[Nepomuk] Re: Using nfo:OperatingSystem

[Sebastian Trüg]

On 04/24/2011 03:45 PM, Matthias Fuchs wrote:
> Hi there,
> 
> I have another question regarding ontologies.
> The Metalink specification supports OS fields, these contain the OS a file is 
> for.
> E.g. "test.exe" could have "Windows XP", "Windows Vista", "Windows 7" ... 
> assigned to it. [1]
> 
> Now I wonder how I should assign these oses to the downloaded file.
> 
> Suppose we have a Nepomuk:Resource dest (the downloaded file), would the 
> following be ok?
> 
> QList<Nepomuk::Resource> oses;
> foreach (const QString &osString, osStrings) {
>   Nepomuk::Resource os(osString, NFO::OperatingSystem);
>   os.setLabel(osString); //or rather os.setProperty(NIE::title(), osString)?

both are fine. nie:title would probably be more correct.

> }
> dest.addProperty(NIE::hasLogicalPart(), oses);

This does not make sense since the os is not part of the file.
For now you have to use nao:isRelated.
It might make sense to add specific properties that express this
relation properly.

> //especially here I am not sure, how to correctly connect an 
> InformationElement with a DataObject. Basically I want to say the file works 
> on these oses.
> 
> Thanks for reading! :)
> 
> 
> [1] Which terms to use, e.g. rather Windows Nt ... is not that clear in the 
> spec.
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