AWS services categories

Hello.

We could not find a document that categorizes and describes all services.
I think the following documents will be helpful.
https://aws.amazon.com/what-is/iaas/?nc1=h_ls

IaaS
You provision virtual cloud servers on Amazon EC2 with operating systems pre-installed on them. You have to install the application code and related software on the virtual machine.

PaaS
You use AWS Lambda to run application code without provisioning or managing infrastructure. For instance, you can simply write and upload the application code as a .zip file.

SaaS
You use Amazon WorkMail as a secure, fully managed business email and calendar service. You don't have to write your own application code or even worry about provisioning cloud servers and cloud storage infrastructure. Your team can directly create accounts in WorkMail and start sending and receiving email.