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DRX

Web Developer Resource Index: URI

The Uniform Resource Identifier is the fundamental and most important element in the design of the WWW. It is an address that uniquely identifies any resource in the global information space. Examples include the ubiquitous HTML document, an image, or some other media source such as a music file.

The URI to this page is made up of three basic parts:

More complicated URIs may include query string or GET variables, which begin with a question mark (?) character after the path, followed by name=value pairs separated by ampersands (&). Since ampersands have significance both in the content of your pages and especially in the href attribute of your anchor (link) elements, you must encode them as an entity reference like so: &.

Sometimes called in-page links, fragment identifiers are also located at the end of a URI, with a hash or pound (#) character followed by a unique id value. The Navigation options on this page use fragment identifier links to move you to specific locations within this or possibly other documents.

Updated: Wednesday, October 29th, 2008 @ 1:53 AM EDT

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Resources

• 1.Uniform Resource Identifier: Generic Syntax

  This specification defines the generic URI syntax and a process for resolving URI references that might be in relative form, along with guidelines and security considerations for the use of URIs on the Internet. [193]

  ★★★★☆
  URI:http://gbiv.com/protocols/uri/rfc/rfc3986.html
  Author:
  Tim Berners-Lee
  [5]
  Reviewed:Monday, April 11th, 2005 @ 6:49 PM EDT
  by:
  Douglas Clifton
  
  Uniform Resource Identifier: Generic Syntax securityuriw3c
   

• 2.Well Designed URLs are Beautiful!

  Another article on designing your site, and the URLs used to navigate it. Well thought out, with many good points that I seemed to have instinctively adhered to here (and few people do): point number six: Well Designed URLs are Readable and Heirarchical. [1654]

  ★★★★☆
  URI:http://mikeschinkel.com/blog/WellDesignedURLsAreBeautiful.aspx
  Author:
  Mike Schinkel
  [1]
  Reviewed:Monday, February 27th, 2006 @ 6:24 PM EST
  by:
  Douglas Clifton
  
  Well Designed URLs are Beautiful! architecturedesignuriurlweb
   

• 3.Designing URIs

  Although you may have never thought of it as "design" (I do), it is important to carefully think about site structure and how URIs to different resources are related. Failure to do so can come back and haunt you. I speak from experience. [1249]

  ★★★★☆
  URI:http://allinthehead.com/retro/245/designing-uris
  Author:
  Drew McLellan
  [1]
  Reviewed:Saturday, May 28th, 2005 @ 6:50 PM EDT
  by:
  Douglas Clifton
  
  Designing URIs uri
   

• 4.Official IANA Registry of URI Schemes

  In the Uniform Resource Identifier (URI) definition [RFC3986, RFC1738] there is a field, called "scheme", to identify the type of resource and access method (protocol). [201]

  ★★★★☆
  URI:http://www.iana.org/assignments/uri-schemes
  Author:
  IANA
  [1]
  Reviewed:Monday, April 11th, 2005 @ 6:31 PM EDT
  by:
  Douglas Clifton
  
  Official IANA Registry of URI Schemes protocoluri
   

• 5.URIs, URLs, and URNs: Clarifications and Recommendations

  This paper addresses and attempts to clarify two issues pertaining to URIs, and presents recommendations. Section 1 addresses how URI space is partitioned and the relationship between URIs, URLs, and URNs. [198]

  ★★★★☆
  URI:http://www.w3.org/TR/uri-clarification/
  Author:
  URI Planning Interest Group
  [1]
  Reviewed:Monday, April 11th, 2005 @ 4:35 PM EDT
  by:
  Douglas Clifton
  
  URIs, URLs, and URNs: Clarifications and Recommendations uriurlurnw3c
   

• 6.Naming and Addressing

  This is an overview of W3C materials related to Addressing. The URI Activity Statement explains W3C's work on this topic in more detail. [197]

  ★★★★☆
  URI:http://www.w3.org/Addressing/
  Author:
  Dan Connolly
  [3]
  Reviewed:Monday, April 11th, 2005 @ 3:50 PM EDT
  by:
  Douglas Clifton
  
  Naming and Addressing protocoluriw3c
   

• 7.IETF: Uniform Resource Identifiers Working Group

  Links, mailing lists and discussions regarding URI syntax, new URI scheme proposals and the process for URI scheme registration. [196]

  ★★★★☆
  URI:http://gbiv.com/protocols/uri/
  Author:
  Roy Fielding
  [2]
  Reviewed:Monday, April 11th, 2005 @ 3:45 PM EDT
  by:
  Douglas Clifton
  
  IETF: Uniform Resource Identifiers Working Group protocoluri
   

• 8.Uniform Resource Identifier (URI) Activity Statement

  The WWW is the universal space containing all Internet resources referenced by Uniform Resource Identifier. The Web is dominated today by relatively few technologies, including the Hypertext Transfer Protocol and the Hypertext Markup Language. [195]

  ★★★★☆
  URI:http://www.w3.org/Addressing/Activity
  Author:
  Dan Connolly
  [3]
  Reviewed:Monday, April 11th, 2005 @ 3:41 PM EDT
  by:
  Douglas Clifton
  
  Uniform Resource Identifier (URI) Activity Statement htmlhttpuriw3c
   

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architecture design html http protocol security uri url urn w3c web

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Last updated: Wednesday, October 29th, 2008 @ 1:53 AM EDT [2008-10-29T05:53:45Z]