Navigation
- Skills Learned
- Describe Infrastructure-as-a-Service (IaaS)
- Describe Platform-as-a-Service (PaaS)
- Describe Software-as-a-Service (SaaS)
- Compare and contrast the three different service types
- Study Guide
Service Models responsibilities
As a service means which party will manage the particular layer and all the layers below.
- Software layer consists the application (application code and set) & the application data
- Platform layer means all the supporting software and the operating system required to host the application
- Infrastructure layer consists hardware the infrastructure and virtualization required to host the platform
| Layer | Layer |
|---|---|
| Application | Software |
| Data | Software |
| Runtime | Platform |
| Middleware | Platform |
| Operating System | Platform |
| Virtualization | Infrastructure |
| Servers | Infrastructure |
| Networking | Infrastructure |
| Storage | Infrastructure |
Responsibility Matrix
As such following table represents responsibilities
| Layer | On-Premises | IaaS | PaaS | SaaS |
|---|---|---|---|---|
| Application | You | You | You | Cloud provider |
| Data | You | You | You | Cloud provider |
| Runtime | You | You | Cloud provider | Cloud provider |
| Middleware | You | You | Cloud provider | Cloud provider |
| Operating System | You | You | Cloud provider | Cloud provider |
| Virtualization | You | Cloud provider | Cloud provider | Cloud provider |
| Servers | You | Cloud provider | Cloud provider | Cloud provider |
| Networking | You | Cloud provider | Cloud provider | Cloud provider |
| Storage | You | Cloud provider | Cloud provider | Cloud provider |