! 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
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              <= 22
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