Huayin Wang

Analytical Practice Needs a Firmer Foundation

Description: Version 1.1 is a vocabulary revision, content-preserving: aligned with The Theory of Data, Version 4.0 — a measure is the governed family; a member of a measure is a governed series; a series is a typed binding of datums over one anchor. Nothing is altered in substan...

Analytical Practice Needs a Firmer Foundation

Description: Data teams have become much better at building reliable systems, yet a familiar class of analytical failures persists: dashboards that disagree under one metric name, means re-aggregated as means of means, inventory levels summed across time, filters that silently ch...