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Here are some references on AWS for Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS), in short, S3 belongs to Paas:
- IaaS (Infrastructure as a Service): AWS provides IaaS through services like Amazon EC2, which offers scalable computing capacity in the cloud. You can use IaaS to request and configure the resources you require to run your applications and IT systems.
- PaaS (Platform as a Service): AWS offers PaaS through services like AWS Elastic Beanstalk, which allows developers to deploy and manage applications without worrying about the underlying infrastructure. This helps you focus on the deployment and management of your applications.
- SaaS (Software as a Service): AWS provides SaaS through various third-party applications that are run and managed by the vendor. Examples include web-based email services where you can send and receive emails without managing the underlying infrastructure.
AWS offers a range of services that fall under different cloud service models: Infrastructure as a Service (IaaS), Platform as a Service (PaaS), and Software as a Service (SaaS). Here's a breakdown of some AWS services in each category:
IaaS (Infrastructure as a Service):
- Amazon Elastic Compute Cloud (EC2)
- Amazon Simple Storage Service (S3)
- Amazon Virtual Private Cloud (VPC)
- Amazon Elastic Block Store (EBS)
PaaS (Platform as a Service):
- AWS Elastic Beanstalk
- AWS Lambda
- AWS Fargate
- Amazon Elastic Container Service (ECS)
- Amazon Elastic Kubernetes Service (EKS)
SaaS (Software as a Service):
- Amazon DynamoDB
- Amazon SageMaker
- Amazon WorkSpaces
- Amazon WorkMail
Regarding Amazon S3, it is generally classified as an IaaS offering. S3 provides raw storage infrastructure that you can use to store and retrieve any amount of data at any time. You have direct control over the storage, which aligns with the IaaS model where you manage the storage yourself without having to worry about the underlying hardware.
It's worth noting that the classification of some services can be nuanced, and they may have characteristics that span multiple categories. The choice between IaaS, PaaS, and SaaS depends on the level of control and management you need for your specific use case. IaaS provides the highest level of control, while SaaS offers the most managed experience with the least amount of maintenance required from the user.
Sources
AWS services categories | AWS re:Post
Infrastructure Description and Controls - GxP Systems on AWS
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What is IaaS? - Infrastructure as a Service Explained - AWS
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