[Xesam] Ontology snapshot
antoni.mylka at dfki.uni-kl.de
Mon Jun 11 09:15:01 PDT 2007
Evgeny Egorochkin pisze:
> I'm still trying to come up with a good case where we would need extra
Please do. It could be possible to use composition instead of
instantiation to express the interpretation. (DataObject
hasInterpretation InformationElement). This would make many things more
complicated though, and will probably not meet the constraints you set
for xesam (One Source, one Content)...
> Cases to consider: Trash (a folder with files and also trash container), Video
> DVD(a complex media container vs filesystem).
This is tricky indeed...
As far as I know typical DVD movies don't have data, so they can
unambigously be interpreted as a media container, which contains media
stream that is interpreted as audio/video etc... A normal data DVD will
be interpreted as a filesystem.
The problem arises with hybrid CD's (those that have data AND audio
tracks). I haven't seen a hybrid DVD (are there any?). The question is
if this is enough to change the most fundamental design assumption of
the entire ontology, just to cover this case...
I'd say no. We could say:
RemoveableMedium is interpreted as a MediaContainer which contains:
MediaStream interpreted as Audio
MediaStream interpreted as Video
MediaStream interpreted as Filesystem
and all problems go away...
But... if we find more cases then we'll need to reconsider.
antoni.mylka at dfki.de
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