Ontology is a cross-disciplinary field concerned with the study of concepts and theories that support the building of shared conceptualizations of specific domains. In recent years, there has been a growing interest in the application of ontologies to solve modeling and classification problems in diverse areas such as Computer Science, Information Science, Philosophy, Artificial Intelligence, Linguistics, Knowledge Management and many others.

The Brazilian Conference on Ontologies (Ontobras) foresees an opportunity and scientific environment in which researchers and practitioners from Information Sciences and Computer Science can exchange the theories, methodologies, languages, tools and experience related to the ontology development and application. In particular, the community has put forward efforts in integrating previous events on Ontologies that happened in Brazil in recent years, in order to create a unique highly scientifically qualified international forum for presenting and discussing the subject in Brazil.