Object–role modeling: Difference between revisions

Revision as of 18:50, 4 June 2018

Revision as of 02:25, 26 July 2018

Line 38:

=== Fact-based modeling ===

[[Fact-based modelingmodelling]] includes procedures for mapping facts to attribute-based structures, such as those of ER or UML.<ref name="orm.net"/>

Fact-based textual representations are based on formal subsets of native languages. ORM proponents argue that ORM models are easier to understand by people without a technical education. For example, proponents argue that object-role models are easier to understand than declarative languages such as [[Object Constraint Language]] (OCL) and other graphical languages such as [[Unified Modeling Language|UML]] class models.<ref name="orm.net"/> Fact-based graphical notations are more expressive than those of ER and [[Unified Modeling Language|UML]]. An object-role model can be automatically mapped to relational and deductive databases (such as [[datalog]]).<ref>http://www.ormfoundation.org/files/folders/orm_2010/entry2360.aspx</ref>