Evidence is the product: Why methodology matters so much

Published on
September 15, 2025
Read time
3 min
https://www.visfo.health/resource/evidence-is-the-product-why-methodology-matters-so-much
Contributors
Paul​ Granby
Head of Informatics
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I often think about evidence in the same way a craftsman thinks about their tools. You can produce something that looks finished, but if the workmanship is weak, the cracks will show over time. In healthcare consulting, the product is not only the conclusion we deliver; it is the process, the methodology, and the transparency that underpin it.

When clients look at the charts, summaries, or dashboards we produce, the value does not lie in the neatness of the visuals. It lies in the confidence they can place in how we got there. That is why I believe methodology matters just as much, if not more, than the outcome itself.

Why evidence is only as strong as its foundations

When I trained as a health economist, I learned very quickly that numbers can be persuasive but misleading. A cost-effectiveness ratio or prevalence figure can look precise, but if the assumptions behind it are shaky, the insight will collapse under scrutiny.

This is why I stress that evidence is the product. A transparent, reproducible process is what gives findings credibility. Without that, you risk creating insights that cannot be trusted or defended. For pharmaceutical teams making multi-million-pound decisions, that lack of confidence is a serious liability.

At VISFO, we hold ourselves to the standard that every conclusion must be traceable back to its source, with methods clear enough that others could reproduce the path. The aim is not perfection, but robustness: insights that stand up to tough questions from regulators, payers, or investors.

Methodology as a differentiator

In consulting, it is tempting to focus on the final deliverable: the deck, the dashboard, or the headline figure. But in my view, the methodology is the true differentiator. Two teams can analyze the same data and reach different conclusions. What sets them apart is not access to the information, but the quality and transparency of the process.

Think of Alfred and Lucius Fox in the Batman films. Alfred ensures everything is steady and dependable, while Lucius provides the ingenuity and the tools. Good methodology blends both. It is structured and reliable, but also adaptive enough to integrate new data sources or innovative approaches when they add value.

This is especially important in health intelligence. Whether we are synthesizing literature, mapping competitors, or modeling epidemiology, our methods must balance rigor with practicality. They need to be structured enough to ensure reproducibility, but flexible enough to adapt to new challenges and client questions.

Building trust through transparency

When clients engage us, they are not just buying answers. They are investing in confidence. They need to be able to stand in front of their boards, regulators, or partners and say, “Here is what we know, and here is why we know it.”

That requires more than a polished output. It requires tools and systems that make methodology visible and accessible. In practice, this means intelligence boards that link insights directly back to sources, dashboards that show assumptions clearly, and reports that explain why one pathway was prioritized over another.

By embedding transparency into the way we work, we reduce the risk of surprise later on. If new data emerges or assumptions shift, the reasoning can be revisited and adapted without starting from scratch. This makes decisions more resilient and strategies more credible.

Closing thought

In healthcare, outcomes will always be the headline. But the integrity of those outcomes depends on the strength of the methodology beneath them. Evidence is not simply what you see at the end; it is the product of every decision, assumption, and method along the way.

That is why, at VISFO, we take as much pride in our methods as in our results. Because when the process is transparent and robust, the insights it produces are not just convincing, they are trustworthy. And that is the kind of evidence clients can act on with confidence.