AWS service for coordinating multiple AWS services into serverless workflows using visual state machines. Like a conductor orchestrating different musicians to play a symphony together. The cross-cloud equivalents are Azure Logic Apps / Durable Functions (Azure), Cloud Workflows (GCP), and OCI Process Automation (OCI).
An order processing workflow uses Step Functions to coordinate payment, inventory check, and shipping in the correct sequence.
All are managed workflow orchestration services. AWS Step Functions and Google Cloud Workflows provide state-machine-based orchestration of services/APIs; Azure Durable Functions orchestrates workflows using code (Durable Task framework) and is tightly integrated with Azure Functions; OCI Workflows orchestrates OCI services and HTTP endpoints.