Notes from the work.
What we've learned building data platforms, AI systems and software for real organisations.
AI
Why AI pilots stall at the data, not the model
A pilot that dazzles in a demo often falters in production. The reason is rarely the model. It is the data underneath it, and that is fixable.
Data engineering
Data contracts: stop upstream changes breaking everything downstream
A data contract is a promise between the team that produces data and the teams that depend on it. Here is how to put them in place without slowing anyone down.
Business intelligence
One definition per metric: why your dashboards disagree
When two reports show different revenue for the same month, the problem is rarely the maths. It is that the business never agreed what the number means.