Let: rj = regular production quantity for period j, oj =overtime production quantity in period j, ij = inventory quantity in period j, and dj = demand quantity in period j. Correct formulation of the demand constraint for a multiperiod scheduling problem is:
A) rj + oj + i2 - i1 ≥ dj
B) rj + oj + i1 - i2 ≥ dj
C) rj + oj + i1 - i2 ≤ dj
D) rj - oj - i1 + i2 ≥ dj

Question

Quizplus · Accepted Answer

The demand constraint ensures that the total production in a period (regular production plus overtime production) plus the inventory at the beginning of the period minus the inventory at the end of the period is greater than or equal to the demand in that period.

Let: Rj = Regular Production Quantity for Period J, Oj