[Overview]

The Context

As Lead UX Designer for the Coachi app, I designed and optimised a camera recording feature that enabled users to film skiing sessions for AI-powered performance analysis.

This feature required not only intuitive recording controls but also clear guidance on how to capture usable, high-quality videos for accurate model outputs.

The Context

As Lead UX Designer for the Coachi app, I designed and optimised a camera recording feature that enabled users to film skiing sessions for AI-powered performance analysis.

This feature required not only intuitive recording controls but also clear guidance on how to capture usable, high-quality videos for accurate model outputs.

The Challenge

The initial concept tested well with users, but technical constraints in the AI joint tracking model revealed a critical risk: if skiers were not filmed with sufficient zoom or correct angles, the system could return inaccurate results. The challenge was to refine the camera flow to:

  • Prevent recording errors.

  • Guide users to film in ways that improved AI model accuracy.

  • Maintain an intuitive and lightweight recording experience.

The Challenge

The initial concept tested well with users, but technical constraints in the AI joint tracking model revealed a critical risk: if skiers were not filmed with sufficient zoom or correct angles, the system could return inaccurate results. The challenge was to refine the camera flow to:

  • Prevent recording errors.

  • Guide users to film in ways that improved AI model accuracy.

  • Maintain an intuitive and lightweight recording experience.

Key Contributions
  • Advocated for evidence-based iteration, aligning UX design with technical model performance needs.​

  • Translated complex AI requirements into simple, user-friendly visual aids and instructions.

  • Ensured usability remained intuitive while solving for accuracy-critical recording constraints.

Key Contributions
  • Advocated for evidence-based iteration, aligning UX design with technical model performance needs.​

  • Translated complex AI requirements into simple, user-friendly visual aids and instructions.

  • Ensured usability remained intuitive while solving for accuracy-critical recording constraints.

Skills Demonstrated

UX Research & Validation:

Product Strategy Alignment

Design Process

Design Thinking

Service Design Thinking

Figma

[Impact]

Improved AI Accuracy by 25%

Redesigned the camera interface and instructional flow to align with AI model constraints, reducing poor-quality video submissions and increasing the joint tracking model’s scoring accuracy by an estimated 25%.

Cut Recording Errors by 40%

Iterative design updates—including a redesigned filming guide and instructional overlay—resulted in a 40% drop in incorrectly captured sessions.

Bridged UX and AI Engineering

Led a cross-functional design process that translated complex AI requirements into intuitive visual aids and instructions, enabling non-technical users to film with confidence and improving usability without compromising model performance.

[My Process]

1. Initial Design & Testing
  • Created a 3x3 grid guide to help users keep the skier centred.

  • Designed pop-over filming tips advising how best to capture the skier.

  • Validated the flow through early usability testing, which confirmed users could easily follow instructions and record videos.

1. Initial Design & Testing
  • Created a 3x3 grid guide to help users keep the skier centred.

  • Designed pop-over filming tips advising how best to capture the skier.

  • Validated the flow through early usability testing, which confirmed users could easily follow instructions and record videos.

2. Technical Insights from AI Development
  • Learned that the joint tracking model required skiers to be filmed at closer zoom levels for accuracy.

  • Identified that the “skiing towards the camera” approach failed to capture fore–aft balance metrics reliably.​​

2. Technical Insights from AI Development
  • Learned that the joint tracking model required skiers to be filmed at closer zoom levels for accuracy.

  • Identified that the “skiing towards the camera” approach failed to capture fore–aft balance metrics reliably.​​

3. Iterative Redesign
Grid Update:

Adapted the 3x3 grid into a larger central guide, visually nudging users to zoom in further.

Zoom Control Redesign:

Redesigned the zoom control for better visibility and precision, reducing recording errors and ensuring skiers consistently filled the frame for accurate AI analysis.

Instructional Messaging:

Replaced lightweight popovers with a full instruction sheet, combining an infographic with clear bullet points for how to record correctly.

Flow Adjustment:

Updated instructions to encourage skiers to ski past the camera instead of towards it, giving the AI a more three-dimensional perspective for accurate scoring.

3. Iterative Redesign
Grid Update:

Adapted the 3x3 grid into a larger central guide, visually nudging users to zoom in further.

Zoom Control Redesign:

Redesigned the zoom control for better visibility and precision, reducing recording errors and ensuring skiers consistently filled the frame for accurate AI analysis.

Instructional Messaging:

Replaced lightweight popovers with a full instruction sheet, combining an infographic with clear bullet points for how to record correctly.

Flow Adjustment:

Updated instructions to encourage skiers to ski past the camera instead of towards it, giving the AI a more three-dimensional perspective for accurate scoring.

[Key Learnings]

Iterate with Evidence

User testing wasn’t just validation — it drove meaningful change. Each iteration responded to real usability feedback and technical AI constraints, transforming insights into targeted improvements that boosted both model accuracy and user satisfaction.

Design is a Team Sport

Cross-functional alignment made the solution stick. By partnering with engineers and product leads early, I ensured design decisions supported technical accuracy and business goals — proving that collaborative iteration delivers lasting impact.

Translate Tech into UX

I turned complex joint-tracking requirements into intuitive guidance — from redesigned grids to infographic-based instructions — empowering users to record better videos without needing technical know-how.

[Persona]

Jhon Roberts

Marketing Manager

Content

Age: 29

Location: New York City

Tech Proficiency: Moderate

Gender: Male

[Goal]

Quickly complete purchases without interruptions.

Trust the platform to handle her payment securely.

Access a seamless mobile shopping experience.

[Frustrations]

Long or confusing checkout processes.

Error messages that don’t explain the issue.

Poor mobile optimization that slows her down.

[My Process]

1. Initial Design & Testing
  • Created a 3x3 grid guide to help users keep the skier centred.

  • Designed pop-over filming tips advising how best to capture the skier.

  • Validated the flow through early usability testing, which confirmed users could easily follow instructions and record videos.

1. Initial Design & Testing
  • Created a 3x3 grid guide to help users keep the skier centred.

  • Designed pop-over filming tips advising how best to capture the skier.

  • Validated the flow through early usability testing, which confirmed users could easily follow instructions and record videos.

2. Technical Insights from AI Development
  • Learned that the joint tracking model required skiers to be filmed at closer zoom levels for accuracy.

  • Identified that the “skiing towards the camera” approach failed to capture fore–aft balance metrics reliably.​​

2. Technical Insights from AI Development
  • Learned that the joint tracking model required skiers to be filmed at closer zoom levels for accuracy.

  • Identified that the “skiing towards the camera” approach failed to capture fore–aft balance metrics reliably.​​

3. Iterative Redesign
Grid Update:

Adapted the 3x3 grid into a larger central guide, visually nudging users to zoom in further.

Zoom Control Redesign:

Redesigned the zoom control for better visibility and precision, reducing recording errors and ensuring skiers consistently filled the frame for accurate AI analysis.

Instructional Messaging:

Replaced lightweight popovers with a full instruction sheet, combining an infographic with clear bullet points for how to record correctly.

Flow Adjustment:

Updated instructions to encourage skiers to ski past the camera instead of towards it, giving the AI a more three-dimensional perspective for accurate scoring.

3. Iterative Redesign
Grid Update:

Adapted the 3x3 grid into a larger central guide, visually nudging users to zoom in further.

Zoom Control Redesign:

Redesigned the zoom control for better visibility and precision, reducing recording errors and ensuring skiers consistently filled the frame for accurate AI analysis.

Instructional Messaging:

Replaced lightweight popovers with a full instruction sheet, combining an infographic with clear bullet points for how to record correctly.

Flow Adjustment:

Updated instructions to encourage skiers to ski past the camera instead of towards it, giving the AI a more three-dimensional perspective for accurate scoring.

[Overview]

The Context

As Lead UX Designer for the Coachi app, I designed and optimised a camera recording feature that enabled users to film skiing sessions for AI-powered performance analysis.

This feature required not only intuitive recording controls but also clear guidance on how to capture usable, high-quality videos for accurate model outputs.

The Context

As Lead UX Designer for the Coachi app, I designed and optimised a camera recording feature that enabled users to film skiing sessions for AI-powered performance analysis.

This feature required not only intuitive recording controls but also clear guidance on how to capture usable, high-quality videos for accurate model outputs.

The Challenge

The initial concept tested well with users, but technical constraints in the AI joint tracking model revealed a critical risk: if skiers were not filmed with sufficient zoom or correct angles, the system could return inaccurate results. The challenge was to refine the camera flow to:

  • Prevent recording errors.

  • Guide users to film in ways that improved AI model accuracy.

  • Maintain an intuitive and lightweight recording experience.

The Challenge

The initial concept tested well with users, but technical constraints in the AI joint tracking model revealed a critical risk: if skiers were not filmed with sufficient zoom or correct angles, the system could return inaccurate results. The challenge was to refine the camera flow to:

  • Prevent recording errors.

  • Guide users to film in ways that improved AI model accuracy.

  • Maintain an intuitive and lightweight recording experience.

Key Contributions
  • Advocated for evidence-based iteration, aligning UX design with technical model performance needs.​

  • Translated complex AI requirements into simple, user-friendly visual aids and instructions.

  • Ensured usability remained intuitive while solving for accuracy-critical recording constraints.

Key Contributions
  • Advocated for evidence-based iteration, aligning UX design with technical model performance needs.​

  • Translated complex AI requirements into simple, user-friendly visual aids and instructions.

  • Ensured usability remained intuitive while solving for accuracy-critical recording constraints.

Skills Demonstrated

UX Research & Validation:

UX Research & Validation:

Product Strategy Alignment

Product Strategy Alignment

Design Process

Design Process

Design Thinking

Design Thinking

Service Design Thinking

Service Design Thinking

Figma

Figma

Timeline

Chip 1

[Key Learnings]

Iterate with Evidence

User testing wasn’t just validation — it drove meaningful change. Each iteration responded to real usability feedback and technical AI constraints, transforming insights into targeted improvements that boosted both model accuracy and user satisfaction.

Design is a Team Sport

Cross-functional alignment made the solution stick. By partnering with engineers and product leads early, I ensured design decisions supported technical accuracy and business goals — proving that collaborative iteration delivers lasting impact.

Translate Tech into UX

I turned complex joint-tracking requirements into intuitive guidance — from redesigned grids to infographic-based instructions — empowering users to record better videos without needing technical know-how.

[Impact]

Improved AI Accuracy by 25%

Redesigned the camera interface and instructional flow to align with AI model constraints, reducing poor-quality video submissions and increasing the joint tracking model’s scoring accuracy by an estimated 25%.

Cut Recording Errors by 40%

Iterative design updates—including a redesigned filming guide and instructional overlay—resulted in a 40% drop in incorrectly captured sessions.

Bridged UX and AI Engineering

Led a cross-functional design process that translated complex AI requirements into intuitive visual aids and instructions, enabling non-technical users to film with confidence and improving usability without compromising model performance.