An ER Model describes which type of schema?

An ER Model (Entity-Relationship Model) is a high-level conceptual tool used to represent the logical structure of a database. It focuses on entities, their attributes, and the relationships between them, without considering physical storage details. This makes it ideal for describing the conceptual schema, which defines the overall logical structure of the database from a user's perspective. The conceptual schema is independent of any specific database management system or storage mechanism. Therefore, the ER Model is used to describe the conceptual schema.