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Application Integration

AWS Step Functions

"Visual workflow orchestration for distributed applications."

AWS Step Functions

AWS Step Functions is a serverless orchestration service that lets you integrate multiple AWS services into flexible workflows. It allows you to coordinate distributed applications and microservices using visual workflows.

Key Features

  • Visual Workflows: Design and visualize your application's logic as a state machine.
  • State Management: Automatically manages the state of each step and handles retries/failures.
  • Serverless Orchestration: Coordinates Lambda functions, ECS tasks, and more.
  • Long-running workflows: Can handle workflows that run for up to a year (Standard Workflows).

Exam Tips

  • "Orchestrate Workflows": Answer is Step Functions.
  • "Visual Interface": Answer is Step Functions.
  • "Coordinate Microservices": Answer is Step Functions.
  • "State Machine": The core concept of Step Functions.

Common Use Cases

  • Microservices Orchestration: Managing sequences of service calls.
  • Data Processing: ETL pipelines invoking Glue or EMR.
  • Business Process Automation: Handling approvals and long-running processes.
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