Cloud Computing Service Models
IaaS, PaaS, SaaS, and Beyond
Introduction
Cloud computing service models define how services are delivered and consumed over the internet. From infrastructure provisioning to full-fledged applications, these models offer varying levels of control, flexibility, and management to users.
Key Cloud Service Models
1. Infrastructure as a Service (IaaS)
Provides virtualized computing resources such as servers, storage, and networks. Users manage OS, applications, and data while the provider manages the infrastructure.
Examples: AWS EC2, Microsoft Azure, Google Compute Engine.
2. Platform as a Service (PaaS)
Offers a platform with tools for developing, testing, and deploying applications. Developers focus on the app without worrying about underlying infrastructure.
Examples: Google App Engine, Microsoft Azure App Services, Heroku.
3. Software as a Service (SaaS)
Delivers fully functional applications accessible over the internet, eliminating the need for installation or maintenance.
Examples: Gmail, Salesforce, Microsoft 365.
4. Function as a Service (FaaS) / Serverless Computing
Enables developers to run code in response to events without managing servers, ensuring automatic scaling and billing per execution.
Examples: AWS Lambda, Google Cloud Functions, Azure Functions.
Conclusion
Choosing the right cloud service model depends on the organization's needs, technical expertise, and desired level of control over the computing environment.
Cloud Computing Service Models
👉 Want to learn about the types of clouds where these models are deployed?
Explore Cloud Types
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