Degrees of Annotation - Revision history

Cjm2 at 23:15, 15 May 2006

2006-05-15T23:15:33Z

Nigam at 19:22, 21 November 2005

2005-11-21T19:22:54Z

Nigam at 19:22, 21 November 2005

2005-11-21T19:22:04Z

New page

"Annotation" has various definitions. One of them is:
Annotation is information associated with a particular point [or item] in a document or other piece of information.

In the context of the bio* domain, annotation referes to some descriptive text that assists in the interpretation of the primary information [about an item] at hand. There can be various levels of annotation for example:

* If the sequence trace coming out of a sequencer is the primary information then the assignment of "labels" such as 'start site', 'exon', 'intron' to different parts of the sequence is an annotation.

* At the second level this annotation itself [the statement about the boundries of 'start site', 'exon', 'intron'] is a conceptual item called a gene. Which is further "annotated" to have a particular 'function' or 'location' in the cell.

* At a still higher level this annotation [about the function or location] is an item that is "annotated" to be relevant only in a certain genetic or experimental context.

so defining the boundry between an information item (or data) and an annotation is dependent on the use case.

← Older revision		Revision as of 19:22, 21 November 2005
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−	"Annotation" has various definitions. One of them is:	+	"Annotation" has various definitions. One of them (from wikipedia) is -
	Annotation is information associated with a particular point [or item] in a document or other piece of information.		Annotation is information associated with a particular point [or item] in a document or other piece of information.

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 In the context of the bio* domain, annotation referes to some descriptive text that assists in the interpretation of the primary information [about an item] at hand. There can be various levels of annotation for example:
-* If the sequence trace coming out of a sequencer is the primary information then the assignment of "labels" such as 'start site', 'exon', 'intron' to different parts of the sequence is an annotation.
+* If the assembled genome coming out of a sequence assembly program is the primary information then the assignment of "labels" such as 'start site', 'exon', 'intron' to different parts of the sequence is an annotation.
 * At the second level this annotation itself [the statement about the boundries of 'start site', 'exon', 'intron'] is a conceptual item called a gene. Which is further "annotated" to have a particular 'function' or 'location' in the cell.
@@ Line 11: / Line 11: @@
 so defining the boundry between an information item (or data) and an annotation is dependent on the use case.