Purpose
The purpose of this SOP is to establish a standardized, lightweight process for conducting Root Cause Analysis (RCA) whenever significant QA failures occur. In a lean QA environment, defects that escape to production or cause major rework cannot be treated as isolated mistakes—they must be analyzed systematically to prevent recurrence.
This SOP ensures that RCA is not an optional task but a disciplined activity triggered by failures. It provides a structured approach to identify what went wrong, why it happened, and how corrective and preventive actions can be applied. By following this SOP, QA teams at Memorres can reduce repeat issues, improve efficiency, and strengthen confidence in delivery quality.
Scope
This SOP applies to all QA projects across Memorres where failures result in:
- High-severity defects reported post-release.
- Repeated test case misses or regression gaps.
- Defects causing significant client escalation or reputational risk.
- Inefficiencies that lead to wasted effort (e.g., repeated rework due to the same oversight).
It is applicable to QA analysts, automation engineers, QA leads, and project managers. While QA teams initiate RCA, the process often involves collaboration with developers, product owners, and, in some cases, clients to confirm systemic issues.
This SOP does not replace regular defect tracking but extends it by ensuring failures are deeply investigated and translated into long-term improvements.
Main Section – RCA Process
The RCA process at Memorres is structured into five stages: Trigger → Data Collection → Analysis → Corrective/Preventive Action → Validation & Documentation.
| Stage | Action | Execution Guidance | Example |
| 1. Trigger | Identify when an RCA is required. | Triggered when high-severity defect is found post-release, repeated defects occur, or client escalations are received. | Escalation: Payment gateway regression failure missed during testing. |
| 2. Data Collection | Gather all related artifacts (test cases, logs, defect reports, timelines). | Collect evidence to avoid speculation. Include environment details and team notes. | Test case coverage documents show missing negative test for timeout scenario. |
| 3. Analysis | Identify root causes using structured techniques (5 Whys, Fishbone/Ishikawa). | Focus on systemic issues, not individual blame. Validate causes with data. | 5 Whys analysis: Timeout defect → test missing → no checklist for timeout → oversight due to time pressure. |
| 4. Corrective & Preventive Actions | Define actions to fix the immediate issue and prevent recurrence. | Corrective = address current defect. Preventive = change process/tools to avoid repeat. Assign owners. | Corrective: Add missed timeout test. Preventive: Update Regression Checklist with timeout scenarios. |
| 5. Validation & Documentation | Confirm effectiveness and record in MIC. | Validate outcomes in next cycle and capture in Lessons Learned Template. | Documented lesson: Timeout scenarios now covered, 80% fewer similar bugs. |
Narrative Guidance
RCA must be approached with a problem-solving mindset, not blame assignment. Lean QA teams cannot afford the cycle of repeating the same issues; RCA ensures systemic gaps are closed quickly.
When to run RCA: Do not trigger RCA for trivial issues. It is designed for failures with material impact—client escalations, production bugs, or repeated regression misses. For smaller issues, a quick retrospective note is sufficient.
How to conduct RCA:
- Always involve multiple perspectives (QA, developer, project manager). Single-person RCA often misses systemic causes.
- Use structured methods like 5 Whys (asking “why” until root cause is revealed) or Fishbone diagrams (categorizing causes into Process, Tools, People, Environment).
- Avoid stopping at surface-level answers such as “human error.” Look for systemic gaps (missing checklist, inadequate automation, unclear acceptance criteria).
Corrective vs. Preventive: Both are mandatory. Fixing the immediate bug (corrective) is insufficient unless preventive measures are put in place to avoid recurrence. Preventive actions may include updating SOPs, improving automation, or adding review steps.
Validation: The real test of RCA is whether similar defects occur again. QA leads must track outcomes in subsequent cycles to confirm that preventive measures worked.
Documentation: Every RCA must end with documentation in MIC using the QA Lessons Learned Template. This ensures insights are available for other teams and become part of organizational learning.
Closing Note & Cross-References
This SOP ensures that QA failures at Memorres are not treated as isolated mistakes but as opportunities for systemic improvement. By following a structured RCA process, lean QA teams can minimize defect recurrence, save effort, and strengthen delivery reliability.
This SOP should be applied alongside:
- Checklist – QA Lessons Learned & Improvement Validation Checklist (to validate improvements derived from RCA).
- Guide – Running QA Retrospectives for Process Improvement (to discuss RCA findings with the team).
- How-To – Implementing Improvements in Ongoing QA Cycles (to embed RCA actions into current projects).
- Framework – QA Continuous Improvement Framework (to align RCA outputs with broader improvement cycles).
Together, these resources ensure that failures are analyzed, lessons are applied, and QA at Memorres continuously improves in a structured and disciplined way.