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
Makers and Making An Article by Alan Jacobs blog.ayjay.org The [Silmarils] are good; their making was at least potentially innocent; but afterward arose a lust for owning and controlling that led to great tragedy… The aspect of humanity which the elves represent most fully – both for good and ill – is the creative one.” And this is why “making” in and of itself is not the answer to our decadent moment. “Love of things, especially artificial things, could be seen as the besetting sin of modern civilisation, and in a way a new one, not quite Avarice and not quite Pride, but somehow attached to both” – and this is the Fëanor Temptation. It is in light of this temptation that I advocate repair, which is a mode of caring for what we have not made, but rather what we have inherited. We will not be saved by the making of artifacts — or from the repair of them, either; but the imperative of repair has these salutary effects: it reminds us of our debt to those who came before us and of the fragility of human constructs. The SilmarillionRethinking Repair repairmakingcreativityhumanity