Tagging - Definition and Overview

Tagging is a term used in a number of contexts for different purposes, mostly referring to adding a tag of some form.

• In many computing and information processing contexts, tagging is the process of labelling a piece of data with metadata.
  • Content on webpages is displayed as HTML which uses the construct of HTML tags
  • For instance, in linguistics, a corpus may undergo part-of-speech tagging.
  • It is also often used in relation to audio data compression, in which case it refers to adding ID3 tags or an equivalent to label a piece of music.
• The simplest form of graffiti is a simple signature known as a tag, and is consequently referred to as tagging.
• In sport it refers to passing control to another member of your team - for instance in professional wrestling.
• The labelling of an object or person with RFID (or similar technology) is also known as tagging.
• Tagging is also used in biochemistry where tags can serve multiple purposes. They can aid purification or detection. Tags can also be the basis for non-covalent construction of new nanostructures