THE WHATIS.COM WORD-OF-THE-DAY December 30, 2002 URI ______________ TODAY'S SPONSOR: VeriSign - The Value of Trust
Secure all your Web servers now - with a proven 5-part strategy. The FREE Server Security Guide shows you how to: * DEPLOY THE LATEST ENCRYPTION and authentication techniques * DELIVER TRANSPARENT PROTECTION with the strongest security without disrupting users. And more. Get your FREE Guide now: http://WhatIs.com/r/0,,8705,00.htm?freeguide ______________ TODAY'S WORD: URI See our complete definition with hyperlinks at http://searchwebservices.techtarget.com/sDefinition/0,,sid26_gci214160,00.html To paraphrase the World Wide Web Consortium, Internet space is inhabited by many points of content. A URI (Uniform Resource Identifier; pronounced YEW-AHR-EYE) is the way you identify any of those points of content, whether it be a page of text, a video or sound clip, a still or animated image, or a program. The most common form of URI is the Web page address, which is a particular form or subset of URI called a Uniform Resource Locator (URL). A URI typically describes: - The mechanism used to access the resource - The specific computer that the resource is housed in - The specific name of the resource (a file name) on the computer For example, this URI: http://www.w3.org/Icons/WWW/w3c_main.gif identifies a file that can be accessed using the Web protocol application, Hypertext Transfer Protocol, ("http://";) that is housed on a computer named "www.w3.org" (which can be mapped to a unique Internet address). In the computer's directory structure, the file is located at the pathname of "/Icons/WWW/w3c_main.gif." Character strings that identify File Transfer Protocol FTP addresses and e-mail addresses are also URIs (and, like the HTTP address, are also the specific subset of URI called a URL). Another kind of URI is the Uniform Resource Name (URN). A URN is a form of URI that has "institutional persistence," which means that its exact location may change from time to time, but some agency will be able to find it. The URI rules of syntax, set forth in the Internet Engineering Task Force (IETF) Request for Comments 1630, apply for all Internet addresses. In Tim Berner-Lee's original working document, URI stood for Universal Resource Identifier. RELATED TERMS: URL http://searchnetworking.techtarget.com/sDefinition/0,,sid7_gci213251,00.html Hypertext Transfer Protocol http://searchsystemsmanagement.techtarget.com/sDefinition/0,,sid20_gci214004,00.html File Transfer Protocol http://whatis.techtarget.com/definition/0,,sid9_gci213976,00.html Uniform Resource Name http://searchwebservices.techtarget.com/sDefinition/0,,sid26_gci214164,00.html ______________________ SELECTED LINKS: The World Wide Web Consortium's Introduction to HTML 4.0 includes a good introduction to URIs. http://www.w3.org/TR/REC-html40/intro/intro.html RFC 1630 describes Universal (now Uniform) Resource Identifiers. http://www.w3.org/Addressing/rfc1630.txt Web Architecture: Generic Resources describes some of the thoughts of Tim Berners-Lee about the URI. http://www.w3.org/DesignIssues/Generic.html ______________________ WHATIS.COM POLL | IT Training How many times this year did your company send you for IT training? >> Share your answer in our latest member poll http://whatis.techtarget.com/poll/1,289525,sid9,00.html ______________________________ RECENT ADDITIONS AND UPDATES [1] Online Service System http://searchsap.techtarget.com/sDefinition/0,,sid21_gci871202,00.html [2] CATT http://searchsap.techtarget.com/sDefinition/0,,sid21_gci871110,00.html [3] R/3 Repository http://searchsap.techtarget.com/sDefinition/0,,sid21_gci871109,00.html [4] user exit http://searchsap.techtarget.com/sDefinition/0,,sid21_gci871107,00.html [5] race condition http://searchstorage.techtarget.com/sDefinition/0,,sid5_gci871100,00.html ____________________________________________________________________ ::::::::::::::::::: WHATIS.COM CONTACTS ::::::::::::::::::: LOWELL THING, Site Editor ([EMAIL PROTECTED]) ____________________________________________________________________ MARGARET ROUSE, Associate Editor ([EMAIL PROTECTED]) ___________________________________________________________________ :::::::::::::::::::: ABOUT THIS NEWSLETTER ::::::::::::::::::::: Published by TechTarget (http://www.techtarget.com) TechTarget - The Most Targeted IT Media Copyright 2002, All Rights Reserved. Unsubscribe from 'Word of the Day' - Simply Reply to this Email with REMOVE within the Body or Subject > or - Go to: http://WhatIs.techtarget.com/register - Log in to edit your profile. - Click on the link to Edit email subscriptions. - Uncheck the box next to the newsletter you wish to unsubscribe from. - When finished, click "Save Changes to My Profile."
