Cloud computing has been the most exciting and disruptive force in the tech market in the last decade, and it's no longer an adjunct technology bolted onto a traditional infrastructure as a place to build a few customer-facing apps. The Forrester research firm predicts that it will continue to disrupt traditional computing models at least through 2020.

Cloud applications such as software-as-service (SaaS), business services and platforms like infrastructure-as-a-service (IaaS) and platform-as-a-service (PaaS) now drive a full spectrum of end-to-end enterprise transformation.

The global public cloud market will be $146 billion in 2017, up from just $87 billion in 2015, and is growing faster than we predicted just two years ago, at a 22 percent compound annual growth rate.