Когда что-то идет не так, особенно в большой организации, может возникнуть инстинкт, чтобы указать пальцы и сместить вину. Вероятно, это не лучший способ предотвратить возникновение проблемы в будущем. Sakichi Toyoda, основатель Toyota Motor Company, разработал «5 Whys» процесс, тип анализа первопричин, для выявления и устранения проблем, возникших внутри компании. С тех пор он был широко принят как часть бережливого производства, Kaizen и методологии Six Sigma.
Root Cause Analysis - 5 whys - Five Whys - Genchi Genbutsu philosophy
Текст Раскадровки
Горка: 1
Gary has noticed the widgets coming through his station are defective.
Горка: 2
Gary reports the problem to his boss, and they decide to perform a quick 5 Whys analysis, along with a couple of Gary's co-workers.
Горка: 3
Widgeter Mk. II
The team articulates the problem and builds a linked chain of causation back to the root cause: the secondary widget punchers aren't being cleaned enough.
Горка: 4
The team uses Storyboard That to map out a new protocol for widget puncher maintenance that is easy to understand and follow.
Горка: 5
Gary's boss uses the storyboard as part of her report to upper management, reassuring them that the source of the defects has been eliminated.
Горка: 6
There are no more defective widgets! The manufacturing process has been improved, and everyone is ready to get back to making the product.