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
The Worst Video Game Ever A Podcast from 99% Invisible by Roman Mars & Howard Scott Warshaw 99percentinvisible.org Disorientation
Disorientation Warshaw: E.T. commits the ultimate video game sin: to disorient the user. And you have to understand the difference between frustration and disorientation, right? Frustration in a video game is essential. A video game must frustrate a user, but you should never disorient them. Peabody: Howard says that frustration ultimately creates satisfaction. It’s a huge motivator in a good game, to get better, faster, stronger. Disorientation, on the other hand... To become completely lost designgames