! Keywords: Crashing / Forecasting / Product Management / Production / Project Evaluation & Review Technique / Scheduling / Uncertainty / Steel Industry / Construction Industry;
MIN  5 C1 + 6 C2 + 4 C3 + 2 C4 + 3 C5 + 9 C6 - 5 PCRASH
SUBJECT TO
 2)        C1 + EF1       >=   9
 3)        C2 + EF2       >=   7
 4)        C3 - EF1 + EF3 >=   5
 5)        C4 - EF1 + EF4 >=   8
 6)        C4 - EF2 + EF4 >=   8
 7)        C5 - EF3 + EF5 >=   6
 8)        C6 - EF4 + EF6 >=   9
 9)        C6 - EF5 + EF6 >=   9
10)        EF6 + PCRASH   =   29
END
SUB        C1        4.00000
SUB        C2        4.00000
SUB        C3        2.00000
SUB        C4        4.00000
SUB        C5        3.00000
SUB        C6        4.00000