Data model: Difference between revisions

Revision as of 01:34, 29 March 2006

Revision as of 08:59, 18 April 2006

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For a specific application tables (objects, relations, ..., the naming conventions depend on the general model) are defined, for example "customer", "order", "item" as well as relations between them ("customer orders items").

If a relational model is used, sets of specific constraints[[constraint]]s ([[candidate key]]s, [[foreign key]]s) have to be defined (using the appropriate language as defined for the general model, e.g. [[SQL]]).

== Tools for creating a data model for an application ==