Phenomenal: California Light, Space, Surface A Book by Robin Clark www.goodreads.com Phenomenal: An IntroductionPhenomenal: Exhibited WorksStealth Architecture: The Rooms of Light and Space Seeing Is Forgetting the Name of the Thing One SeesRobert Irwin: A Conditional ArtThe Finish Fetish Artists art
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