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Article Index
.2 - PERT
.3 - (CCPM)
All Pages

, . PERT .

, . . , ? , - . - ( ) , . . .
, . - . - ( ).

, , , . (. 1).

. . , -.

  • () , . , .
  • - ( )
  • - - - - ( , )
  • () - . , 95% . ( ) , , .
  • , , . - . . , . : , .

. . . , ( - ). . . . ?

. . ? , ? . . , 50% . . .


- PERT CCPM

PERT

PERT . 50- . , ( 100), . , .

, PERT :
  • (ET) = ( + 4 * - + ) / 6
  • (SD) = ( ) / 6

, SD .

:

  • ETP .
  • SDP (.. SD, SD2 . ).<
  • 95% , - ETP + 2 * SDP ( ).

: ETP , 3. ( ), - , . .

, . PERT . , . . . .

, , PERT -. , float time.

? - . - - , .. - - .


(CCPM)

. , . -, , , , . , ! .

, . , . ( , ) , -, . ( , - ). : , ! ? , PERT, .

, . , .

CCPM :

  • , ( , 50% ).
  • , a . , - , .
  • , ( ).
  • , . , . : , . , .

, . , .

CCPM. . - .

, . . ? - . .. , ?. 20% ( ), 50%, . 40% 10% , . - : , , . , , , - .

CCPM 30 ., . CCPM . Boeing, Lockhed Martin, Seagate, Harris Semiconductor, Lucent Technologies, NASA, USAF. F22. 2 - F14 Tomcat, , 10 . , - - , 2,3 , Toyota 1 ! , Toyota.