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
Two Hundred Fifty Things an Architect Should Know An Essay by Michael Sorkin www.readingdesign.org The distance of a whisper.CornersWant, need, affordWhat the brick really wants.Borders+3 More 136 things every web developer should know before they burn out and turn to landscape painting or nude modelling architecturedesigncollections
Want, need, afford What the client wants. What the client thinks it wants. What the client needs. What the client can afford. What the planet can afford. ux
What the brick really wants. The material finds the right objectWe are working against the grain of the woodThe joy of the humble brick material
Logjam That there is a big danger in working in a single medium. The logjam you don’t even know you’re stuck in will be broken by a shift in representation. creativitymedia