Object role modeling example

This object-role modeling (ORM) diagram sample was designed on the base of the Wikimedia Commons file: Orm modell beispiel.gif. [commons.wikimedia.org/wiki/File:Orm_modell_beispiel.gif] "Object-role Modeling (ORM) is a fact-oriented modeling approach for expressing, transforming and querying information at a conceptual level. Unlike Entity-Relationship modeling and Unified Modeling Language class diagramming, fact-oriented modeling is attribute-free, treating all elementary facts as relationships expressed in natural language sentences. For information modeling, ORM graphical notations are typically far more expressive than other notations, and ORM’s attribute- free nature promotes semantic stability and facilitates natural verbalization." [www.orm.net/pdf/ORM2_TechReport1.pdf] The object-role model example "Object role modeling example" was designed using ConceptDraw PRO software extended with ORM Diagrams solution from Software Development area of ConceptDraw PRO Solution Park.