Vu Trinh,
semantic layerdata modelinganalyticsai engineering
This is useful because the semantic layer keeps coming back under different names: metrics layer, business logic layer, AI query interface, governed data contract. The link is worth keeping as a modern learning journal rather than a vendor pitch.
The caveat is that semantic layers can become governance theater if the organization does not agree on metric ownership. The product question is still who gets to define meaning and how that meaning survives tooling changes.