[uf-discuss] Hidden metadata no microformats

Pelle W mejllistor at kodfabrik.se
Wed Jul 4 23:43:30 PDT 2007

Michael MD skrev:
>> I've updated the FAQ to reflect that.
>> I've still seen no citation for any *prohibition* of hidden data in 
>> microformats...
> I do think there is a valid case for being able to have *some* hidden 
> items where humans can easily work out from other stuff that IS 
> displayed what they are
> but machines may still need them
> - such as the case that was discussed here a few months ago of 
> displaying the (adr or hcard) region or country in hcalendar items 
> where it is assumed that people looking at the page would already know 
> them because all the events are in the same city (the summary, dates, 
> description, etc would still be visible) or where that information is 
> already present in a human-readable form somewhere else on the page or 
> it is obvious to humans (such as a site or section of a site about a 
> certain city)
> I'd say it is still better to include that extra information even if 
> it has to be hidden!
> - that extra data can still be useful to aggregators/search 
> tools/export tools etc - and may in some cases be needed.
> I don't think there should be ever be any case where visual design 
> considerations cause people to omit important data,
> they should still be able to include it somehow.
> Forcing people to display EVERYTHING might cause lots of people out 
> there to omit potentially useful data. 
Another way of "legally" hiding microformats without really hiding any 
information is to replace the text with images with the help of CSS. If 
you asked the borswer or some other program if the microformat is hidden 
it would then say yes - but the info could very well be visible in 
graphics. Perhaps a map has replaced some geo-data or a very beutiful 
headline has replaced the name in a hCard.

/ Pelle

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