| Aspect | IaaS | PaaS | SaaS |
|---|
| Definition | Provides virtualized computing resources | Offers a platform for application development | Delivers software applications over the internet |
| Control | Users have control over OS, apps, and frameworks | Users focus on developing and deploying apps | Users only interact with the software |
| Responsibility | Users manage OS, apps, and runtime | Platform manages infrastructure and runtime | Provider manages everything (infrastructure, apps) |
| Example | AWS EC2, Microsoft Azure Virtual Machines | Heroku, Azure App Service | Gmail, Office 365 Apps, Google Workspace, Salesforce |
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