Statements (14)
| Predicate | Object | 
|---|---|
| gptkbp:instanceOf | gptkb:problem-solving_technique | 
| gptkbp:appliesTo | gptkb:Six_Sigma lean manufacturing | 
| gptkbp:category | quality management continuous improvement | 
| gptkbp:firstDescribed | 1930s | 
| gptkbp:method | ask 'why?' five times | 
| gptkbp:originatedIn | gptkb:Sakichi_Toyoda | 
| gptkbp:purpose | identify root cause of problems | 
| gptkbp:usedBy | gptkb:Toyota_Production_System | 
| gptkbp:usedIn | root cause analysis | 
| gptkbp:bfsParent | gptkb:Toyota_Production_System | 
| gptkbp:bfsLayer | 7 | 
| https://www.w3.org/2000/01/rdf-schema#label | 5 Whys |