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Avinro

UMA

Cover image for UMA
ClientUMA Health
RoleLead Product Designer
Year2024
Read time4 min read
researchinteractionvisualstrategy

Outcome

6 wks
Delivered ahead of schedule
2 weeks early
87%
Task completion
Round 3, zero prompting
0
Design questions in sprint 1
Engineering team, post-handoff
0
Layout changes after handoff
First time for this client

Problem statement

UMA came to us with a big vision and an unclear product. The founding team understood what they wanted to achieve — help people manage their chronic health conditions — but had no framework for how to structure the experience, prioritise features, or communicate the product to investors or engineers.

The core challenge: turn ambiguity into a shippable product structure without overbuilding before the first user test.

Initial landscape mapping: three competing product directions from the founding team, all valid but mutually exclusive without a prioritisation framework.

My role and constraints

I joined as Lead Product Designer with full ownership of the UX strategy, information architecture, interaction design, and visual system.

Constraints:

  • 8-week runway before a seed fundraise presentation
  • Engineering team of two, no dedicated QA
  • No existing design assets or component library

Process

Research and discovery

Starting with a two-week research sprint, I conducted structured discovery across three tracks:

The biggest insight: users don't want more tracking — they want fewer decisions. The product had to reduce cognitive load, not add to it.

Affinity mapping across 8 user interviews — pain points clustered around decision fatigue, not data access.

Ideation

Ran a structured design sprint with the founders to narrow from five product directions to one testable concept: a daily check-in flow that surfaces only the decisions that matter that day.

IA map from the design sprint: single daily touchpoint as the product spine, with settings and history as secondary branches.

Key decisions made in this phase:

DecisionOption AOption B (chosen)Rationale
Core metaphorDashboardDaily briefReduced overwhelm in user tests
Primary input methodFormsVoice + tapLower friction for daily habit
Progress modelStreak counterTrend lineLess punitive when users miss days
Sprint decision matrix — narrowed from five product directions to one testable concept.

Prototyping and testing

Built three rounds of prototypes at increasing fidelity. By round three, task completion on the core check-in flow reached 87% with zero prompting.

Round 1: Paper wireframes → concept validation
Round 2: Figma lo-fi → flow and navigation
Round 3: Interactive prototype → usability and delight
Round 3 interactive prototype: the daily check-in flow that achieved 87% task completion.

Key decisions and trade-offs

Handoff-ready visual system: design tokens, component states, and spacing grid — the artefact that gave the engineering team zero questions in sprint 1.

Betting on a single daily moment. Rather than a persistent dashboard, I designed around one intentional daily touchpoint. This was a risk — it required strong push notification strategy — but dramatically simplified the IA and the visual hierarchy.

Deferred the analytics layer. The founders wanted rich historical charts in v1. I pushed back: our users were not data analysts. We shipped the trend line only, with a clear hook for the analytics view in v2. This saved approximately three engineering weeks.

Results and impact

Product screens used in the seed fundraise presentation, built directly from the UX system delivered in week 6.
  • UX system delivered in 6 weeks, two weeks ahead of schedule
  • Seed deck featuring the prototype raised the round at the target valuation
  • Engineering team began implementation with zero design questions in the first sprint
  • Zero layout changes requested after handoff (first time for this client)

Learnings

The most valuable skill was knowing what not to design. Every feature we cut made the product stronger. The constraint of a two-person engineering team was ultimately a creative gift — it forced radical prioritisation.

Next time, I would involve engineering earlier in the ideation phase. Their constraints would have sharpened the decisions faster.

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