The problem with trees Many systems are organized hierarchically. The CERNDOC documentation system is an example, as is the Unix file system, and the VMS/HELP system. A tree has the practical advantage of giving every node a unique name. However, it does not allow the system to model the real world. For example, in a hierarchical HELP system such as VMS/HELP, one often gets to a lead on a tree such as: HELP COMPILER SOURCE_FORMAT PRAGMAS DEFAULTS only to find a reference to another leaf: Please see HELP COMPILER COMMAND OPTIONS DEFAULTS PRAGMAS and it is necessary to leave the system and re-enter it. What was needed was a link from one node to another, because in this case the information was not naturally organized into a tree. Tim Berners-Lee, Seeing With Fresh Eyes A City Is Not a Tree hierarchywww
Cool URIs don't change An Essay by Tim Berners-Lee www.w3.org What makes a cool URI? A cool URI is one which does not change. What sorts of URI change? URIs don't change: people change them. The User Interface of URLs www
Web History Chapter 6: Web Design A Chapter by Jay Hoffmann css-tricks.com After the first websites demonstrate the commercial and aesthetic potential of the web, the media industry floods the web with a surge of new content. Amateur webzines — which define and voice and tone unique to the web — are soon joined by traditional publishers. By the mid to late 90’s, most major companies will have a website, and the popularity of the web will begin to explore. Search engines emerge as one solution to cataloging the expanding universe of websites, but even they struggle to keep up. Brands soon begin to look for a way to stand out. A Dao of Web Design wwwuxinterfacesdesign