Building bridges to other domains The DataCite Metadata Schema is a general, domain-agnostic metadata schema used for DataCite DOI registration. To improve interoperability, the DataCite Metadata Schema can be mapped, or crosswalked, to commonly used or domain-specific metadata standards. This mapping from the DataCite Metadata Schema to Schema.org builds on existing efforts to produce crosswalks. For example, the DataCite Metadata Working Group has produced a mapping from DataCite to Dublin Core. DataCite Content Negotiation also returns DataCite DOI metadata in various formats, including Schema.org, JATS, and BibTeX. This mapping is based on the same mapping used by DataCite’s metadata conversion library (bolognese), with modifications.