Nowadays Semantic Web applications are still in an early stage. Ontology development is difficult and time-consuming, and this is even worsened by the fact that ontologies are mostly created from scratch, resulting in the "Babel of Ontologies" problem. In general it can be said that there is a lack of methods and tools supporting and facilitating ontology reuse. Furthermore, processes for evolving distributed ontologies haven't yet been established, thus making propagation of changes to distributed ontologies impossible. This paper discusses an infrastructure for searching, reusing and evolving ontologies in a distributed environment.
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