Comment from:
re: Tim Hare's question re: consumer receipt:
The National Retail Federation (NRF) administers the Association of
Retail Technology Standards (ARTS) which publishes XML standars for
retail and one of the first publicly released standards was for the
Digital Receipt:
http://www.nrf-arts.org/ (select IXRetail from left navi)
This was originally a propreitary effort by NCR that has now been handed
into the public domain via ARTS. If there's work to be done in this
area, it would seem to me that it should simply incorporate that
definition as it is already well accepted within the retail
constituency.