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Wagner-Whitin Algorithm: - A mathematically complex, dynamic lot-sizing technique that evaluates all possible ways of ordering to cover net requirements in each period of the planning horizon to arrive at the theoretically optimum ordering strategy for the entire net requirements schedule. Also see: Discrete Order Quantity, Dynamic Lot Sizing

Wall-to-Wall Inventory: - An inventory management technique in which material enters a plant and is processed through the plant into finished goods without ever having entered a formal stock area.

WAN: - See Wide Area Network

Warehouse Management System (WMS): - The systems used in effectively managing warehouse business processes and direct warehouse activities, including receiving, putaway, picking, shipping, and inventory cycle counts. Also includes support of radio-frequency communications, allowing real-time data transfer between the system and warehouse personnel. They also maximize space and minimize material handling by automating putaway processes.

Warehouse: - Storage place for products. Principal warehouse activities include receipt of product, storage, shipment, and order picking.

Warehousing: - The storing (holding) of goods.

Warranty Costs: - Includes materials, labor, and problem diagnosis for products returned for repair or refurbishment.

Waste: - 1) In Lean and Just-in-Time, any activity that does not add value to the good or service in the eyes of the consumer. 2) A by-product of a process or task with unique characteristics requiring special management control. Waste production can usually be planned and controlled. Scrap is typically not planned and may result from the same production run as waste.

Waterway use tax: - A per-gallon tax assessed barge carriers for use of the waterways.

Wave Picking: - A method of selecting and sequencing picking lists to minimize the waiting time of the delivered material. Shipping orders may be picked in waves combined by a common product, common carrier or destination, and manufacturing orders in waves related to work centers.

Waybill: - Document containing description of goods that are part of common carrier freight shipment. Show origin, destination, consignee/consignor, and amount charged. Copies travel with goods and are retained by originating/delivering agents. Used by carrier for internal record and control, especially during transit. Not a transportation contract.

Web Browser: - A client application that fetches and displays web pages and other World Wide Web resources to the user.

Web Services: - A computer term for information processing services that are delivered by third parties using internet portals. Standardized technology communications protocols

Web Site: - A location on the Internet.

Web: - A computer term used to describe the global Internet. Synonym: World Wide Web

Weight break: - The shipment volume at which the LTL charges equal the TL charges at the minimum weight.

Weight Confirmation: - The practice of confirming or validating receipts or shipments based on the weight.

Weight-losing raw material: - A raw material that loses weight in processing

Weighted-Point Plan: - A supplier selection and rating approach that uses the input gathered in the categorical plan approach and assigns weights to each evaluation category. A weighted sum for each supplier is obtained and a comparison made. The weights used should sum to 100% for all categories. Also see: Categorical Plan

What You See Is What You Get (WYSIWYG): - An editing interface in which a file created is displayed as it will appear to an end-user.

Wholesaler: - See Distributor

Wide Area Network (WAN): - A public or private data communications system for linking computers distributed over a large geographic area.

Will Call: - The practice of taking orders that will be picked up at the selling facility by the buyer. An area where buyers can pick up an order at the selling facility. This practice is widely used in the service parts business.

Windows Meta File (WMF): - A vector graphics format for Windows-compatible computers used mostly or word processing clip art.

WIP: - See Work in Process

WMF: - See Windows Meta File

WMS: - See Warehouse Management System

Work-in-Process (WIP): - Parts and subassemblies in the process of becoming completed finished goods. Work in process generally includes all of the material, labor and overhead charged against a production order which has not been absorbed back into inventory through receipt of completed products.

World Wide Web (WWW): - A "multimedia hyper linked database that spans the globe" and lets you browse through lots of interesting information. Unlike earlier Internet services, the 'Web' combines text, pictures, sounds, and even animations, and it lets you move around with a click of your computer mouse.

WWW: - See World Wide Web

WYSIWYG: - See What You See Is What You Get