fishbone diagrams

Root Cause Analysis, Ishikawa Diagrams and the 5 Whys

Root cause analysis (RCA) is a way of identifying the underlying source of a process or product failure so that the right solution can be identified. RCA can progress more quickly and effectively by pairing an Ishikawa diagram with the scientific method in the form of the well-known plan-do-check-act (PDCA) cycle to empirically investigate the…