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    HCI & Computer Graphics
    COMP3145
    Progress0 / 73 topics
    Topics
    1. The Human: Input-output channels2. Human memory3. Thinking, Reasoning, Problem solving4. Emotions and Individual differences5. Psychology and design of interacting systems6. The Computer: Text entry devices7. Positioning, Pointing, and drawing devices8. Display devices9. Devices for virtual reality and 3D interaction10. Physical controls, Sensors and special devices11. Paper printing and scanning12. Memory, Processing and networks13. The Interaction: Models of interaction14. Frameworks and HCI15. Ergonomics16. Interaction styles17. Elements of the WIMP interfaces18. Interactivity and Context of interaction19. Usability Paradigm and Principles: Introduction20. Paradigms for interaction21. Interaction Design Basics: What is design22. Process of design and User focus23. Navigation design24. Screen design and layout25. Iteration and prototyping26. HCI in Software Process: Software life cycle27. Usability engineering28. Iterative design and prototyping29. Design rationale30. Design rules and Guidelines31. Golden rules and heuristics32. HCI patterns33. Evaluation techniques and methods34. Task analysis35. Universal design36. User support systems37. Computer Supported Cooperative Work38. Groupware systems39. Implementation of synchronous groupware40. Ubiquitous computing41. History of Computer Graphics42. Graphics architectures and software43. Imaging and vision: Pinhole camera, Human vision, Synthetic camera44. Modeling vs. rendering45. OpenGL Architecture46. Displaying simple two-dimensional geometric objects47. Positioning systems and windowed environment48. Color perception and models49. RGB, CMY, HLS color models50. Color transformations51. Color in OpenGL: RGB and indexed color52. Input: Network environment and client-server computing53. Input measures: event, sample and request input54. Using callbacks and picking55. Affine transformations: translation, rotation, scaling, shear56. Homogeneous coordinates and concatenation57. Current transformation and matrix stacks58. Three Dimensional Graphics: Classical viewing59. Specifying views in 3D60. Affine transformation in 3D61. Projective transformations62. Ray tracing63. Shading: Illumination and surface modeling64. Phong shading model65. Polygon shading66. Rasterization: Line drawing via Bresenham's algorithm67. Clipping and polygonal fill68. BitBlt operations69. Hidden surface removal (z buffer)70. Discrete Techniques: Buffers71. Reading and writing bitmaps and pixel maps72. Texture mapping73. Compositing
    COMP3145›User support systems
    HCI & Computer GraphicsTopic 36 of 73

    User support systems

    2 minread
    409words
    Beginnerlevel

    1. What are User Support Systems?

    Definition: User Support Systems are tools, features, or mechanisms within a software or interactive system that help users accomplish tasks, understand the system, and recover from errors.

    Key Idea: They aim to improve usability, reduce errors, and enhance user satisfaction by providing timely assistance or guidance during interaction.


    2. Purpose of User Support Systems

    • Help users learn and understand system functions
    • Provide guidance during task execution
    • Assist in error prevention and recovery
    • Enhance user confidence and efficiency
    • Reduce the need for external support or training

    3. Types of User Support Systems

    A. Help Systems

    • Definition: Built-in documentation or assistance that users can access when needed.

    • Features:

      • Context-sensitive help
      • FAQs
      • Tutorials and walkthroughs
    • Example: Pressing F1 in Windows applications to get relevant help

    B. Online Assistance / Virtual Assistants

    • Definition: Automated agents that provide guidance using natural language or chat interfaces.

    • Features:

      • Interactive FAQs
      • Chatbots for troubleshooting
      • Step-by-step instructions
    • Example: Siri, Alexa, or web-based chatbots

    C. User Manuals and Documentation

    • Definition: Detailed written guides explaining system features, workflows, and troubleshooting steps.

    • Features:

      • Step-by-step instructions
      • Illustrations or screenshots
      • Glossaries and indexes
    • Example: Adobe Photoshop user guide

    D. Error Prevention and Recovery Support

    • Definition: Features that help users avoid mistakes or recover from them.

    • Features:

      • Undo/redo options
      • Confirmation dialogs for critical actions
      • Informative error messages with solutions
    • Example: Gmail’s “Undo Send” or confirmation before deleting files

    E. Intelligent User Support Systems

    • Definition: Systems that adapt to user behavior and provide personalized assistance.

    • Features:

      • Adaptive tutorials
      • Recommendations based on previous interactions
      • Predictive error correction
    • Example: Microsoft Office Clippy (historical example) or modern AI-based assistants


    4. Key Principles for Designing User Support Systems

    1. Context-Sensitive Support

      • Provide help relevant to the current task or screen
    2. Accessibility and Visibility

      • Ensure support features are easy to find and use
    3. Conciseness and Clarity

      • Information should be simple, structured, and easy to understand
    4. Actionable Guidance

      • Offer clear steps users can follow to solve problems
    5. Feedback and Confirmation

      • Confirm that users’ actions are successful or guide recovery if errors occur

    5. Benefits of User Support Systems

    • Reduces learning curve for new users
    • Improves efficiency and productivity
    • Minimizes errors and frustration
    • Enhances user satisfaction and confidence
    • Supports accessibility and inclusivity

    Key Takeaways

    • User Support Systems are integral to HCI, providing guidance, help, and error recovery.
    • They can be manual, automated, or intelligent depending on the system and user needs.
    • Well-designed support systems improve usability, reduce errors, and enhance overall user experience.
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    Universal design
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    Computer Supported Cooperative Work

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      Est. reading time2 min
      Word count409
      Code examples0
      DifficultyBeginner