Differences between a conceptual UML class diagram and an ERD?

Question

If I create a conceptual class diagram such that each class captures \'name\' and \'attributes\' but not \'operations\', have I not basically created what would be otherwise

Answer 1

There´s little difference in the expressiveness of both (if we just focus on the attributes, classes and associations part) if you use Extended Entity Relationship diagrams (the most common case nowadays)

True, they look very different at the graphical level since they use different symbols for the elements but the "semantics" are quite similar. They both allow inheritance (again, I´m talking about EER), n-ary associations, association classes, ...