This introduction needs to be expanded to better explain authority files!

wdmapper is a tool to manage mappings between authority files. What does this mean?

The current version of wdmapper is limited to simple 1-to-1 mappings, also referred to as Links. Two kinds of links are supported:

  • direct links from Wikidata items to external identifiers that is given by a target property
  • indirect links from an external source identifier, given by a source property, to external target identifier, given by a target property, The link is possible through a common Wikidata item that uses both source property and target property.

Each link consists of

  • a source URI, specified in abbreviated form as source ID
  • a target URI, specified in abbreviated form as target ID

The type of link (“relation”) can optionally be configured with option relation.