You can export data domains from the data domain glossary to an XML file. You can also import data domains from an XML file to the data domain glossary. You create a data domain group to organize data domains into specific groups such as Personal Health Information (PHI), Personally Identifiable Information (PII), or any other conceptual group that is relevant to the project. You can have a data domain in multiple data domain groups. For example, phone number can belong to both PII and PHI data domain groups.