6a01f810_oud_Models___Open_Source_Cloud__Infrastructure_Provision
[0] Applications [Datacenter Virtualization] Multi-tiered applications defined in a traditional, “enterprise” way [Infrastructure Provision] 
“Re-architected” applications to fit into the cloud paradigm
Eucalyptus, CloudStack, OpenStack & OpenNebula: A Tale of Two Cloud Models | Open Source Cloud
Infrastructure Provision