Participation Data Specification - Participation Data Specification v3.3
Before you respond I do understand the need for data standards but much of what is covered seems to be how to express names, addresses, occupations etc for which surely we already have standards? If not, one has to wonder why not. There does not seem to be much health specific in all this except maybe date of death details.
I should also point out that talk of semantic interoperation has been discussed for years but thus far it has seemed the best we can do falls far short.