User research and testing

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Grain texture.

Validate the idea before you invest in it.

We help organisations test services, concepts, and digital experiences with real users—so important decisions are based on evidence, not assumptions.

The Problem

Internal confidence is not user evidence.

Ideas often move into design or development before teams know:

Whether users need them

Whether people understand them

Where the experience creates friction

Whether the service is accessible

What should change before launch

Testing late makes problems harder and more expensive to fix.

What We Do

We turn assumptions into evidence.

User research

Understand real needs, behaviours, expectations, and barriers.

Concept testing

Find out whether an idea solves the right problem before building it.

Usability testing

Observe where people become confused, blocked, or unable to complete a task.

Journey research

Understand the complete experience across online and offline channels.

Accessibility testing

Assess whether the service works for people with different impairments and levels of digital confidence.

Evidence-led recommendations

Translate findings into clear priorities for design and delivery.

How We Work

Research focused on the decision you need to make.

01 — Define


Clarify the idea, assumptions, users, and business decision.


02 — Recruit


Identify the right participants for the research.


03 — Test


Observe how people understand, use, and experience the service.


04 — Learn


Identify patterns, pain points, unmet needs, and accessibility barriers.


05 — Recommend


Provide clear findings and practical next steps.


What You Get

Validated or challenged assumptions

Evidence from real users

Usability and accessibility findings

Priority pain points

Clear improvement opportunities

Greater confidence before investment

What Can We Test?

New service ideas

Websites and portals

Mobile applications

AI assistants and chatbots

Forms and application journeys

Prototypes and early concepts

Online and offline services

Existing services that are underperforming

What Makes It Different

We test the service—not only the screen.


A digital interface may appear simple while the wider service remains difficult.


We examine:


People → Journey → Channels → Process → Outcome


This helps organisations understand not only where users struggle, but why the problem exists.


Who We Are

Service designers and researchers experienced in complex environments.


Stray Theory combines user research, usability testing, service design, accessibility, UX, and digital transformation.


Our team’s experience includes work across government and complex service environments connected to:


HMRC · Ministry of Justice · HMCTS · BEIS/BFE · Insolvency Service


Client names and logos should only be used where the relationship and permissions are confirmed.


The Lead Magnet

What are you assuming about your users?


Download the Assumption-to-Evidence Canvas to identify:


What your team currently believes

Which assumptions create the greatest risk

Who needs to be involved in research

What should be tested first

What evidence is needed before proceeding


Download the Validation Canvas


Who This Is For


Research and testing can help when:


A new idea has not been tested with users

Stakeholders disagree about what users need

A service has low completion or adoption

Users frequently contact support

Accessibility concerns remain unresolved

A major investment decision is approaching

A team needs evidence before moving forward

Talk to Us

Build with evidence—not assumptions.


Test the idea early, uncover the risks, and make the next decision with greater confidence.


Discuss a User Research & Testing Sprint


Focused research. Clear findings. Practical recommendations.