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
You and your user are one In the case of the seeming egalitarianism and beneficence of the voice from the cloud that says “You Are Not Your User,” what I hear in that voice is the ringing of a cash register, and the creaking of the crank on the side of a box that software development efforts disappear into, and that money comes out of. A mechanism that would seize up instantly if some still small voice were to propose the opposite of what the thunder says: that you and your user are one. Dan Klyn, Sermon for WIAD Bristol 2021 understandinggroup.com My job is simply to design gadgets that I likeReversibility of perspectives uxsoftware