data warehouses 218 backup and data archivation 55 software 39 hardware 36 cloud computing 30 firm 29 computer security 26 more ... storage area networks 22 computer technology 22 public data networks 18 management information systems 18 servers 18 architecture of computational systems 17 working 17 savings 17 network applications 16 virtualization 16 database systems 15 data processing 15 data transmission 12 communication networks 11 technical infrastructure 11 information retrieval 11 computational centres 11 data collection 10 disk memories 9 data encryption 9 authentication 8 firewalls 8 quality 8 less ...