|Organization||Ontology & Conceptual Modeling Research Group (NEMO)|
|Base standards||Unified Foundational Ontology (UFO)|
OntoUML is a ontologically well-founded language for Ontology-driven Conceptual Modeling. OntoUML is built as a UML extension based on the Unified Foundational Ontology (UFO). UFO was created by Giancarlo Guizzardi in his Ph.D. thesis and used to evaluate and re-design a fragment of the UML 2.0 metamodel. Giancarlo Guizzardi is a lead researcher at the Ontology & Conceptual Modeling Research Group (NEMO) located at the Federal University of Espírito Santo (UFES) in Vitória city, state of Espírito Santo, Brazil.
NEMO created an OntoUML infrastructure using Eclipse EMF for OntoUML model manipulation which serve as a basis for its tool support. NEMO has been actively working on tool support for the OntoUML Conceptual Modeling Language, respectively on:
- extensions of UML production-grade tools to support OntoUML, namely, the MDG for Enterprise Architect.
- a standalone tool called OntoUML Lightweight Editor (OLED) to the development, evaluation and implementation of domain ontologies.
- a legacy OntoUML editor based on an old version of Eclipse/GMF.
Check out a list of all publications of NEMO about ontologies and OntoUML: 
- Guizzardi, Giancarlo (2005). Ontological foundations for structural conceptual models (PDF). Enschede: Telematica Instituut Fundamental Research Series.
- "Ontology & Conceptual Modeling Research Group (NEMO)".
- "OntoUML infrastructure".
- "OntoUML lightweight editor (OLED) repository".
- "Legacy OntoUML editor".
- "NEMO publications".