The purpose of this call for tenders is to conclude a framework contract for out-tasking services related to computing, virtualisation, storage, back-up and computer room infrastructures. More specifically, the future contractor shall provide operational, architectural and project management services in the areas of: Windows, Unix (including Linux), back-up and storage, virtualisation, data centre infrastructure. The contractor shall provide these services in 3 basic modes of service delivery: (1) basic services, (2) complementary services and (3) ad hoc services.