combined

Question

Combined Rules         

MOD (modified operation due date)                                 PN_j = max (t + o_j, t_dj)

(SPT-Tr) (Truncated SPT)                                            PN_j = max (o_j + r, t_sj / n_j*)

Here r is free parameters that influence the weight of the SPT component associate to the Slack component.

SL + SPT (max of slack and operation time) PN_j = max (o_j, t_sj / w_j*)

 CR + SPT (dynamic version of MOD rule) PN_j = max (t + o_j, t + o_j. (t_dj*- t)/w_j*)