Who the problems are Recently my attention was drawn to a quote from Peter Drucker who said, "If there isn't dissent, we would not know where the problems are." I said to my husband, "Look, if there isn't dissent, we wouldn't know who the problems are." I think one has to keep that in mind. Peter F. Drucker, Every Tool Shapes the Task argument
Managing Oneself A Book by Peter F. Drucker Only from strengthFeedback analysisTaking pride in ignoranceBut bulldozers move mountainsWaste as little effort as possible on low competence+8 More Never change the technologyWhat to learn managementdisciplinewisdomwork
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