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HEDGE. (1) In master production scheduling, a quantity of stock used to protect against uncertainty in demand. The hedge is similar to safety stock, except that a hedge has the dimension of timing as well as amount. (2) In purchasing, any purchase or sale transaction having as its purpose the elimination of the negative aspects of price fluctuations.
HIERARCHICAL BOM. (See PRODUCT STRUCTURE)
HORIZONTAL DISPLAY. A method of displaying output from an MRP system where requirements, scheduled receipts, projected balance, etc., are displayed horizontally, i.e., across the page. Horizontal displays are difficult to use in conjunction with bucketless systems. (See VERTICAL DISPLAY, BUCKETLESS SYSTEM.)
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