A conceptual schema or conceptual data model is a map of concepts and their relationships used for databases. This describes the semantics of an organization and represents a series of assertions about its nature. Specifically, it describes the things of significance to an organization (entity classes), about which it is inclined to collect information, and characteristics of (attributes) and associations between pairs of those things of significance (relationships).
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“I thought it was a wonderfully conceptual act actually, to fire a replica pistol at a figurehead—the guy could have been working for Andy Warhol!”
—J.G. (James Graham)
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