The Semantic Layer is a 10-part series. Use this page as the table of contents and read the posts in order.

Read the series in order

  1. Raw Data Is Not Business Meaning
  2. The Semantic Layer Is Where Meaning Lives
  3. Entity Definitions Before Metrics
  4. Metric Definitions Need Owners
  5. Dimensions, Segments, and Permissioned Meaning
  6. Semantic Drift and Reconciliation
  7. Data Contracts for Business Meaning
  8. Semantic Layers in Operating Reviews
  9. Agent-Readable Business Context
  10. The Semantic Layer Audit

Start with Raw Data Is Not Business Meaning. If you want the practical diagnostic, jump to The Semantic Layer Audit.