Combined rules- priority rules-conventional priority rules, Mechanical Engineering

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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*)

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