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Design Sprint Facilitation | 2024

Replacing months of guesswork in four days

Giving a team of eight a shared goal – and a guiding principle that lasted two years.

4

days 

8

participants 

1

prototype 

5

usability

tests 

1

guiding

principle

My contribution

Initiative

Facilitation

User research

Usability Testing

Summary

When a team needs momentum, not more planning.

The product had been in development for a year – without a shared goal, without a clear picture of who it was for. The team was building on instinct and reacting to individual stakeholder requests.

Instead of untangling what existed, we took a step back. Four focused days with eight people – developers, designers, and non-technical stakeholders – to ask one question: what would we build if we started fresh today?

How we ran it

Four days, one outcome per day

We ran a four-day version of the Google Design Sprint – tight enough to keep energy high, structured enough to get to a result. To fit our situation, we adapted some methods and replaced the expert interviews at the start with insights from research we had already done.

Day 1

Understand + Ideate

We defined our sprint question, our goal, and got aligned on who we were designing for.

Day 1

Understand + Ideate

We defined our sprint question, our goal, and got aligned on who we were designing for.

Day 2

Decide

We aligned on a final concept: Freedom for Experts, Simplicity for Novice.

Day 2

Decide

We aligned on a final concept: Freedom for Experts, Simplicity for Novice.

Day 3

Prototype

A paper prototype to stay focused on function, not form. Built together as a team.

Day 3

Prototype

A paper prototype to stay focused on function, not form. Built together as a team.

Day 4

Usability Testing

Five usability tests later the concept held up for both user types

Day 4

Usability Testing

Five usability tests later the concept held up for both user types

Outcome

A guiding principle that became the foundation of everything

Outcome

A guiding principle that became the foundation of everything

The most important outcome of the sprint wasn't the prototype. It was the guiding principle that gave the whole team a shared language – and a clear answer for every design decision that followed.

The sprint ended. The ideas didn't.

Long after the sprint was over, we kept coming back to its results. Whenever a design decision felt unclear, the guiding principle gave us a shared answer. And many of the feature ideas that came out of those four days found their way into the product – months later, when the time was right.

Learnings

What I take away

Trust the process.

An interdisciplinary team thinks differently. The mix of developers, designers, and non-technical people was essential – not just nice to have.

Trust the process.

An interdisciplinary team thinks differently. The mix of developers, designers, and non-technical people was essential – not just nice to have.

Test early, test fast.

Five usability tests in one day gave us more clarity than weeks of internal discussion would have.

Test early, test fast.

Five usability tests in one day gave us more clarity than weeks of internal discussion would have.

A good concept outlasts the momentum.

The prototype didn't survive. The guiding principle did – and carried us for two years.

A good concept outlasts the momentum.

The prototype didn't survive. The guiding principle did – and carried us for two years.

Judith Schmeier | Senior UX Designer - Product & Usability

based in Augsburg | looking for Jobs here or nearby

hello@schmeierhaft.de

© 2026 Judith Schmeier All rights reserved

Judith Schmeier | Senior UX Designer - Product & Usability

based in Augsburg | looking for Jobs here or nearby

hello@schmeierhaft.de

© 2026 Judith Schmeier All rights reserved

Judith Schmeier | Senior UX Designer - Product & Usability

based in Augsburg |
looking for Jobs here or nearby

hello@schmeierhaft.de

© 2026 Judith Schmeier All rights reserved