It is kind of like an ORM. I find ORM's and semantic layers to be similar in many ways, except that semantic layers are meant for defining metrics too. These me

It is kind of like an ORM. I find ORM's and semantic layers to be similar in many ways, except that semantic layers are meant for defining metrics too. These metrics describe aggregating data. Like summing order amounts to get revenue, or counting order_ids to get sales. I wrote a series on semantic layers on my substack, hopefully it helps: https://davidsj.substack.com/p/semantic-superiority-part-1 https://davidsj.substack.com/p/semantic-superiority-part-1