Learn how to implement DORA (DevOps Research and Assessment) scenario testing using AWS Fault Injection Service in this 44-minute conference talk from AWS Summit London 2025. Discover techniques for measuring and improving your organization's software delivery performance through controlled chaos engineering experiments. Explore how to use AWS Fault Injection Service to simulate real-world failures and test your system's resilience while gathering meaningful DORA metrics. Understand the integration between fault injection testing and key DORA metrics including deployment frequency, lead time for changes, change failure rate, and time to recovery. Gain practical insights into designing effective fault injection scenarios that align with DORA principles and help validate your system's ability to maintain high performance under adverse conditions.