Metric and semantic layer engineering
A single, versioned, code-managed definition of every business metric — implemented in dbt Semantic Layer, Cube, AtScale, LookML, Power BI semantic models, or the warehouse-native semantic layer of choice. BI tools read metrics from this layer; they do not redefine them. The result is that revenue, active customer, gross margin, and every other metric mean exactly one thing across the BI estate — and that the definition is auditable, version-controlled, and changeable through review.