RootCauseAnalysis

A blameless postmortem reconstructs incident timelines and classifies proximate vs contributing factors to generate actionable fixes. It enforces an actionability test to prioritize systemic interventions preventing recurrence without assigning individual blame.

Five Whys traces linear causal chains, while a Fishbone diagram maps contributing factors across operational categories. Both root cause analysis workflows feed into a broader postmortem to validate bias-resistant, actionable systemic remedies.

Use Fault Tree analysis for safety-critical Boolean AND-OR logic structures in security incidents, and Kepner-Tregoe for IS/IS-NOT deviation mapping. Fault Tree isolates critical system defenses, while Kepner-Tregoe narrows down specific incident deviations.

Yes, IS/IS-NOT analysis maps deviations to distinguish what the defect is from what it is not. This Kepner-Tregoe workflow reduces confirmation bias and isolates specific recurring software defect conditions to produce targeted action items.

Write action items by applying an actionability test to validated contributing factors, ensuring each item has a specific owner and verification method. This prioritizes systemic, implementable interventions targeting latent system defenses where changes prevent recurrence.

Yes, root cause analysis applies to pre-launch risk inversion by identifying latent system defenses and contributing factors before deployment. It converts potential operational system failures into prioritized, actionable interventions using postmortem workflows.