What is XDS?
XDS, which stands for cross-enterprise document sharing, helps manage access of patient electronic health records across health enterprises, by creating a standard set of specifications to enable sharing of medical documents between enterprises. XDS assumes that enterprises belong to an XDS affinity domain, which is a group of health care enterprises with shared policies usually bound through legal agreements. Four systems for mediating sharing of data within the XDS profile include the document repository, document registry, document source, and document consumer. Exchange of data itself takes place through XDS transactions. Key transactions include a provider/register document set, a registry stored query, and retrieval of the document set. XDS-I is an extended profile with new specifications optimized specifically for medical imaging.