We’ll do our best to keep it simple, like the picture below;
We need to define what each cloud model offers;
- Infrastructure as a Service (IaaS): It provides the necessary IT infrastructure, servers and provides unmanaged or managed cloud services. It is the basis of the pyramid.
- Platform as a Service (PaaS): It provides the necessary tools and removes otherwise persistent obstacles to develop, test, deploy and manage a new application, database, website and also allows developers to combine these components to form complete software solutions.
- Software as a Service (SaaS): It is the most usual IT application in the business world. Software that are designed to serve a specific purpose, or service. There is nothing to manage, deploy or orchestrate, you just use the software for its intended use. Especially cloud-based software provide fast and highly specialized business solutions. However, there is no room for customization and with every business facing different challenges, PaaS gains momentum for those who can actually utilize it to benefit from it.