One interesting point in the Jon Udell Peter Neupert interview is that HealthVault is using the CCR standard not HL7. This makes sense as the
comparison between CCR and HL7 (pdf) indicates. However Peter Neupert also suggests that too much complexity has been engineered in (or tried to be engineered in) to the standards used in health care IT. And that a simpler, more pragmatic, stepwise approach might be more beneficial. I agree.
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