Which AWS service decouples application components so that the components run independently?

Explanations:

Amazon Simple Notification Service (SNS) is a messaging service for pub/sub messaging, which allows applications to communicate via notifications but does not inherently decouple components.

Amazon Simple Workflow Service (SWF) is designed for coordinating distributed applications and workflows but does not specifically focus on decoupling components.

AWS Glue is a fully managed ETL (extract, transform, load) service primarily for data integration and transformation, not for decoupling application components.

Amazon Simple Queue Service (SQS) is a fully managed message queuing service that decouples application components by allowing them to communicate through message queues, enabling independent scaling and processing.