[rdfweb-dev] Suggestion about FOAF vacabulary
jam at wirerimmed.com
Fri May 2 18:11:15 UTC 2003
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On Friday, May 2, 2003, at 05:29 AM, Ian Davis wrote:
> On Friday, 02 May 2003 at 12:56, Libby Miller wrote:
>> You're right about people having several email addresses (and several
>> people having the same address, although that possibility is ruled out
>> by the definition of mbox). Another problem is that different people
>> over time may have the same mail address (this happens at Bristol
>> university, where they are recycled). This is ruled out too by the
>> definition of mbox.
> mbox has quite a narrow field of applicability - geeks like us that
> care about such things. Members of my family regularly change email
> addresses between the various free providers, even signing up several
> times to the same ones under new names over the course of several
> years. (I'm pretty sure I had iand at hotmail.com once upon a time but I
> can't remember the password...)
But if in each one of their FOAF files they only list their unambiguous
addresses at the moment doesn't it reduce the danger of creating a bad
connection? I suppose FOAF suffers from the same problem as every other
kind of documentation namely, if it's not current it's worse than not
having it at all.
> Uniquely identifying people is always going to be hard - how do I
> indicate that I know Nelson Mandela the former president of South
> Africa (I don't really)?
If you knew Nelson Mandela you'd likely have his email address as would
all the other folks who knew him. I don't think it's important to know
via your FOAF file that you know *the* Nelson Mandela just that you
know a Nelson Mandela with an mbox of X and a FOAF descriptor located
at Y. Now if he decides to describe himself fully at location Y then
that makes FOAFSpace that much more lush but it's not necessary.
> One way is to identify some other characteristics that are unique,
> such as when he was president of South Africa. OWL and DAML-TIME could
> be used to assert that only one person can be president of a county as
> any one time.
True but you couldn't use this same scheme to uniquely identify
everyone. Mboxes are universal amongst people who are online.
> What other alternatives are there I wonder?
Fully qualified phone number perhaps? Perhaps using the SHA1 to keep it
private. If Nelson didn't use email but I had his direct line perhaps I
could use that instead.
WireRimmed - Custom software for your small business
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