[Semediawiki-user] FW: Property types?

[Keith F. <Kei...@pn...>]

I accidentally only replied to Patrick.  Any help with this would really be
appreciated.

 - Keith

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Patrick:

Thanks for the reply.

I'm not talking about annotating properties using the [[has type::]]
property.  I'm thinking there is some kind of 'meta-type' that I can't find
any documentation on.  Of course, I could be missing the point.

The type that I'm refering to is apparent on the Special:Properties page.
On that page there is a combo box with three options: 'Datatype properties',
'Wikipage properties' and 'N-ary properties'.  I'm wondering what each of
these is.

Actually, I know what N-ary properties are.  It is the first two that I'm
confused about.

Thanks,

 - Keith


On 5/6/09 10:10 PM, "Patrick Nagel" <ma...@pa...> wrote:

> Hi Keith,
> 
> On 2009-05-07 11:04, Keith Fligg wrote:
>> Can someone tell me the difference between datatype properties and
>> wikipage properties?
> 
> Do you mean properties that are set to type Page or other types (like String,
> Number, Date, ...) via the [[Has type::...]] property assignment on the
> property's page?
> 
>> We have many of each kind, and it would be nice to
>> know a) why a property gets assigned to one type or the other, and b)
>> what practical use there is for either one?
> 
> I don't understand question a). Did you read [1]?
> As for b) - I can think of many practical uses for specifying a property's
> type 
> (instead of leaving it at the default type - Page):
> * You just want to have strings, that don't show up as red links, because
> there 
> is no relevant information for each property value, thus you don't need extra
> Wiki pages for each property value.
> * You want numbers to be sorted correctly (assign type Number)
> etc. (see [1]).
> 
> Patrick.
> 
> [1]: http://www.semantic-mediawiki.org/wiki/Help:Properties_and_types

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