URI Opacity Revisited

Posted in Web by AST on Monday, April 28th, 2008

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Lipstick on a pigThe question regarding “meaningful” or “human friendly” URIs comes up a lot if you’re trying to design a Website or Web-accessible information architecture (including a Web service). This subject came up again recently on the SOA mailing list (I didn’t see the beginning of the thread, but this is where I started paying attention).

There are some key points about URIs and opacity that anyone who’s really going to the trouble to design them should keep in mind (originally presented by Dan Connolly at a W3C event back in 2001):


  • …make URIs mnemonic when it’s convenient


  • …depend on finding metadata in URIs
  • …depend on search engine heuristics regarding query parameters
  • …depend on file extensions
  • …depend on URIs for user interface

Basically, don’t peek inside the URI. Read the rest of this entry »


Posted in About the Site by AST on Monday, April 28th, 2008