models

models

1. Infrastructure as a service

   • An IaaS cloud offers access to the raw computing resources of a cloud service. Rather than purchasing hardware itself, the cloud customer purchases access to the cloud provider’s hardware according to the capacity required.

2. Software as a service

   • A SaaS cloud offers access to a complete software application which the cloud user accesses through a web browser or other software. Accessing the software in this manner eliminates or reduces the need to install software on the client machine and allows the service to support a wider range of devices. The software may in turn be hosted on a cloud platform or infrastructure.

3. Platform as a service

   • A PaaS cloud offers access to a computing platform which allows cloud customers to write applications to run within that platform, or another instance of it. The platform may in turn be hosted on a cloud IaaS.

4. SaaS

5. IaaS

6. PaaS