@arungupta@mjasay ORMs forced people to create a class for every entity in that diagram. With MongoDB, you'd cut that in 1/10th, replacing all of those ORM classes with things. like maps and lists on a far smaller number of classes. The simplification of code was massive. 10x win.
@arungupta@mjasay This image was from the same deck. I think this was Magento's schema for a product catalog entry or Oracle's model for a customer address. We'd routinely see people with relational data models like this where we could reduce the number of tables from 100s to 10.
@mjasay@arungupta The analogy was a parking garage. In a relational parking garage, we disassemble your car, put your steering wheel in a bin of steering wheels etc. when you want to leave, we have to reassemble your car. In the Document parking garage, we leave you car intact; just park it.
@mjasay@arungupta ha. i'm going through some of my archives and i came across this other slide which i think we can all agree is one of the greatest slides ever made.