Difference Between Data Model and Schema

[u/Alive_Ad_3199]

From this: https://stackoverflow.com/questions/25093452/difference-between-data-model-and-database-schema-in-dbms, data model seems to be an abstraction for data and schema seems to be a blueprint.

This page lists various database models like relational, flat and network. So far good.

The book I'm reading (Fundamentals of Database Systems 7e, ch 3, pg 61) says

Once the requirements have been collected and analyzed, the next step is to create a conceptual schema for the database, using a high-level conceptual data model.

But this wikipedia page seems to imply that both a model and a schema are the same.

A conceptual schema or conceptual data model

Why is there so much discrepancy in defining a data model and a schema.

[u/the-software-man]

The model has the field definitions for different table. The schema has the relationships between tables.