urchin. See {munchkin}. [{Jargon File}] URI. {Universal Resource Identifier} URL. {Uniform Resource Locator} URL forwarding. {URL redirection} URL redirection. (Or "URL forwarding") When a {web server} tells the {client} {browser} to obtain a certain requested page from a different location. This is controlled by {directives} in the server's configuration files or a "Location: header output by a {CGI} script. The web server stores all its documents in a {directory tree} rooted at some configured directory, known as its "document root". Normally the {URI} part of the {URL} (the part after the {hostname}) is used as a {relative path} from the document root to the desired file or directory. A redirect directive allows the server administrator to specify exceptions to this general mapping from URL to file name by telling the browser "try this URL instead". The new URL may be on the same server or a different one and may itself be subject to redirection. The user is normally unaware of this process except that it may introduce extra delay while the browser sends the new request and the browser will usually display the new URL rather than the one the user originally requested. (1997-07-15) URN. {Uniform Resource Name} (previously Uniform/Universal Resource Number). URouLette. (After {URL} and roulette, the gambling game) A {World-Wide Web} service which selects other web pages at random. {(http://kuhttp.cc.ukans.edu/cwis/organizations/kucia/uroulette/uroulette.html)}. (1994-11-24) US. {Unit Separator} us. The {country code} for the United States. Usually used only by schools, libraries, and some state and local governments. Other US sites, and many international ones, use the non-national {top-level domains} .com, .edu etc. (1999-01-27) usability. The effectiveness, efficiency, and satisfaction with which users can achieve tasks in a particular environment of a product. High usability means a system is: easy to learn and remember; efficient, visually pleasing and fun to use; and quick to recover from errors. {(http://www.orrnet.com/)}. (1999-04-01)
