On Tue, Oct 06, 2009 at 09:14:14AM +0200, AlunFoto scripsit: > 2009/10/5 Graydon <o...@uniserve.com>: > > That "tree" is really an acyclic directed graph, > > I'm sorry, I think we belong to different tribes... :-)
Oh, quite possibly. > > and because of the > > one-and-only-one-path property of those graphs (there is only one way to > > get to any node in the graph from the root of the tree), if you move > > "leaves" like that, you're defining a different node, because it has > > different ancestry. > > Ah! You belong to the Object-Orientation tribe, don't you? :-) Actually, no. They're over the next hill. I'm from the Functional tribe. :) > Sorry, just teasing. Don't put too much into the allegory. I don't > think fancy explanations for why it doesn't work is actually > necessary. The most important thing is to know why things work the way > they do. Which is what I thought I was talking about. > By what I do for a living, I have to deal with dynamic controlled > vocabularies. The "dynamic" thing is what set my thoughts spinning re: > LR too. At work we define a plethora of business rules to deal with > it, in terms of "Change Control Procedures", "latency times" and so > on. We also have ways to encode the status of different values in the > hierarchy, like "temporary" and "deprecated". > > At the end of the day, you need rather complex XML for exchange > formats, and rather complex applications/databases to keep track of it > all. Far beyond the current scope of the keywording in LR. > > What could amend quite a lot of the issues for my own part, though, is > an option to mark certain keywords as "deprecated". Meaning that they > are still searchable and show up in the hierarchy with statistics, but > are not possible to assign to new photos. I'm surprised that isn't in there already, and it certainly ought to be fairly easy to add. Maintaining a taxonomy of labels, long-term, is a lot more work than most people expect it to be, I find. Rather like terminology for indexes and similar, even if you don't have to translate it. -- Graydon -- PDML Pentax-Discuss Mail List PDML@pdml.net http://pdml.net/mailman/listinfo/pdml_pdml.net to UNSUBSCRIBE from the PDML, please visit the link directly above and follow the directions.
