Root Cause Analysis

Root Cause Analysis in CX Practice

Classic RCA Methods

5-Whys A simple, verbal method. Ask repeatedly: What is the problem? Why? Why? Until you reach the root. Well-suited for well-defined problems with clear causal chains.

Fishbone Diagram (Ishikawa) A visual tool that categorizes possible causes of a problem into six "fishbones": People, Process, Product, Technology, Environment, and Communication. Good for complex, multifactorial problems.

Pareto Analysis Identifies the 20% of causes that create 80% of the problems. Ideal for prioritizing which root causes provide the greatest ROI to resolve.

RCA Workflow for VoC Data

1. Identification: Which themes are overrepresented in negative feedback?
2. Quantification: What is the frequency and NPS/CSAT impact for each theme?
3. Deep analysis: Conduct interviews or focus groups with representative Detractors
4. Root cause identification: Use 5-Whys or Fishbone to map the causal chain
5. Prioritization: Assess impact × ease of resolution
6. Action: Assign ownership, deadline, and success criteria
7. Impact measurement: Measure NPS/CSAT change after implementation

RCA and Organisational Learning

RCA is most valuable when it not only solves the problem but documents the learning and adjusts processes to prevent recurrence. Build RCA findings into process guides and onboarding materials.

The most important discipline in RCA is resisting the temptation to stop at the first "because." The first answer is almost always a symptom. It is only at the third or fourth "why" that the real cause emerges.