Data Models – A collection of conceptual tools for describing data, data relationships, data semantics, and consistency constraints. – A data model provides a way to describe the design of a database at the physical, logical, and view levels.
Data Models– A collection of conceptual tools for describingdata, data relationships, data semantics, andconsistency constraints.– A data model provides a way to describe thedesign of a database at the physical, logical, andview levels.