The conceptual data model presents the entities, attributes, and relationships for supplier data.

The logical data model presents the structure of the Operational Reference Store for supplier data, including the tables, columns, foreign key relationships, and lookups.

The database schema contains the base object tables, staging tables, and other elements required to create the schema for supplier data. You have a choice about whether you start the implementation with empty tables or whether you start with reference data. If you use the reference data, some of the repository tables are set up for you.