The CLAMS Vocabulary defines an ontology of terms for a core of objects and features exchanged amongst tools that process multi-media data. It is based on the LAPPS Web Service Exchange Vocabulary at The vocabulary is being developed bottom-up on an as-needed basis for use in the development of the CLAMS platform. In the hierarchy below annotation types are printed with the properties defined for them, metadata properties are printed between square brackets.

Thing (v1) : id
Annotation (v5) : [document, labelset, labelsetUri] : document, label, classifications, classification
Region (v4) : [timeUnit]
TimePoint (v4) : timePoint
Interval (v4) : start, end, targets
Span (v4)
TimeFrame (v5) : frameType
Chapter (v5) : title
Polygon (v4) : coordinates, timePoint
BoundingBox (v4) : boxType
VideoObject (v4) : polygons
Relation (v4)
Document (v1) : location, mime
VideoDocument (v1)
AudioDocument (v1)
ImageDocument (v1)
TextDocument (v1) : text
Alignment (v1) : [sourceType, targetType] : source, target