[uf-discuss] multi-word tags
Scott Reynen
scott at randomchaos.com
Tue Sep 25 09:28:19 PDT 2007
On Sep 25, 2007, at 8:05 AM, jim at eatyourgreens.org.uk wrote:
> delicious uses + to combine multiple tags.
>
> Eg. all links tagged with 'microformats' and 'accessibility':
> http://del.icio.us/tag/accessibility+microformats
>
> So spaces could be encoded as +, but + could not be automatically
> parsed as
> a space in a single tag name.
I think this can be confusing because the term "tag" within the
context of del.icio.us doesn't mean quite the same thing as it does
within the context of rel-tag. In rel-tag, the tag is the last
portion of the URL, which is always a single value. So http://
del.icio.us/tag/accessibility+microformats is still a single rel-tag
tag of "accessibility microformats". That this single rel-tag tag
happens to be a document that describes the intersection of two
separate del.icio.us tags is outside the scope of rel-tag, which only
defines the relationship between the two documents, not the meaning
of either.
This is further confusing because we can often assume the same
meaning for a given tag in multiple tag spaces, creating the illusion
that the meaning is universal. It can be useful to take a tag from
one space and relate it to the same tag in another space (as Operator
does). But that's not something defined by the rel-tag spec and not
something we can rely on. In some cases the same tag can have very
different meaning in different tag spaces. For example, the tag
"bright" in the context of Flickr tends to refer to visual
brightness, whereas the same tag on del.icio.us tends to refer to
intelligence. Similarly, a space or any other character can take on
different meaning in different tag spaces. This contextual meaning
is a good thing, in my opinion. But regardless of the goodness, it's
not something we could standardize even if we wanted to.
Peace,
Scott
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