Module 1 Detailed Planning Flashcards
The classification of a group of items in decreasing order of annual dollar volume (price multiplied by projected volume) or other criteria. This array is then split into three classes, called A, B, and C. The A group usually represents 10 percent to 20 percent by number of items and 50 percent to 70 percent by projected dollar volume. The next grouping, B, usually represents about 20 percent of the items and about 20 percent of the dollar volume. The C class contains 60 percent to 70 percent of the items and represents about 10 percent to 30 percent of the dollar volume. The ABC principle states that effort and money can be saved through applying looser controls to the low-dollar-volume class items than to the high-dollar-volume class items. The ABC principle is applicable to inventories, purchasing, and sales.
ABC classification
Additional inventory above basic pipeline stock to cover projected trends of increasing sales, planned sales promotion programs, seasonal fluctuations, plant shutdowns, and vacations.
anticipation inventories
The number of hours a work center can be used, based on management decisions regarding shift structure, extra shifts, regular overtime, observance of weekends and public holidays, shutdowns, and the like.
available time
One-half the average lot size plus the safety stock, when demand and lot sizes are expected to be relatively uniform over time. The average can be calculated as an average of several inventory observations taken over several historical time periods; for example, 12-month ending inventories may be averaged. When demand and lot sizes are not uniform, the stock level versus time can be graphed to determine the average.
average inventory
A technique for calculating operation start dates and due dates. The schedule is computed starting with the due date for the order and working backward to determine the required start date and/or due dates for each operation.
back scheduling
A method of inventory bookkeeping where the book (computer) inventory of components is automatically reduced by the computer after completion of activity on the component’s upper-level parent item based on what should have been used as specified on the bill of material and allocation records. This approach has the disadvantage of a built-in differential between the book record and what is physically in stock.
backflush
A financial statement showing the resources owned, the debts owed, and the owner’s share of a company at a given point in time.
balance sheet
1)The capability of a system to perform its expected function. 2) The capability of a worker, machine, work center, plant, or organization to produce output per time period. The amount required represents the system capability needed to make a given product mix (assuming technology, product specification, etc.). As a planning function, both the amount available and the amount required can be measured in the short term (requirements plan), intermediate term (rough-cut plan), and longterm (resource requirements plan). Control is the execution through the I/O control report of the short-term plan. This can be classified as budgeted, dedicated, demonstrated, productive, protective, rated, safety, standing, or theoretical. 3) Required mental ability to enter into a contract.
capacity
The capability of a system or resource to produce a quantity of output in a particular time period.
capacity available
The function of establishing, measuring, monitoring, and adjusting limits or levels of capacity in order to execute all manufacturing schedules (i.e., the production plan, master production schedule, material requirements plan, and dispatch list). This is executed at four levels: resource requirements planning, rough-cut planning, requirements planning, and input/output control.
capacity management
The process of determining the amount of capacity required to produce in the future. This process may be performed at an aggregate or product-line level, at the master-scheduling level, and at the material requirements planning level.
capacity planning
The capacity of a system or resource needed to produce a desired output in a particular time period.
capacity required
The function of establishing, measuring, and adjusting limits or levels of capacity. In this context, the term refers to the process of determining in detail the amount of labor and machine resources required to accomplish the tasks of production. Open shop orders and planned orders in the MRP system are input to this, which through the use of parts routings and time standards translates these orders into hours of work by work center by time period. Even though rough-cut capacity planning may indicate that sufficient capacity exists to execute the MPS, this may show that capacity is insufficient during specific time periods.
capacity requirements planning (CRP)
The cost of holding inventory, usually defined as a percentage of the dollar value of inventory per unit of time (generally one year). This depends mainly on the cost of capital invested as well as costs of maintaining the inventory such as taxes and insurance, obsolescence, spoilage, and space occupied. Such costs vary from 10 percent to 35 percent annually, depending on type of industry. This is ultimately a policy variable reflecting the opportunity cost of alternative uses for funds invested in inventory.
carrying cost
The net flow of dollars into or out of the proposed project. The algebraic sum, in any time period, of all cash receipts, expenses, and investments. Also called cash proceeds or cash generated.
cash flow
A status awarded to a supplier that consistently meets predetermined quality, cost, delivery, financial, and count objectives. Incoming inspection may not be required.
certified supplier
1)A shipment that is handled by a common carrier. 2)The process of a supplier placing goods at a customer location without receiving payment until after the goods are used or sold.
consignment
A process by which a supplier is notified daily of actual sales or warehouse shipments and commits to replenishing these sales (for example, by size or color) without stockouts and without receiving replenishment orders. The result is a lowering of associated costs and an improvement in inventory turnover.
continuous replenishment
An accounting classification useful for determining the amount of direct materials, direct labor, and allocated overhead associated with the products sold during a given period of time.
cost of goods sold (COGS)
An inventory accuracy audit technique where inventory is counted on a cyclic schedule rather than once a year. A count is usually taken on a regular, defined basis (often more frequently for high-value or fast-moving items and less frequently for low-value or slow-moving items). Most effective systems require the counting of a certain number of items every workday with each item counted at a prescribed frequency. The key purpose of this process is to identify items in error, thus triggering research, identification, and elimination of the cause of the errors.
cycle counting
One of the two main conceptual components of any item inventory, this is the most active component. This depletes gradually as customer orders are received and is replenished cyclically when supplier orders are received. The other conceptual component of the item inventory is the safety stock, which is a cushion of protection against uncertainty in the demand or in the replenishment lead time.
cycle stock
1)Inventory-on-hand metric converted from units to how long the units will last. For example, if there are 2,000units on hand and the company is using 200 per day, then there are 10 days of supply. 2) A financial measure of the value of all inventory in the supply chain divided by the average daily cost of goods sold rate.
days of supply
An amount of inventory maintained between entities in a manufacturing or distribution network to create independence between processes or entities. The objective of decoupling inventory is to disconnect the rate of use from the rate of supply of the item.
decoupling inventory
Proven capacity calculated from actual performance data, usually expressed as the average number of items produced multiplied by the standard hours per item.
demonstrated capacity