Determine The Root Cause: 5 Whys - iSixSigma Why should you ask why? The 5 Whys are a great way to get to the bottom of a problem without outside analysis or hypotheses in place
Root Cause Analysis: Integrating Ishikawa Diagrams and the 5 Whys Root cause analysis (RCA) is a way of identifying the underlying source of a process or product failure As such, then the right solution can be identified RCA can progress more quickly and effectively by pairing an Ishikawa diagram You can also use the scientific method in the form of the well-known plan-do-check-act (PDCA) cycle to empirically investigate the failure Often, failure
The Fundamentals of Cause-and-effect (aka Fishbone) Diagrams A popular means for identifying the causes of a particular problem, or effect, is the aptly named cause-and-effect diagram As the completed graphic resembles the bones of a fish, it is also commonly referred to as a fishbone diagram