[Xesam] Ontology snapshot

[Evgeny Egorochkin]

On Monday 11 June 2007 16:49:18 Antoni Mylka wrote:
> Evgeny Egorochkin pisze:
> > The objection I have here is that Attachment should be Email. Since
> > that's where attachments are stored. As you know attachment is just
> > another part of an email. Stored *in* an attachment is a stretch.
>
> Not only email
>
> VCARD attachments: PHOTO (RFC 2426 sec. 3.1.4), LOGO (sec. 3.5.3), SOUND
> (sec. 3.6.6.), KEY (sec. 3.7.2)
>
> ICAL attachments: ATTACH (RFC 2445 sec. 4.8.1.1)
>
> ID3 attachments: attached picture (http://www.id3.org/id3v2.3.0 sec.
> 4.15), general encapsulated object (op. cit. 4.16)
>
> EXIF attachments: audio data (http://www.exif.org/Exif2-2.PDF sec. 5).
> Used by some digital cameras to attach a sound clip to a picture.
>
> That's why I would opt for a generic Attachment class, without
> references to email. I do agree that an attachment is part of an email.

Thanks for your insight. I didn't realize so many file formats had 
attachments. Maybe EmbeddedFile or EmbeddedContent is a more generic name of 
this? I suspect there will be several attachment subtypes.

-- Evgeny