Mappings

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.

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.

Two kinds of links are supported:

direct links

Direct links are mappings from a Wikidata item to an entity from another authority file. The external authority file is identified by its target property. The entity within in authority file is identified by an external identifier.

indirect links

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.