[TYPO3-ect] taxonomies / categories in TYPO3

[Elmar Hinz]

Mads Brunn wrote:

> 
> you talk about "tags". How do you see "tags" compared to "categories"?
> Are "tags" just another word for "categories" or...?

Both is metadata. The difference is in the origin and the usage. Categories
are more often hierarchical organized than tags.

Category Tree <> Tag Cloud
Web 1.0       <> Web 2.0
Professionals <> Community
Hierarchical  <> Collection
Systematic    <> Intuitive
University    <> Flickr, Blogs

http://en.wikipedia.org/wiki/Tag_%28metadata%29

Tags are usually chosen informally and personally by its author/creator or
by consumer/viewers/community. Tags are typically used for resources such
as computer files, web pages, digital images, and internet bookmarks (both
in social bookmarking services, and in the current generation of web
browsers - see Flock). For this reason, "tagging" has become associated
with the Web 2.0 buzz. Many people associate "tagging" with the idea of the
semantic web, however some believe that tagging may not be having a
positive effect on the overall drive towards the semantic web.


http://en.wikipedia.org/wiki/Category_%28taxonomy%29

Taxonomy is the practice and science of classification. The word comes from
the Greek τάξις, taxis, 'order' + νόμος, nomos, 'law' or 'science'.
Taxonomies, or taxonomic schemes, are composed of taxonomic units known as
taxa (singular taxon), or kinds of things that are arranged frequently in a
hierarchical structure, typically related by subtype-supertype
relationships, also called parent-child relationships. In such a
subtype-supertype relationship the subtype kind of thing has by definition
the same constraints as the supertype kind of thing plus one or more
additional constraints. For example, car is a subtype of vehicle. So any
car is also a vehicle, but not every vehicle is a car. So, a thing needs to
satisfy more constraints to be a car than to be a vehicle.


Regards

Elmar