The biggest risk when creating a new product is that it won’t find its audience.Users might not understand it, or may not be willing to change their habits.Testing allows you to improve your concept dramatically before you start coding.A few hours of testing can save you a lot of time and money.

How a User Test Works in a Design Sprint

User testing is the final and crucial step of the Design Sprint. Its purpose is simple: put the prototype in front of real people from the target audience and observe how they react.

Tests can take place one-on-one, either in person or remotely via tools like Google Meet or Zoom.

Each session lasts about 30-40 minutes per participant.

A Simple, Pragmatic Approach

Unlike scientific research methods such as eyetracking, A/B testing, or large user panels, these tests are straightforward and fast. The goal is not perfection or statistical proof, but clear insights that guide decision-making.

What Happens During the Test

We ask the participant to:

  • Interact freely with the prototype
  • Complete a few simple, realistic tasks
  • Navigate without being guided or helped

Our role is not to lead them but to observe how naturally they understand and use the product.

Throughout the session, we pay close attention to:

  • Verbal reactions
  • Emotional responses
  • Moments of hesitation or frustration
  • Usability or ergonomic issues — the real pain points

We ask open questions so participants can express themselves freely and share their thoughts. This is often where the most interesting insights emerge — insights the team could never get internally.

  • Validating the Business Potential
  • Beyond usability, we also explore:
  • Does the product make sense to them?
  • Would they want to use it?
  • Would they be willing to pay for it — and how much?
  • What improvements would they expect?

This helps validate the value proposition and business model early on.

Sessions Are Recorded (important)

All tests are filmed so the team can:

  • Rewatch reactions in detail
  • Share key learnings
  • Make informed decisions based on real feedback

Why It’s So Powerful

Even a few minutes with someone completely neutral can reveal:

  • Most flaws
  • Missing features
  • Opportunities for improvement

And that’s the point: the prototype doesn’t need to be perfect. Its purpose is to help avoid the usual pitfalls of creating a digital product, before investing time and money in development.

Why

  • Confronting a product to its market
  • Quickly detect opportunities for improvement
  • Validate or prioritize functionalities
  • Obtain answers to your questions without having launched the product beforehand

How

  • 1:1 tests (face-to-face)
  • Remote testing (Google Meet, Zoom, etc.)
  • Test Scenario
  • The tests are recorded
  • Scorecard to fill in

Result

  • Scorecard for product review
  • Detected Pain Points
  • Prioritized Features
  • Opportunities and new ideas

Case study: Discover how one of our design sprint workshops contributed to the creation of the new swiss neobank Yuh, a partnership between Swissquote and Postfinance.

Yuh, video case study

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