neljaosaline juhtimismeetod (planeeri, teosta, kontrolli, korrigeeri), mida kasutatakse näiteks kvaliteedijuhtimise ja teeninduskvaliteedi pideval parendamisel ja täiustamisel (tuntakse ka kui Demingi tsükkel ja PDCA)
a four-part (plan, do, check, act, PDCA) management method that preaches continuous improvement
also known as the Deming Wheel, or Deming Cycle, this integrated learning-improvement model was first introduced to Dr. Deming by his mentor, Walter Shewhart of the famous Bell Laboratories in New York
