.M(事後保養,Break-down Maintenance) --- 1950s
PVM(預防保養,Preventive Maintenance) --- 1960s
P.M(生產保養,Productive Maintenance) --- 1970s
C.M(改良保養,Corrective Maintenance)
M.P(保養預防,Maintenance Prevention)
TPM(全員生產保養,Total Productive Maintenance) --- 1980s
PdM(預知保養,Predictive Maintenance) --- 1980s
TPM(全面生產經營系統,Total Productive Management