Etienne Saliez wrote: > CONCLUSION : > > I believe we should clearly identify content and transportation issues > separately. > > Using this new philosophy, we will become able to cope with both > situations, as well the network approach, as well the traditional > interchange approach. This is precisely what HL7 version 3 is about to do: we define an information model that is the common view of the world for all EMR systems. All EMR systems who belong into the "HL7 v3 community" must at least be able to map between their internal information architecture and at least a subset of HL7 v3's information architecture. The problem of messaging is solved as the second step. It's mostly down-stream derived from the information model. But, the business transactions are defined so that they are as high level and business related as possible. Essentially an HL7 v3 message will be defined as an instance graph pattern. So, HL7 v3 will basically ship around instance graphs of the information model (rendered in whatever presentation technology), but these instance graphs are constrained to conform to certain patterns where this is necessary to insure unambiguous interchange of well-defined meaning. Finally, HL7 v3 has the infrastructure to synchronize on data dictionaries and knowledge bases naturally built-in. CONCLUSION: Forget about HL7 version 2.x! Just simply forget about it it in this discussion. There may be still reason to implement HL7 v2.x interfaces, but that's not an issue that should concern the design of a new OpenEMR kernel, nor the design of a new open software EMR framework. Please, would you, could you, just forget HL7 v2.x and never mention it again? HL7 version 3 (THREE) has a very different architectual approach, HL7 version 3 is important stuff, but should not be mixed with HL7 v2 in one discussion. regards -Gunther -- Gunther_Schadow-------------------------------http://aurora.rg.iupui.edu Regenstrief Institute for Health Care 1050 Wishard Blvd., Indianapolis IN 46202, Phone: (317) 630 7960 [EMAIL PROTECTED]#include <usual/disclaimer>
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