Policy : Evidence Over Assumptions

Commitment to Informed Decision-Making
We believe that the strongest products are built on evidence, not guesswork. Assumptions create risk and lead to waste when left untested. By grounding decisions in data, research, and experimentation, we ensure our choices are informed, credible, and more likely to deliver meaningful outcomes. Evidence-based product development increases confidence across teams, stakeholders, and customers, creating a foundation for sustainable success.

What This Means
Evidence is a non-negotiable input into our product process. We expect teams to validate assumptions before scaling, continually using insights to shape strategy, prioritisation, and delivery.

Our commitment to evidence is built on:

• Customer Research & Insight – Leveraging qualitative and quantitative methods to deeply understand customer behaviour, needs, and pain points.
• Hypothesis-Driven Development – Treating ideas as testable hypotheses rather than certainties, validating them through experiments.
• Data-Informed Prioritisation – Using product analytics, business metrics, and customer signals to guide decisions and investment.
• Rapid Experimentation – Running lightweight tests, A/B experiments, and prototypes to learn quickly and reduce uncertainty.
• Validated Learning – Treating learning itself as an outcome, ensuring each experiment or release increases confidence in the product direction.

Why This Matters
Unchallenged assumptions lead to wasted investment, missed opportunities, and solutions that fail to meet real needs. Evidence ensures that our limited resources are directed where they will have the greatest impact. By putting evidence over assumptions, we increase trust in our decisions and strengthen the connection between what we build and the value it creates.

Our Expectation
All product teams must commit to evidence as the foundation of decision-making. Teams are expected to test assumptions early, measure outcomes, and continuously refine decisions based on what is learned.

To support this policy, shared frameworks, tools, and practices will be provided, ensuring teams have the means to embed evidence into everyday product work. By putting evidence over assumptions, we unlock Better Value Sooner Safer Happier, creating products that are validated, trusted, and impactful.

This policy establishes a culture of evidence-based decision-making while allowing teams to adapt methods to suit their unique context.