Objecteering/UML Profile Builder provides an explorer and on-line hypertext help for the Objecteering/UML metamodel.This metamodel, which was itself defined in UML, is easily accessible by the user. New annotations (tagged values, stereotypes) and new text types, destined to specialize models and drive transformations, can be added at metamodel level. A complete environment for developing rules using the J language (including an interpreter) can be used to build transformation rules and fine tune them on a project, before diffusing them on real projects.

A vast utilities library allows you to easily implement new functions in Objecteering/UML: creating, modifying and positioning diagrams, running specialized editors, maintaining consistency between the model and the code generated, calling external environment, etc.