What are the differences between IaaS, PaaS, and SaaS?

What are the differences between IaaS, PaaS, and SaaS?

IaaS (Infrastructure as a Service) provides virtualized computing resources over the internet. PaaS (Platform as a Service) offers a platform allowing customers to develop, run, and manage applications without dealing with the infrastructure. SaaS (Software as a Service) delivers software applications over the internet, on a subscription basis.

Can you give examples of each model?

Sure! Examples of IaaS include Amazon EC2 and Google Compute Engine. For PaaS, you have Heroku and Google App Engine. SaaS examples are Google Workspace and Salesforce.

Which model is best for startups?

It depends on the startup's needs. IaaS is great for flexibility and control, PaaS is ideal for rapid development, and SaaS is perfect for quick deployment without infrastructure management.

What are the cost implications of each model?

IaaS typically has variable costs based on usage, PaaS has a mix of fixed and variable costs depending on the services used, while SaaS usually has a subscription model with predictable costs.