Software as a Service (SaaS) refers to remote software delivery upon request. The solution is hosted in the cloud and access is provided via the Internet. SaaS is widely used among healthcare and engineering enterprises as it allows them to decrease costs, save time, easily update and maintain the solutions.
Platform as a Service (PaaS) is a cloud-based environment that is used for distant development, running and management of diverse applications. Enterprises benefit from using PaaS as it relieves them from capital expenditures on hardware and upgrades.
Infrastructure as a Service (IaaS) is the range of cloud services that provide customers with servers, data warehouses, networks, operating systems for independent software development, deployment, launch and management.