UX CASE STUDY · ENTERPRISE HEALTHCARE INSURANCE B2B

UX CASE STUDY

Enterprise B2B Internal Insurance Application Redesign

Enterprise B2B Internal Insurance Application Redesign

Led the UX team through a redesign of a fragmented internal insurance application used across the company. Standardized workflows and reusable components reduced design-to-development handoff time by 40%, achieved 90%+ usability satisfaction, and secured Phase 2 funding from executive leadership.

This project, which is covered by a Non-Disclosure Agreement (NDA), restricts the sharing of detailed information and visuals. However, I can share an overview of my contributions, design approach, and the project's impact.

Role: Lead UX/UI Designer

Company: Optum Advisory

Timeline: 7 months

Team: Product Manager, Engineers, Offshore UX Team, Business Stakeholders

Platform: Enterprise B2B Web Application

Timeline: 7 months

Platform: Enterprise B2B Web Application

The Project


The Product: An inquiry management application within a multi-system insurance platform used by 100+ insurance processors at a major healthcare company.

The Users: Internal operations teams who process healthcare inquiries affecting millions of members daily.

The Company Stage: Large enterprise (Fortune 500) with legacy systems and technical debt, seeking to modernize their operations infrastructure.

My Role: Lead UX/UI Designer leading an offshore team through a 7-month consulting engagement at Optum Advisory.

The Challenge


Insurance processors couldn't complete a single workflow without:

  • Switching between 5 different applications

  • Re-entering the same data multiple times

  • Managing multiple login credentials

  • Manually tracking work in Excel alongside digital tools

  • New employee training took 2x longer than the industry standard because the system was so fragmented.

THE PROBLEM: Five Disconnected Systems

Participant #2, 3 years experience

"I have to switch between applications, and when I try to enter information in this application, it disappears and I have to type it again…"

My Design Approach

Discovery


What I did:

  • 8 user shadowing sessions observing real workflows in action

  • 5 in-depth interviews with processors across experience levels

  • Usage analytics analysis to identify friction points

  • Workshop with the UX team to map all workflow scenarios

What I discovered:

The business team had documented 2 workflow scenarios. In reality, there were 15+ variations involving:

  • 3 user roles with different permission levels

  • 3 legacy systems with incompatible data formats

  • 4 state-specific regulatory requirements

  • Coordination across multiple departments

Key Insight

Users had devised undocumented workarounds, including pasting screenshots into Excel spreadsheets and maintaining personal notes to recall which system contained specific data.

Complex workflow requiring coordination across 3 roles, 3 systems, and 4 state-specific requirements

An example of user mappings: a future-state workflow that focuses on multiple users and different levels of authorization.

Design Strategy & Principles


Based on research insights, I grounded the design in a few core principles:


  1. Reduce Cognitive Load: Keep interfaces simple and predictable

  2. Enable Scalability: Design patterns that grow with the product

  3. Design for Accessibility: Embedded WCAG standards across components

  4. Support Engineers: Create reusable components for faster delivery

Sample component documentation showing button states, form inputs, and interaction patterns

Sample component documentation showing button states, form inputs, and interaction patterns

Key Decisions & Trade-offs


  • Standardization vs. Customization
    Prioritized consistent patterns over per-team customization to reduce cognitive friction and streamline handoffs.

  • Progressive disclosure vs. Dense dashboards
    Early designs showed too much at once, so we moved toward progressive disclosure to focus users on core tasks first.

  • Speed vs. Full detail
    Optimized for quick task completion, accepting that less frequent deeper actions would require additional navigation.

Design Iteration: Benefit Quote Request Screen

Low-fidelity wireframe showing benefit quote request workflow

How the Solution Took Shape

Unified Task Panel vs. Separate Views

Users needed to see inquiry details, member information, and authorization status simultaneously. I evaluated three approaches:

Option A: Modal Overlay

  • Modal overlay for each subtask (keeps main screen clean)

  • Would force constant open/close/navigate

  • Users lose context when modal closes

  • Can't compare data across sections

❌ Option B: Tabbed Interface

  • Tabbed interface switching between views

  • Still requires switching, just fewer clicks

  • Users can't see multiple data points at once

  • Testing showed users forgot what tab held what info

Option C: Unified Side Panel

  • Unified side panel with collapsible sections

  • All relevant data visible in one view

  • Users can expand/collapse based on task needs

  • Maintains context throughout workflow

  • Testing showed 95% task completion with this approach

Validation


In usability testing, processors with Option C completed tasks without errors and provided overwhelmingly positive feedback.

Accessibility Iteration


What broke: During accessibility review, some font colors failed WCAG 2.0 AA contrast requirements on darker backgrounds.


My response:

  • Immediately updated accessible color palette

  • Added iconography to all status messages (redundant encoding beyond just color)

  • Updated all components using same color for consistency

  • Re-validated with automated tools + manual testing

Impact


Achieved WCAG 2.0 AA compliance while enhancing comprehension for all users, not just those with visual impairments.

Participant #3, 3 years experience, during usability testing

Participant #3, 3 years experience, during usability testing

"It's very easy to use. I can use it now, especially since we are in the busy month..."

The Solution


We delivered a unified application with guided workflows, replacing five fragmented systems with a single cohesive experience. Users now follow clear pathways through each stage, with embedded contextual help and automated processes eliminating manual handoffs.


After: A single unified application that consolidates all upgrade benefit inquiry workflows.

  1. Unified Workflow

Consolidated five applications into a single, guided experience with progress indicators and contextual help, eliminating platform switching entirely.

  1. Component Library

30+ documented, reusable components with anatomy specs and accessibility features, reducing design-to-dev handoff time by 40%.

  1. Business Configuration

Flexible system allowing business users to control workflows, validation rules, and field visibility without engineering dependency.

Impact & Results

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Task Completion Rate in Usability Testing

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Faster Handoff


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NPS Score


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User Satisfaction


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Task Completion Rate in Usability Teingst

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Faster Handoff


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User Satisfaction


Business Outcomes:

Secured CEO Approval & Phase 2 Funding: Design work directly contributed to budget approval for full implementation during the final presentation.

Contract Extension: Client has extended the engagement to support Phase 2 UI and API development.

Engineering Independence: Engineers implemented designs without ongoing design support, demonstrating documentation quality and thoroughness.

Eliminated Training Bottleneck: Intuitive workflows are expected to reduce new employee onboarding time significantly.

User Impact:

Eliminated constant platform switching and data re-entry that disrupted task flow

Automated manual processes that previously doubled user effort

Provided clear navigation and embedded guidance, reducing reliance on training and support tickets

Enabled confident decision-making through better information architecture and workflow design

What I Learned

What I Learned

What Drove Our Success

  1. Iterative component approach - Building alongside prototypes (not upfront) ensured every pattern solved real problems

  1. Stakeholder cadence - Bi-weekly presentations to 15-20 people including C-suite kept alignment and built trust

  1. Mid-stream adaptability - Adding business configuration became key differentiator in the Phase 2 pitch

What I'd Optimize Next Time

  1. Earlier developer collaboration - Involving engineers during component creation would catch constraints sooner

  1. Continuous Guerrilla Testing - Our two formal usability testing rounds were thorough, but quick hallway tests between rounds would have identified small issues faster, especially accessibility concerns that we caught late. I would schedule weekly 15-minute guerrilla tests with available users

  1. Documented Decision-Making Framework - I made dozens of strategic design decisions, such as choosing a component-first approach over three alternatives. Still, I did not systematically document the reasoning and trade-offs at the time. I would create a simple "decision log" in real-time for future reference and team knowledge sharing

Testimonials

Michael Phillips, UX Writer / Content Strategist at Optum

"Mara is a fantastic designer. I’m a content designer, UX writer, and Mara mega-fan. We worked together on multiple projects together at Optum from complex user flows with tricky stakeholder requirements to a redesign of our website’s main strategy and entry points. Mara was consistently curious, receptive, insightful, and productive. I would work with her again in a heartbeat."

Kate Hitchcock, Senior UX Designer at Optum

"Holy smokes, every now and then you come across a teammate who just blows expectations out of the water and DELIVERS! Mara is one such person. We brought Mara in to help deliver on a highly visible product with a seriously challenging timeline in complex space with an impact to millions of users. Mara showed a balance of curiosity, problem solving and tactical execution that outshines many people with more senior titles and I can truly say we could not have launched without her. Added to that, Mara is truly delightful human and partner to work with. I recommend her without hesitation."

Matthew Cooper, Senior Product Designer at National Grid

"I would definitely recommend Mara. I have worked with her at The Hartford, and while on the team with her, I observed that she has great design ideas, she is highly motivated and has a great attitude for pushing great design. She is approachable, asks the right questions to fully understand the assignment at hand, and is a great addition to the team."

Testimonials

Michael Phillips, UX Writer / Content Strategist at Optum

"Mara is a fantastic designer. I’m a content designer, UX writer, and Mara mega-fan. We worked together on multiple projects together at Optum from complex user flows with tricky stakeholder requirements to a redesign of our website’s main strategy and entry points. Mara was consistently curious, receptive, insightful, and productive. I would work with her again in a heartbeat."

Kate Hitchcock, Senior UX Designer at Optum

"Holy smokes, every now and then you come across a teammate who just blows expectations out of the water and DELIVERS! Mara is one such person. We brought Mara in to help deliver on a highly visible product with a seriously challenging timeline in complex space with an impact to millions of users. Mara showed a balance of curiosity, problem solving and tactical execution that outshines many people with more senior titles and I can truly say we could not have launched without her. Added to that, Mara is truly delightful human and partner to work with. I recommend her without hesitation."

Matthew Cooper, Senior Product Designer at National Grid

"I would definitely recommend Mara. I have worked with her at The Hartford, and while on the team with her, I observed that she has great design ideas, she is highly motivated and has a great attitude for pushing great design. She is approachable, asks the right questions to fully understand the assignment at hand, and is a great addition to the team."

Let's Work Together

© 2026 Mara Suwannawat MacBain. All rights reserved.

© 2026 Mara Suwannawat MacBain.

All rights reserved.