This paper contributes with the general problem of how transforming classical industry clusters in Virtual Organization Breeding Environments (VBEs). Having into account reference frameworks and models, a structured approach for implementing VBEs has been proposed and its preliminary results are presented here. This approach has been preliminarily tested in a cluster of moulds and dies industries from Brazil where the main VBE's characteristics have been found. In the future, it is intended to use this structured approach as a concrete mean to systematize the implementation of any type of VBE.