Materials Requirement Planning Flashcards
Demand for components derived from the plan for production of finished goods.
dependent demand
The activity that determines the plans for purchasing and production of dependent-demand components.
material requirements planning (MRP)
The anticipated build schedule stating which end items are to be produced, when, and in what quantities for the next 12 weeks or so.
master production schedule (MPS)
The sum of the lead times that sequential phases of a process require, from ordering components to completion of final assembly.
cumulative lead time
A listing of all of the components (raw materials, parts, and subassemblies) needed to produce one unit of a product.
bill of materials (BOM)
A hierarchical diagram of the components needed to assemble a product.
product structure tree
Also called a pseudo bill or a kit, is a combination of several BOMs.
planning bill
A type of planning bill that is arranged in product modules or options.
modular bill
Also called a transient bill, is for an item that is usually not kept in inventory.
phantom bill
The demand for an item during a time period.
gross requirement
Open order scheduled to arrive from a vendor or shop floor.
scheduled receipt
Expected amount of inventory that will be on hand at the beginning of a time period.
projected on-hand
The actual amount needed in a time period.
net requirement
Quantity planned to be received in the beginning of a period.
planned-order receipt
Quantity planned to be released (i.e., ordered) in the beginning of a period; that is, planned-order receipt offset by the lead time.
planned-order release
Identifying the immediate parent items that have generated a given set of requirements for an item.
pegging
Recomputes all the MRP quantities periodically.
regenerative MRP
Immediately updates only MRP tables affected by a change.
net-change MRP
Exploding an end item’s BOM to determine the quantities of the components that must have been used to make the item.
backflushing
Authorization for the execution of week 1 planned-order releases.
immediate order releases
Evaluation of system operation, including deviations from plans and cost information.
performance-control reports
Data useful for forecasting future component requirements.
demand history reports
Choosing a lot size for a purchase or production order.
lot sizing
The process of determining and adjusting detailed capacity requirements of MRP.
capacity requirements planning