from very poor to excellent .
      Poor Usability Excellent Usability Results in Increased Usability
    8. Increased Usability - ROI
      • Increased Usability = Increased Productivity
        • Reduced frustration
        • Increased throughput
        • Reduced learning curve
        • Increased uptake
        • Reduced training
        • Reduced support costs
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging
    9. The UCD Pillars – Varied Emphases
      • Shifting the Weight
        • Different projects will rely to varying extents on each pillar.
        • A consumer-facing site, for example, will require a heavier emphasis on “Engaging”.
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging
    10. UCD and Usability Strategies
      • To practice UCD, we rely on:
        • A solid business case
        • Well-defined use cases (the user’s goals)
        • Accurate user profiles
      • To improve usability, we rely on:
        • Understanding the user
        • Knowing & using standard practices
        • Testing and re-testing
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging
    11. UCD and Usability Roles
      • To practice UCD, we rely on:
        • A solid business case
        • Well-defined use cases (the user’s goals)
        • Accurate user profiles
      • To improve usability, we rely on:
        • Understanding the user
        • Knowing & using standard practices
        • Testing and re-testing
      Roles & Responsibilities Business Analyst and UCD Expert Developers Usability Specialist
    12. Mantras
      • “ Test Early, Test Often”
      • “ Documentation, Help Files and Training are No Substitute for Good Usability”
      Results in Increased Usability Efficient Easy-to-Learn Effective Error-Tolerant Engaging

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