EDOS is a research project funded by the European Commission as a STREP project under the IST activities of the 6th Framework Programme. The project involves universities - Paris 7, Tel Aviv, Zurich and Geneva Universities -, research institutes - INRIA - and private companies - Caixa Magica, Nexedi, Nuxeo, Edge-IT and CSP Torino. The project aims to study and solve problems associated with the production, management and distribution of open source software packages.