Final answer:
User views are located in the External layer of the ANSI/SPARC database model, which is associated with the interface and user-specific abstractions.
Step-by-step explanation:
User views are contained in the External layer of the ANSI/SPARC model. This layer deals with how users interact with the system and how data is presented to them. It's the level closest to the users and is concerned with the user interface and user-specific abstraction processes
This layer can be contrasted with the Conceptual layer, which defines the logical structure of the entire database and is a community user view, and the Internal layer, also known as the physical layer, which deals with the physical storage and access paths for the database.