Request: When a principal tries to perform an operation using the AWS Console, AWS API, or AWS CLI, that principal must send a request. Request information includes
Action or Operation: the action the principal wants to perform.
Resource: resource information will be affected
Principal: information about the person or application sending the request, including policy information attached to that principal
Environment data: information about IP address, user agent, SSL enable status and time to send request
Resource data: information related to the resource that can be requested. For example the name of the DynamoDB data table, or the tag name of the EC2 virtual machine