Editing Conceptual schema (section)

{{Short description|High-level database design model}}
{{Refimprove|date=September 2014}}
A '''conceptual schema''' or '''conceptual data model''' is a high-level description of informational needs underlying the design of a [[database]].<ref>{{cite book |isbn=978-0-12-805476-5 |title=Topological UML Modeling: An Improved Approach for Domain Modeling and Software Development |last1=Osis |first1=Janis |last2=Donins |first2=Uldis |date=20 June 2017 |publisher=Elsevier Science }}</ref><ref>{{cite book |isbn=978-0-12-411461-6 |title=Business Intelligence Guidebook: From Data Integration to Analytics |last1=Sherman |first1=Rick |date=21 November 2014 |publisher=Elsevier Science }}</ref>  It typically includes only the core concepts and the main relationships among them. This is a high-level model with insufficient detail to build a complete, functional database.<ref>{{cite book |isbn=978-0-12-385126-0 |title=Data Architecture: From Zen to Reality |last1=Tupper |first1=Charles |date=2011 |publisher=Morgan Kaufmann }}</ref> It describes the structure of the whole database for a group of users. The conceptual model is also known as the [[data model]] that can be used to describe the conceptual schema when a database system is implemented.{{cn|date=March 2020}} It hides the internal details of physical storage and targets the description of entities, datatypes, relationships and constraints.