Keith Boone


The Longitudinal Identity of a CCD

By Keith Boone – This question comes up from time to time. For a given patient, how is there a unique identifier which uniquely identifies the CCD for the patient as it evolves over time. The answer is no, but to understand that, we need to talk a little bit about identifiers in CDA and how they were intended to be used.





Hackers on FHIR

By Keith Boone – One recent concern about FHIR that has crossed several different list servers recently is that of making patient health data more readily hackable. In one scenario, the concern goes: If we make patient data more accessible via FHIR, that will also make it more likely to be hacked. Another scenario goes:



A Theory of Interoperability

By Keith Boone – Definitions of interoperability surround us, but all the attention in the world to definitions make very little difference in the end. I have a theory that people will believe two systems are interoperable when they can observe that the systems work together in simple ways with little to no effort, and in complex ways with some effort.