03.03.2010 20:21, Markus Krötzsch пишет: > Oh, and I also forgot about this question ... > > On Donnerstag, 7. Januar 2010, Solbrig, Harold R. wrote: > >> Markus, >> >> I am trying to visualize how this information would be represented in >> RDF. If we are defining predicate "X", it would seem that the "has type" >> predicate would translate to "range", and "Value List" would translate >> to a class named something like "X_Value_List" (since it isn't defined >> as its own class - it is only defined in the context of "X"). The class >> "X_value_list", in turn would then be the domain of three predicates - >> "name" whose range is "String", "count" whose range is "Number" and >> "source" whose domain is "Page". The response below makes it fairly >> obvious that we need to be able to make "name", "count" and "source" (or >> "X_name", "X_count" and "X_source"?) first class properties - otherwise >> you will find yourself replicating property definitions within this >> structure. >> > Since records (I really like having a not-so-ambiguous one-word term now!) are > just position-encoded value lists of constant length, we can encode them in > RDF just like containers (using numbered auxiliary properties for assigning > the individual values of each component to an auxiliary element that > represents the record). This is in fact what we have been doing for the old > n-aries in SMW so far. > > For internal objects with named fields, one would really use properties so as > to avoid the replication of their definition. > > I plan to develop a "compound types" extension for SMW that will provide a > number of options for compounds (list, set, record, sub-object), but SMW 1.5.0 > is first. This will then also address the request of Yaron to move records out > of SMW core. > > Hi! I think it will be the best way of announcement is to provide a link to updated documentation, Because lots of the users are not subscribed to the list at all. I hope the site documentation will be in sync with development (funny thing, I've fogured out that writing documentation even helps to understand and to code better). If you are too busy, perhaps someone else can do that. Such important information shouldn't lost somewhere in the piles of email messages, it should be "tagged" some way.. Dmitriy
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