Should we convert to using the latest official W3C Xlink schema? Yes. Adoption of the latest W3C Xlink schema will help standardization and help to avoid double importing of Xlink and avoid the need for the additional xlink schema found in earlier versions of the draft DE 2.0 schema. The challenge is that some of the attribute names or group names have changed and the new official schema uses the same namespace as the older schema we and related EDXL standards, like Hospital Availability and GML Simple Features Profile, were using. Consequently, there remain double-import issues until those schema are updated.