Why AI initiatives fail without a semantic layer : how LLMs hallucinate SQL without business context and how semantic grounding fixes it.
Semantic layer vs. data catalog : complementary tools explained. One defines what data means, the other inventories what data exists.
Semantic layer vs. metrics layer : how they overlap, where they differ, and when you need one, the other, or both.
A step-by-step guide to building a semantic layer : from identifying core metrics to implementing views, documentation, and access policies.
