The goal of the TAO project is to define methods and tools for transition of legacy information systems to Service-Oriented Architecture (SOA), enabling semantic interoperability between heterogeneous data resources and distributed applications. This migration path is intended to be low-cost, to be accessible to both SMEs and large enterprises. TAO will ease the transition to Service-Oriented Architecture through Semantic Web Services bootstrapping - an innovative methodology, based on state-of-the-art ontology learning and semantic data integration.