Glossary of terms relating to thesauri and other forms of structured vocabulary for information retrieval


a collection of terms allocated to resources by users in order to categorise or index them in a way that the users consider useful

Terms in folksonomies, often called tags, are typically added in an uncontrolled manner, without any underlying structure or principles. They may be idiosyncratic, but may also use current terminology more quickly than it can be incorporated into a controlled and structured scheme.