This document discusses migrating enterprises to cloud computing. It defines cloud computing as scalable IT capabilities provided as an on-demand service over the internet. There are three service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). There are also four deployment models: public clouds, private clouds, hybrid clouds, and community clouds. Migrating to the cloud provides benefits like lower costs, faster innovation, and elastic resources, but also raises concerns around data security, privacy, and network performance.