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AL-804 (D) · Human Computer Interaction/Important Questions

Human Computer Interaction (AL-804 (D)) - Important Questions

  1. Unit 314 Marks High Priority

    Explain the Keystroke-Level Model (KLM) and compute task time for a given sequence of operators.

    Core modelling technique from Unit 3; frequently asked in past papers (KLM is a standard quantitative method to predict expert task time).

  2. Unit 314 Marks High Priority

    Explain GOMS and describe how GOMS is used to model and predict user performance. Provide an example of a GOMS task decomposition.

    Core analytical framework in Unit 3; commonly examined to assess ability to model user action sequences and predict performance.

  3. Unit 310 Marks High Priority

    Describe the Human Processor Model. Explain its main components (perceptual, cognitive, motor) and discuss how processor cycle times influence interface design and interaction speed.

    Foundational cognitive architecture in Unit 3; tests understanding of perceptual, cognitive and motor cycle times and their design implications.

  4. Unit 314 Marks High Priority

    Discuss black-box models of human performance covering perception, motor control, memory and problem-solving. Explain how each aspect affects interface design with suitable examples.

    Comprehensive topic heavily emphasized in Unit 3; assesses knowledge of human capabilities underlying interaction (perception, motor control, memory, problem solving) and their application to design.

  5. Unit 310 Marks High Priority

    Explain quantitative analysis of performance in HCI. Describe common metrics and techniques used to measure and predict task performance (for example, throughput, task time, and error rates) and outline how analytical models are applied to improve interface design.

    Quantitative evaluation is repeatedly asked in Unit 3; evaluates ability to apply metrics and analytical techniques for performance prediction and measurement.

  6. Unit 310 Marks High Priority

    Explain psychological user models (including mental models, goals and operator models). Discuss their role in predicting usability and informing interface design decisions.

    Psychological user models are core to Unit 3 and often examined; checks understanding of mental models, goals and operator concepts used to predict user behaviour.

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