Oral Representation Feedback is a case study that centers on delivering an exceptional user experience for enhancing presentation skills. The tool is designed to offer multi-layered annotations on presentation videos, enabling real-time feedback based on predefined categories. Its primary goal is to help students and professionals refine their presentation techniques through a user-friendly, intuitive interface.

UX/UI Design Approach

User-Centric Interface

• Intuitive Navigation: The platform features a clean, well-organized layout that guides users through the process of selecting videos, annotating content, and accessing feedback. Emphasis was placed on reducing cognitive load, ensuring that even first-time users can easily navigate through the tool.
• Interactive Feedback: Real-time feedback is visually highlighted to capture user attention immediately. This includes dynamic overlays on video playback that pinpoint areas for improvement, making the learning process both engaging and efficient.

Visual Consistency and Clarity

• Modern Styling: By integrating design systems from Element UI and Bulma, the interface maintains a modern, consistent look across all pages. The use of BEM methodology ensures that CSS remains organized, scalable, and easy to maintain.
• Accessible Design: High-contrast color schemes, clear typography, and responsive layouts were implemented to ensure that the interface is accessible on various devices and by users with different needs.

Interactive Annotation Experience

• Layered Annotations: Users can add multiple layers of annotations to a single video. This approach allows for detailed feedback on different aspects of the presentation, such as tone, body language, and content delivery.
• Real-Time Interaction: The tool integrates real-time interactivity, where users can see feedback instantly as they interact with the video content. This immediacy helps in making the feedback actionable and timely.
• Integrated Wiki for Contextual Information: An in-built Wiki system allows users to add commentary and index professional models or previous student examples. This feature not only serves as a reference library but also supports collaborative learning.

Design Challenges and Solutions

Balancing Functionality with Simplicity

• Challenge: Integrating advanced annotation features without overwhelming the user.
• Solution: A progressive disclosure design pattern was adopted. Core features are immediately accessible, while advanced settings are tucked away under expandable menus. This ensures that users can choose their level of engagement based on their proficiency.

Ensuring Responsive and Fluid Interactions

• Challenge: Delivering real-time feedback and smooth video annotations without lag.
• Solution: Extensive user testing and iterative design refinements were conducted. The interface was optimized to handle concurrent interactions seamlessly, ensuring a fluid user experience even during high-load scenarios.

Maintaining Visual Consistency

• Challenge: Harmonizing elements from different UI libraries (Element UI and Bulma) while adhering to a unified design language.
• Solution: Custom style guides and component libraries were developed to bridge the differences, ensuring a cohesive look and feel across the application.

Impact on User Experience

The refined UX/UI design of Oral Representation Feedback has empowered users to easily annotate videos and receive meaningful, actionable feedback. By focusing on clarity, responsiveness, and interactivity, the platform helps users track their progress and make continual improvements in their presentation skills.

Future Enhancements

• Personalized Feedback Mechanisms: Incorporate AI-driven insights to further personalize user feedback.
• Enhanced Collaboration Tools: Expand the Wiki functionality to support real-time collaborative annotations and peer reviews.
• Expanded Accessibility Features: Continue to refine the interface to meet evolving accessibility standards and user needs.