Question: 3. Material Requirement planning /20 points]: In an assembly system, components W, X, Y and Z need 1, 2, 2 and 1 units of part

3. Material Requirement planning /20 points]: In
3. Material Requirement planning /20 points]: In an assembly system, components W, X, Y and Z need 1, 2, 2 and 1 units of part B, respectively. The bill of materials (BOM or POR) of these components are given in the table below, in which the beginning inventory of part B is given in the parenthesis (i.e., 200 units of part B). The vendor operates under a variable lot-sizing policy of 1000 units of part B with a 2-day lead time. Determine the plan orders release for part B if the bill of materials (BOM) for the components are given in the table for a 12-period (in days) planning horizon (Complete the 2nd table to answer the question). Number of Component Periodic BOM: Planned Order Release (POR) Part B needed 3 5 9 10 W X 125 Y 2 40 600 600 300 Z 160 650 400 200 B (200) ? 1 2 4 11 12 7 125 1 2 8 50 50 80 80 375 500 400 100 300 - 6 200 200 150 100 ? - - 1 - 400 ? ? ? ? ? ? ? ? Part B Time Period, t Type: V- 1 2 Lof size: 5 Leadtime, L: 7 Present period 10 11 12 3 4 6 Gross requirements (GR) Beginning Inventory (BI Net requirements (NR) Planned Order Release (POR)

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