https://wa.aws.amazon.com/wat.concept.rca.en.html
Applying the RCA process help you understand the causes of a failure, and how to prevent it from happening again in the future.
Effective RCA requires a focus on eliminating the problem, rather than just understanding it. You should be wary of cognitive biases that make you focus on recent occurrences (vs all), or looking for data that confirms your assumptions.
General process:
- Define problem
- Collect Data
- Identify Root Causes
- Use Five whys and Ishikawa diagrams
- Implement Countermeasures
- Evaluate & Follow-up