This document discusses cloud computing concepts such as deployment models (public, private, hybrid cloud) and service models (SaaS, PaaS, IaaS). It outlines the main benefits of cloud computing like cost savings and flexibility as well as challenges around security, control and compatibility. The document then provides statistics on cloud infrastructure spending growth and workload distribution across different cloud models. It discusses barriers to cloud adoption and the importance of organizational change management. Finally, it lists tactics for a successful cloud migration like selecting the right technology, employee involvement, training and documenting progress.