PDCA（「Plan」計画、 「Do」実行、「Check」評価、「Act」改善) 國際通用
PDSA是Deming博士改的 S為 Study
CHECKUP：健康診断; （仔細）調査. The act of examining carefully:
在PDCA中之CHECK 類似 REVIEW
Tokyo Electric Power Co. announced Tuesday nuclear-related problems in which control rods at nuclear reactors slipped during routine checkups in its Fukushima No. 2 nuclear power plant's No. 3 reactor in Fukushima Prefecture and its Kashiwazaki-Kariwa nuclear power plant's No. 1 reactor in Niigata Prefecture.
Keith Orr thought he would surprise his doctor when he came for a checkup.