material requirements planning

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material requirements planning

  1. 1. MODUL 6 PRAKTIKUM SISTEM PRODUKSI & OTOMASI
  2. 2.  Material Requirements Planning (MRP) is a method that is used for planning, controlling, and managing inventory items of goods (components) which depends on the high items level (level).
  3. 3. To determine the need and schedule for the manufacture of components and subassembly or purchase materials to meet predetermined by the MPS.  Determine the need at the right time  Determine the minimum requirement each item  Determine implementation booking plan  Determine rescheduling or cancellation of an already planned schedule.
  4. 4. Product Structure File Master Production Schedule Inventory Master File Material Requirements Planning Manufacturing Orders Purchase Orders Various Reports
  5. 5.  Planning frame time (in a day,week,month and other)
  6. 6.  Receipt schedule is the number of items that have been purchased, but not fully accepted by the buyer (Purchaser). o The item is still being processed by the supplier, o The item are being delivered to the Purchaser o The item being examined by the admissions department Purchaser
  7. 7.  For the final product, this value is taken from the results of disaggregation, while at the level of item lower, Gross Requirement for each period equal to the item's (parent's) Planned Order Release level that is above multiplied by the number / quantity for each parent (usage ).
  8. 8.  Inventory on hand is the number of items into inventory at the beginning of the period and the expected quantity of inventory at the end of the time period is 0.
  9. 9. Net requirement is that the actual quantity needed to be accepted or produced in a particular period. NR negative value indicates that no production is required in a period ..
  10. 10. Planned order receipt is the number of items to be received or produced at the end of the particular period. Porc value depends on the determination of lot sizing methods are used.
  11. 11. Is the number of items to be received or produced at the end of a particular period of time taking into account the lead time for each component.
  12. 12. Netting • calculation process for determining the amount of net requirements, which amount represents the difference between the gross requirements with inventory Lotting • process to determine the optimal order quantity for each item individually based on the calculation of net requirements that have done Ofsetting • The final step is 'offsetting'. This determines when should start so that the finished items are available when required. Exploding • the process of calculating gross requirements item/component
  13. 13. Lot For Lot Economic Order Quantity Least Unit Cost Fixed Order Quantity
  14. 14.  Economic order quantity is the order quantity that minimizes total inventory holding costs and ordering costs. It is one of the oldest classical production scheduling models
  15. 15.  Lot for lot is a method for lot sizing, where the net requirements occurring for each period are the quantity of order. This method is often used mainly for expensive items and the items whose demand occurs intermittently. In this case the quantity is the same as that of the case in which one period is specified in the fixed period requirements.
  16. 16. approach aims to minimize the cost of unit inventory

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