human computer interaction
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Define Human–Computer Interaction (HCI) and explain its primary purpose.
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List and briefly describe the three main components involved in HCI.
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Explain the difference between usability and user experience (UX).
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What is the significance of user-centered design (UCD) in HCI?
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Define affordance and provide one example from a digital interface.
Part B: Usability Principles
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State and explain five usability principles proposed by Jakob Nielsen.
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Describe the concept of mental models and explain why they matter in interface design.
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What is cognitive load? Provide an example of how interface designers can reduce it.
Part C: Interaction Design & Prototyping
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Identify and describe three types of prototyping used in HCI.
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Explain the importance of consistency in interface design. Provide two examples.
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What is Fitts’s Law? Give an example of how it can be applied to interface layout decisions.
Part D: Evaluation Methods
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Describe the difference between formative and summative evaluation.
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List and briefly explain three HCI evaluation techniques (e.g., heuristic evaluation, user testing, cognitive walkthrough).
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In what situations is heuristic evaluation more effective than user testing? Explain.
Part E: Case Study / Practical Application
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Consider a mobile banking app. Identify at least three usability issues that might occur and suggest improvements for each.
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Sketch (or describe) a simple improved login screen for the app, applying at least three HCI principles.
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Describe how you would conduct a user test for this redesigned login screen. Include:
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Number of users
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Tasks
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Metrics you would measure (e.g., time, errors, satisfaction)
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Part F
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In your opinion, what emerging technologies (e.g., VR, voice assistants, AI interfaces) will significantly impact the future of HCI? Explain why.
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Reflect on a digital product you use daily. Identify one aspect with good HCI design and one aspect with poor HCI design, explaining your reasoning.