(also known as data cube within the field). See also Associative entity Concept map Database design Data structure diagram Enhanced entity–relationship model Enterprise architecture framework Entity Data Model Value range structure diagrams Comparison of data modeling tools Ontology Object-role modeling Three schema approach Structured entity relationship model Schema-agnostic databases References Further reading External links "The Entity Relationship Model: Toward a Unified View of Data" Entity Relationship Modelling Logical Data Structures (LDSs) - Getting started by Tony Drewry. Crow's Foot Notation Kinds of Data Models -- and How to Name Them presentation by David Hay 1976 introductions Data modeling diagrams Data modeling languages Modeling languages Taiwanese inventions