A theory of the business
metric trees

A theory of the business

We run analysis after analysis to inform specific decisions, and then we throw them away. I think we could be building a theory of what moves the business.

Introducing Breakdown
metric trees

Introducing Breakdown

A metric tree is a DAG, and a DAG is something you can compute over. Breakdown is an open source engine for building metric trees and running rigorous root cause analysis over them.

Why is data hard?
trustworthy data

Why is data hard?

An accountant asked me why data is so hard. It made me think about the root causes of everything that can go wrong in delivering even the most basic analytics.