What is AWS Step Functions?

AWS Step Functions is a serverless orchestration service that lets you coordinate multiple AWS services into serverless workflows using visual workflows. It enables you to build distributed applications as a series of steps in a state machine. Step Functions supports Standard Workflows for long-running processes up to one year and Express Workflows for high-volume, short-duration workloads. It provides built-in error handling, retry logic, and parallel execution capabilities. Step Functions integrates with Lambda, ECS, SNS, SQS, DynamoDB, and other AWS services. It offers automatic scaling, execution history for debugging, and visual monitoring of workflow executions. Common use cases include data processing pipelines, microservices orchestration, and IT automation.