7.5 ECTS. Materialplanering och Styrning. Ladokcode: The exam is given to: 41I29M, A900TI TGIAF15h, TGIAL15h, TGILO15h, International Students

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1 Materialplanering och Styrning 7.5 ECTS Ladokcode: The exam is given to: 41I29M, A900TI TGIAF15h, TGIAL15h, TGILO15h, International Students ExamCode: Date of exam: Time: 14:00 18:00 Means of assistance: Calculator Total amount of point on exam:: 35 Requirements for grading: Ladok 41I29M: SB-scale Pass=14, Grade 4=21 and Grade 5=28 Ladok A900TI: EC-scale Pass/ E=14, D=19, C=23, B=28 and A=32 Additional information: Next re-exam date: See The marking period is, for the most part, 15 working days, otherwise it s the following date: Important! Do not forget to write the ExamCode on each paper you hand in. Good Luck! Examiner:

2 Question 1 (4m) The MRP logic describes a planning loop; explain the activities included and what needs to be considered. Include in the explanation what data in-put is required to run the MRP-loop. Include an illustration or diagram in your explanation, if needed. Fråga 1 (4p) MRP logiken beskriver en planeringsloop; förklara vilka aktiviteter som ingår och vad man tar hänsyn till. Visa även vilka indata som behövs för att man skall kunna köra sin MRP-loop. Använd gärna en bild i din förklaring. Question 2 (5m) What is levelling? Why is this so important for JIT production? How can a level schedule be applied? What effect does levelling have on the JIT excecution and how does this appear in the strategic and tactical levels? Fråga 2 (5p) Vad är utjämning? Varför är utjämning så viktigt för JIT-produktion? Vilka effekter fås I flödet och hur påverkar utjämning den strategiska och den operativa nivån? Question 3 (5m) Capacity planning is often maid in order to decide upon manpower in different stages. In the course CRP has been described. What is it and describe how it works? Fråga 3 (5p) Kapacitetsplanering görs oftast för att kunna bestämma bemanningen i olika skeden. I kursen har CRP blivit beskriven. Vad är det och hur fungerar metoden? Question 4 (5m) Describe how a sales and operations planning process can look like in a small and medium sized enterprise? Fråga 4 (5p) Beskriv hur en sälj- och verksamhetsplanerings process kan se ut i ett litet till medelstort företag? Question 5 / Fråga 5 (6m / 6p)) Explain the following concepts / Beskriv följande koncept a) Kanban b) Production Activity Control c) Vendor scheduling d) Available-to-Promise e) Demand Time Fence f) Bill of Material 1

3 Question 6 (5 marks) The company Customer First AB are using a make to order strategy and product A is their main product. The forecast for product A, the accepted customer orders and the master production schedule is shown below. The company presently has 225 units on hand and a fixed master production schedule quantity of 120 units is used. The company is using a demand time fence of 3 weeks and a planning time fence of 7 weeks. Table 1: Forecast, customer orders and master production schedule of product A Forecast product A Accepted customer orders Master production schedule Week Quantity Week Quantity Week Quantity a) Help the master production scheduler to fill in the master schedule record on the next page, by using the forecast, the customer orders and the planned production of product A. Fill in the available and available to promise, etc. b) The following customer orders arrive to the sales department and they ask you to decide which of the customer orders that can be accepted. Treat the customer orders one by one in the order they arrive, starting with order no 1 and continue with order no 2 and so on. Splitting the orders is not allowed and no backlog should be created. If you accept one order take that in consideration when handling the next order. State clearly which of the below orders can be accepted and motivate your answer with the record created in question a. 1. A new customer order of 45 units in week 1 2. A new customer order of 50 units in week 4 3. A new customer order of 60 units in week 7 4. A new customer order of 110 units in week 9 2

4 Question 7 (5 marks) A company is producing a product A and the product structure is shown in the figure bellow. The master production schedule of product A is given in the tables bellow as well as the information on inventory levels, lot-sizing technique, safety stock policies and schedule receipts. a) Given this information and following the product structure diagram for product A, fill out the MRP records (inventory status files) for item B and C (5m). Product A Item B (1 required) Item C (1 required) Item D (2 required) Item C (2 required) Item E (2 required) Product A Master Production Schedule Week 1 Week 2 Week 3 Week 4 Week 5 Week Schedule Receipts Inventory status Safety stock Safety time Lead time Lot sizing technique Item B Item C Yes in w 1 Yes 250 in w week Fixed order quantity week 1 week L4L 3

5 Page number Question: Exam code:: Week Forecast Orders Available Available to promise MPS 4

6 Page number Question: Exam code: Item:_B week Gross requirements Scheduled receipts Projected available balance Planned order release Item: C week Gross requirements Scheduled receipts Projected available balance Planned order release 5