A bit of a clearing house.
Health Level 7, used for transferring medical data around.
HL7 version 3 will include XML embedding of HL7 data.
The goals of the Apache XML Project are: * to provide commercial-quality standards-based XML solutions that are developed in an open and cooperative fashion, * to provide feedback to standards bodies (such as IETF and W3C) from an implementation perspective, and * to be a focus for XML-related activities within Apache projects