Waiver Written authorization to use or release a quantity of material, components, or stores already manufactured but not conforming to the specified requirements.
walkthrough. See: code walkthrough.
WAN. wide area network.
Warrant Warrant is an industry standard document required for all newly tooled or revised products in which the supplier confirms that inspections and tests on production parts show conformance to customer requirements.
Workaround. A sequence of actions the user should take to avoid a problem or system limitation until the computer program is changed. They may include manual procedures used in conjunction with the computer system.
Workflow A system whose elements are activities, related to one another by a trigger relation, and triggered by external events, which represent a business process starting with a commitment and ending with the termination of that commitment.
Worm. An independent program which can travel from computer to computer across network connections replicating itself in each computer. They do not change other programs, but compromise a computer system through their impact on system performance. See: bomb, trojan horse, virus.
X & R CHARTS A control chart which is a representation of process capability over time; displays the variability in the process average and range across time.
XmR Charts Control chart which uses a moving range. Typically two but can have a larger range.
YAFA Yet Another Fine Acronym
YMMV Your Mileage May Vary
YOYO You're On Your Own
YTD Year To Date
ZD Zero Defects
Zero defects Philip Crosby's recommended performance standard that leaves no doubt regarding the goal of total quality. Crosby's theory holds that people can continually move closer to this goal by committing themselves70 to their work and the improvement process.
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