[uf-dev] Preventing false positives

Dan Brickley danbri at danbri.org
Sat May 3 07:13:43 PDT 2008

Toby A Inkster wrote:
> On 3 May 2008, at 10:15, Toby A Inkster wrote:
>> Well, TITLE is a singular property
> Wrong, I was. TITLE is plural. But singular properties do exist (e.g. 
> 'fn', 'class', 'bday'), so the technique outined may still be of some 
> use for those.

Is 'singular property' accepted Microformat-community terminology? (or 
just an obvious/sensible phrase). Is there any machine-readable 
representation of which microformat properties are singular?

It seems roughly what RDF/OWL calls 'functional' property (eg. in FOAF, 
'birthday','gender', 'primaryTopic' are functional).

Is there a microformal word for the inverse of this concept: properties 
that have at most one proper value, for anything they apply to? In FOAF, 
examples of this (we call it an "Inverse Functional Property") include 
"homepage", "weblog", "openid", "tipjar", "jabberID", "mbox_sha1sum"...




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