!Keywords: Construction Industry / Forecasting / Pert Evaluation & Review Technique / Product Management / Production / Steel Industry / Uncertainty;
Minimize   I - A
st
B - A >=  3          ! DIG
C - B >=  4          ! FOUND
E - C >=  2          !    .
D - C >=  3          !    .
E - C >=  5          !    .
F - D >=  4
G - E >=  3
H - F >=  6
H - G >=  7
I - H >=  5
I - E >=  2
 END