AWS Step Functions

1. State machines

   Workflows defined as state machines, executions and state transitions.

2. Amazon States Language

   JSON-based definition language for states, transitions and data flow.

3. Workflow states

   Task, Choice, Parallel, Map, Wait, Pass, Succeed and Fail states.

4. Standard versus Express workflows

   Execution duration, semantics, throughput and pricing differences between workflow types.

5. Processing input and output

   InputPath, Parameters, ResultSelector, ResultPath, OutputPath and JSONata data handling.

6. Service integrations

   Request-response, run-a-job (.sync) and wait-for-callback integration patterns.

7. Optimized integrations

   Direct integrations with Lambda, DynamoDB, SNS, SQS, ECS, Batch and Bedrock.

8. Error handling

   Retry and Catch fields, error names and backoff strategies.

9. Logging and monitoring

   Execution history, CloudWatch Logs and X-Ray tracing.

10. Security

    Execution roles and IAM permissions for state machines.

11. Best practices

    Design guidance for resilient and cost-effective workflows.

12. Quotas

    Execution, state and payload size limits.

Each section links to the official page. Titles and summaries by Extra Credit; the docs belong to their authors.