Service models

There are three major service models in the cloud computing environment, and depending on the use case of the organization, one of them is generally chosen:

• Software as a service (SaaS)
• Platform as a service (PaaS)
• Infrastructure as a service (IaaS)

Let's spend some time understanding each of these service models which will in turn help us decide the ideal one for our requirements. Depending on the service models that we choose, the security implementation varies considerably.