Organizations' migration to the cloud is a broad term that encompasses many different trends: (1) Moving existing applications from private data centers to AWS, Azure, or the Google Cloud Platform as cloud service providers (CSPs), often referred to as lift-and-shift or infrastructure-as-a-service (IaaS); (2) Completely restructuring how applications are built to make heavier use of prepackaged services available on these cloud service platforms – often referred to as lift-and-reshape, serverless, or platform-as-a-service (PaaS); (3) Choosing to forgo running copies of standard applications instead of having the application vendor host them is sometimes referred to as drop-and-shop or software-as-a-service (SaaS).