Open Nebula is an open-source project developing the industry standard solution for building and managing virtualized enterprise data centers and IaaS clouds. OpenNebula interoperability makes cloud an evolution by leveraging existing IT infrastructure, protecting your investments, and avoiding vendor lock-in. In contrast to other open-source management tools that only provide a special-purpose implementation of popular cloud interfaces on pre-defined environments, OpenNebula aims to provide a open, flexible, extensible, and comprehensive management layer to automate and orchestrate the operation of virtualized data centers by leveraging and integrating existing deployed solutions for networking, storage, virtualization, monitoring or user management.