(economic order quantity, EOC) , .
, D, . U, R . , , (.. ). . . Q.
, , , . (stock cycles), .3.2.
.3.2.
Q, D , . : , , . , ( ).
= RD/Q + HD/2
.3.3.
.3.3.
= RD/Q + HD/2 :
(lead time), .. . , , , , , . .
L. , L . , . D , LD. (reorder level, ROL), .3.4.
.3.4.