The Cameo Data Modeler plugin is an add-on for MagicDraw Standard, Professional, and Architect Editions. It is purchased separately; however, it is free of charge for MagicDraw Enterprise Edition. The Cameo Data Modeler plugin replaces the previous (free) Data Modeling Notations plugin that supported the business entity-relationship diagram (a simplified version of an entity- relationship diagram), for high level, abstract domain data modeling. This plugin repackages database and XML schema modeling functionality, previously available only in MagicDraw Architect and Enterprise editions.