Data virtualization and the semantic layer : query without copying. How virtual datasets and Reflections eliminate unnecessary data movement.
The role of the semantic layer in data governance : centralized definitions, row-level security, column masking, and compliance traceability.
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.
