Ko gre kaj narobe, še posebej v veliki organizaciji, ne more biti instinkt, da kaže s prsti in premik krivde. To verjetno ni najboljši način za preprečevanje težav, ki nastane v prihodnosti, čeprav. Sakichi Toyoda, ustanovitelj družbe Toyota Motor Company, razvil "5 Whys" proces, ki je vrsta analize temeljnih vzrokov, za prepoznavanje in odpravljanje težav, ki so nastale v družbi. Ugotovljeno je bilo, ker na široko sprejeta kot del vitke proizvodnje, Kaizen in metodologijo Six Sigma.
Root Cause Analysis - 5 whys - Five Whys - Genchi Genbutsu philosophy
Snemalna Knjiga Besedilo
Zdrs: 1
Gary has noticed the widgets coming through his station are defective.
Zdrs: 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.
Zdrs: 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.
Zdrs: 4
The team uses Storyboard That to map out a new protocol for widget puncher maintenance that is easy to understand and follow.
Zdrs: 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.
Zdrs: 6
There are no more defective widgets! The manufacturing process has been improved, and everyone is ready to get back to making the product.