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[Gofriends] RGD releases the second video in the Introduction to Biomedical Ontologies series

Smith, Jennifer jrsmith at
Tue Sep 1 15:52:19 PDT 2009

The Rat Genome Database (RGD) has just released the newest video in our
series of tutorials about biomedical ontologies.  The previous video in
this series gave a general overview of what an ontology is.  This video
looks at the ontology annotations themselves.  For novice users,
"Anatomy of an Ontology Annotation, part 1" is primarily designed as a
companion to the first video of the series.  However, for those who are
already somewhat familiar with ontology terms and their use, it can also
stand alone as an introduction to some of the components of ontology
annotations.  The video touches on how the use of ontology annotations
can save researchers both time and effort, then discusses the
distinction between annotations which were made by curators based on
experimental data and those based solely on computational evidence.
Finally, it introduces the evidence code as a way to tell the difference
between these two categories of annotations.  For users who want to know
more about annotations, the upcoming video "Anatomy of an Ontology
Annotation, part 2" will delve into more detail about specific evidence
codes, qualifiers and the "WITH" field.


Like the first video of the series, "Anatomy of an Ontology Annotation,
part 1" has been posted on both SciVee (
and Vimeo (  RGD is pleased to make this
video available for the GO community to use.


If you have any questions, comments or suggestions, including suggested
content for future videos, please do not hesitate to send them to
Jennifer Smith at jrsmith at


The RGD Team


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