Metadata Working Group Keywords schema

The Metadata Working Group's schema for hierarchical keywords metadata.

Reference: Guidelines for Handling Image Metadata

Property Label Value type Exiv2 type Category Description
Keywords Keywords KeywordInfo XmpText Internal Main structure containing keyword based information
Hierarchy Hierarchy bag KeywordStruct XmpBag External List of root keyword structures
Keyword Keyword Text XmpText External Name of keyword (-node)
Applied Applied Boolean XmpText External True if this keyword has been applied, False otherwise. If missing, mwg-kw:Applied is presumed True for leaf nodes and False for ancestor nodes
Children Children bag KeywordStruct XmpBag External List of children keyword structures