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5 Whys

  It typically refers to the practice of asking 5 times why a failure has occurred in order to get to the root cause of any problem. Of course, a problem can have more one cause. Generally, root cause analysis is carried out by a team of people who are related to the problem. No special technique is required.

5 Ss

 

Five terms beginning with "S" are used to create a workplace suited for visual control and Lean production.

  * Sort (Seiri) -Eliminate everything that is not required for the current process and keep only the bare essentials.
  * Shine (Seiso) -Clean everything, and find ways to keep everything clean. Make cleaning a part of everyday work habits.
  * Straighten (Seiton)-Clean everything, and find ways to keep everything clean. Make cleaning a part of everyday work habits.
  * Standardize (Seiketsu)-Create rules by which the first three S's are maintained.
  * Sustain (Shitsuke)-Keep 5S activities from unraveling