HED schema viewers

HED schema basics

Schema is-a

Each child tag is considered to be a special type of any of its parents (i.e., child is-a type of parent). For example, Square is-a type of Rectangle which is-a type of 2D-shape.

The strict requirement of child is-a parent means that when downstream tools search for 2D-shape, the search will return tag strings containing Square as well as those containing Rectangle.

When you tag, you need only use the node name (e.g, Square). Tools can convert between this “short-form” and the complete path “long-form” (e.g. /Item/Object/Geometric-object/2D-shape/Rectangle/Square) when needed in search and other processing.

Viewing the standard schema

The HED standard schema contains the basic vocabulary for annotating experiments. Special purpose HED terms, such as Definition and Def are only interpreted by HED tools if they come from the standard schema.

Viewer	Link	Use
Expandable HTML	Latest or Prerelease	Look up or search for tags. View during vocabulary development.
XML	Raw or Formatted	Accessed by tools for validation and analysis.
Mediawiki	Raw or Formatted	Edit to create a new schema.

Viewing the SCORE library

Viewer	Link	Use
Expandable HTML	Latest or Prerelease	Look up or search for tags. View during vocabulary development.
XML	Raw or Formatted	Accessed by tools for validation and analysis.
Mediawiki	Raw or Formatted	Edit to create a new schema.