HED specification


Specification role

The HED specification document formalizes the syntax and behavior of HED (Hierarchical Event Descriptors) vocabulary, annotations, and supporting tools. The specification supports three versions of the specification:

  • develop - development branch which is under discussion.

  • latest - includes revisions approved by the HED Working Group but not released.

  • stable - the latest released form.

For more information about HED see The HED project homepage and the HED resources page.


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