The FICAM Federation Interoperability Working Group has a Data Attribute
Tiger team. It is tasked with identifying a catalogue of data attributes
for use in government application attribute exchange. One place to start
with our response is our
https://wiki.informationcard.net/index.php/Claim_Catalog
It is also the case that we have been identifying other useful attributes in
our various projects. If you are interested in contributing to the ICF
response. Please let me know ASAP.
Best regards,
--Mary