The Galaxy platform offers repositories of user data and related analysis processes (data histories and workflows). These repertories enable traceability and reproducibility of the processes within the platform. At a larger scale, to answer questions like "What protocol was used to analyze my data?" or "how were these data generated?", we could consider any protocol as a metadata set that annotates inputs and results.We present a preliminary approach for integrating the GALAXY workflows in an extensible meta-data management environment.Using ISA-tools, we have developed a formalism to describe an abstraction of data processing workflows. This specification, in the ISA-TAB format is named ISA-DATAFLOW.A conversion tool extracts a structured dataflow representation in GRAPHML, a generic XML graph format, from GALAXY workflows. This intermediary format can then be normalized using controlled vocabularies and converted into ISA-TAB following our ISA-DATAFLOW specification.We plan to integrate this work to propose advanced research functionalities within a virtual research environment (VRE) deployed on a geographically and thematically distributed infrastructure already using multiple Galaxy instances. Future developments will concern workflow meta-analysis and workflow composition assistance.