CS408 Human Computer Interaction Assignment 1 Fall 2025 Idea Solution
Human–Computer Interaction (CS408)
Assignment 1 — Fall 2025 | Total Marks: 20
Scenario Overview
A software company is designing a Virtual Reality Learning Studio for remote 3D classrooms. During usability testing, students reported issues such as navigation confusion, gestural fatigue, visual overload, and accessibility limitations. Using Khan et al. (2022) and lecture concepts (usability, cognitive load, accessibility, interaction types), the following analysis summarizes the key findings and proposed HCI-based solutions.
Assignment Solution Table
| Sr. No. | Section | Key Issues | Findings from Study | Proposed Solution |
|---|---|---|---|---|
| 1 | Navigation & Spatial Orientation | Users feel disoriented or dizzy while moving in 3D spaces (cybersickness). | Khan et al. (2022) noted that poor spatial cues and motion mismatch between visual and vestibular systems increase user disorientation and motion sickness. | Design consistent landmarks and reduce motion latency. Provide mini-maps, teleport options, and user-adjustable navigation comfort settings to minimize sensory mismatch. |
| 2 | Gesture & Interface Usability | Extended gestures cause fatigue, imprecise tracking, and user frustration. | The study found that repetitive and wide-range gestures lead to physical exhaustion and usability drop due to sensor limitations in immersive systems. | Simplify gestures with ergonomic motion design. Include alternative input options (voice or controller), and give visual feedback to confirm recognition. |
| 3 | Cognitive Load & Feedback | Multiple visual elements and pop-ups increase confusion and distraction. | According to Khan et al. (2022), cluttered visual interfaces and poor feedback loops overload users’ working memory, lowering task performance. | Apply minimalistic visual hierarchy and progressive disclosure. Provide timely, multimodal feedback (audio/haptic) and allow customization of information density. |
| 4 | Accessibility & Inclusivity | Users with visual or motor impairments find interaction difficult. | The review emphasizes lack of inclusive features in immersive environments; most systems ignore accessibility standards such as alternative input or scaling options. | Follow accessibility guidelines (WCAG/ISO 9241). Offer keyboard, voice, or simplified interfaces, and allow adjustable contrast, text scaling, and assistive device support. |
Reference:
Khan, G. Z., Ali, A., Ahmad, S., Khan, M. A., Ullah, M. I., et al. (2022). Challenges in HCI Design for Immersive Environments: A Systematic Literature Review. International Journal of Innovative Science and Research Technology, 7(11), 1846–1855.
Note: This answer is provided as just an Example of the Assignment Solution. Please read it carefully and rephrase it in your own words before submission.
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