Root Cause Analysis & Systematic Problem Solving
Analysis Tools
5 Whys, Ishikawa (Fishbone), Pareto, Tree Diagram.
Approach
Treating the source of the problem, not just the symptoms.
Core Outcome
Permanent Solutions and Process Standardization.
Problem-Solving & Analysis Strategies
Clearly defining the problem statement and scope based on factual evidence,
Facilitating cross-functional brainstorming sessions to list all potential causes,
Validating or eliminating theoretical causes through data collection and shop-floor observation,
Implementing Corrective and Preventive Actions (CAPA) to address the root issue,
Monitoring the effectiveness of solutions and standardizing the process upon success.
RCA Lexicon
Root Cause Analysis (RCA), 5 Whys, Ishikawa Diagram, CAPA (Corrective and Preventive Actions), Pareto Analysis, Failure Mode and Effects Analysis (FMEA), Gemba, Evidence-Based Management, Variation Reduction, Countermeasure, Standardization, Fault Tree Analysis (FTA).