Definitions beginning with U

An individual (or application program) identity that has been authenticated. A user can have a set of roles associated with that identity, which entitles the user to access all resources protected by those roles.
Sun Microsystems - Cite This Source - This Definition
Browse Related Terms: Access Control, anonymous access, Authorization, authorization constraint, deadlock, property

an instance of an Internet user accessing your web site for a length of time, then leaving. During a user session any number of pages may be accessed. A user session is considered finished once an arbitrarily chosen period of inactivity - typically 30 minutes - is exceeded.
SEO Glossary.com - Cite This Source - This Definition
Browse Related Terms: Frequency, Session, Unique visitors, Visit

A table in the input-output (I-O) accounts that shows the consumption of commodities by industries, as well as the commodity composition of gross domestic product (GDP) and the industry distribution of value added. It shows the value, in producers' prices, of each commodity used by each industry or by each final use. It also shows detail on the components of value added and total intermediate inputs that are used by each industry to produce its output. The entry in each row shows the commodity that is used by the industry or final user in the column. Related terms: Direct requirements table, Make table, Total requirements table.
Bureau of Economic Analysis - Cite This Source - This Definition
Browse Related Terms: Capital flows table, Commodity flow method, Direct requirements table, Input-output (I-O) accounts, Leontief inversion approach, Make table, Top-down model, Total requirements table, Total requirements tables, Use tables

United States European Command, Stuttgart- Vaihingen , Germany.
DoD Missile Defense Agency - Cite This Source - This Definition
Browse Related Terms: CFC, EUCOM, USFK/CFC

The economic benefit associated with the physical use of a resource, usually measured by the consumer surplus or net economic value associated with such use. The contingent value method is one technique used to estimate use value.
Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: Accuracy, correlation, Extrapolation, median, Nominal dollars, Psychological value., Recreational benefit, steady-state condition

(Abbrev. USGS)- The Federal Agency chartered in 1879 by congress to classify public lands, and to examine the geologic structure, mineral resources, and products of the national domain. As part of its mission, the USGS provides information and data on the NationÂs rivers and streams that are useful for mitigation of hazards associated with floods and droughts.
NOAA National Weather Service - Cite This Source - This Definition
Browse Related Terms: Drought, Excessive Heat Outlook, Experimental Product, Operational Products, PRVD, Short Term Forecast, SHRT

The USGS serves the Nation by providing reliable scientific information to describe and understand the earth; minimize loss of life and property from natural disasters; manage water, biological, energy, and mineral resources; and enhance and protect our quality of life. The agency that monitors streamflows, river hydrology, and seismic activity.
Bureau of Reclamation - Cite This Source - This Definition
Browse Related Terms: BLM, Bureau of Land Management (BLM), Environmental analysis, National Oceanic and Atmospheric Administration (NOAA), Project Hazardous Waste Coordinator (PHWC), Recreation, Regional Hazardous Waste Management Coordinator (HWMC), Soil conservation, U.S. Geological Survey (USGS), Wilderness resource

A group of recipients that are created to expedite the mass e-mailing of messages and other information. Unlike a mail-enabled universal distribution group, a mail-enabled USG can also be used to assign permissions. When e-mail is sent to a mail-enabled USG, all members of that group receive a copy of the message. [Exchange 2007]
Microsoft - Cite This Source - This Definition
Browse Related Terms: accepted domain, Active Directory contact, bridgehead server, distribution group, dynamic distribution group, mail contact, mail-enabled universal distribution group, mail user, recipient

A document that explains how the application works, usually written by the application designer. Specifically, it provides users with instructions on using various forms, views, and navigators in the application.
IBM - Cite This Source - This Definition
Browse Related Terms: Bookmark, Component, composite application, Default View, export, hierarchical view, Link, navigator, private view, response document, shared view, Thread