Purpose The discovery of the "right" ontology or ontology part is a central ingredient for effective ontology re-use. We present an approach for supporting a form of adaptive re-use of sub-ontologies, where the ontologies are deeply integrated beyond pure referencing. Design/methodology/approach Starting from an ontology draft which reflects the intended modeling perspective, the ontology engineer can be supported by suggesting similar already existing sub-ontologies and ways for integrating them with the existing draft ontology. Our approach combines syntactic, linguistic, structural and logical methods into an innovative modelingperspective aware solution for detecting matchings between concepts from different ontologies. This paper focuses on the discovery and matching phase of this re-use process. This work has been published at IJWIS'08 http://dx.doi.org/10.1108/17440080810882379 The work described in this paper has been partly funded by the European Commission t...