Glossary of RFID Terms

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W

Warehouse Management System: A key component of the supply chain, intended to control the movement and storage of materials within a warehouse and process the associated transactions, including shipping, receiving, putaway and picking. Such systems also direct and optimize stock putaway based on real-time information about the status of bin utilization. WMSs utilize auto-ID data-capture technology, such as bar-code scanners, mobile computers, wireless LANs and RFID, to efficiently monitor the flow of products.
Wi-Fi: The generic wireless interface of mobile computing devices, such as laptops used in local area networks (LANs). The term "Wi-Fi" (a play on the term "Hi-Fi") is thought to be an abbreviation for "wireless fidelity." Common uses include Internet and voice-over-IP phone access, gaming and network connectivity for such consumer electronics as televisions, DVD players and digital cameras. In spite of media reports about possible health risks from Wi-Fi, scientific studies have failed to show a causal effect.
WIP Tracking: See Work-in-process tracking.
Wireless Markup Language: WML is a markup language that is based on XML (eXtensible Markup Language). The official WML specification is developed and maintained by the WAP Forum, an industry-wide consortium founded by Nokia, Phone.com, Motorola, and Ericsson. This specification defines the syntax, variables, and elements used in a valid WML file.
WML: See Wireless Markup Language
Work-in-process Tracking: Manufacturers often have to add parts to subassemblies or perform a series of processes on goods being manufactured. Using RFID to track work-in-process reduces manual data collection and can help ensure that the right processes are preformed at the proper time on the correct product.
WORM: See write once, read many
Write once, read many: A tag that can be written to only once by the user. Thereafter, the tag can only be read.
Write range: The distance from which data can be written to an RFID tag.
Write rate: The rate at which information is transferred to a tag, written into the tag's memory and verified as being correct.