Reducing Cognitive Load in High-Stakes Lab Environments

I led research and design initiatives aimed to reduce cognitive load and improve decision-making confidence in high-risk blood analysis workflows.

Accessibility-aware chart designs

considering approved color variants

Scalable widget designs

to aid in faster task execution

Role

UX Researcher: Research planning, recruitment, roadmap, user interviews, prototype testing, team alignment, framework creation and adaptation

Team Members

1 Lead UX/UI Designer, 1 UX/UI Designer; in collaboration with 1 PO, 1 BPM, 1 Developer

Company

Roche

Context & Challenges

Unclear and inefficient toolset for task completion

Healthcare professionals performing lab analysis tend to work with dense datasets, repetitive workflows, strict quality requirements, time pressure, and varying accessibility needs. When it comes to improving efficiency of workflows, the challenge is not just designing features, but helping users complete critical tasks accurately and confidently while reducing cognitive effort. Through continuous discovery research, we identified two recurring issues that I wanted to investigate further.

1. Complex interpretation of information
2. Workflow efficiency disrupted by repetition
Initial research

Emerging themes reveal values and frustrations

Across various sessions with users, we noticed multiple recurring topics throughout their workflows. Methods: Continuous Discovery interviews with lab technicians and lab managers, moderated usability studies, unmoderated surveys, analysis of multiple products and workflows, stakeholder conversations, and existing product feedback.

Top Insight #1

Color signals support efficiency and confidence in scanning

Top Insight #2

Manual tasks performed repetitively slow down lab efficiency

Context deep dive

Gathering insights from the experts

After performing my own research on various types of color blindness and vision-related accessibility issues, I wanted to collaborate with experts on the matter. Filling the gaps with specialized perspectives would greatly enhance our understanding and design decisions.

Top current visual needs defined
UX/UI-approved design directions
Accessibility expert-supported design proposals
Product Realities

Addressing product & accessibility needs

Designing equipment and software for blood analysis laboratories across the world requires specific attention to detail and unique considerations.

Accessibility requirements
Regulatory environment
Existing user habits
Technical constraints
Strategic execution

Validating solutions for both clarity & efficiency

In preparation for testing, we focused on one main anchor: improve the effectiveness of healthcare professionals working in complex lab environments through clarity, confidence, and efficiency. From there, we decided the strongest route would be to create two initiatives.

Initiative 1

Improve chart interpretation considering accessibility standards

The study
Balancing Trade-offs
Initiative 2

Reduce workflow friction of repetitive tasks with a widget

The study
Balancing Trade-offs
Outcome & Impact

Stronger confidence in decision-making for high-risk situations

Both studies revealed that our lab users felt more confident having clear, accessibility-aware charts and widgets for interpreting blood analysis data and making high-risk decisions.

Increased awareness of accesibility in product designs
Widget strategy validated for workflow efficiency

Reflections

Efficiency comes from confidence in clear interpretations

These initiatives reinforced that improving healthcare software often requires addressing both task efficiency and information clarity. While one project focused on workflow support and the other on accessibility, both highlighted how reducing cognitive load can improve confidence, usability, and decision-making in high-stakes environments.