Difference between Data Model and Database Schema in DBMS?

Question

I know the Data Model is basically two types ER-Model and Relational Model & Database schema is also two type Physical and logical.

But I can not understand what

Answer 1

In my view Database model is prepared first and Database schema is followed by that . Data model gives the overall logical view of database model specially in term of their entity relationship whereas Database model is more concentric on entity and their attribute.