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Monthly Archives: May 2011
Ontologies and information models: a uniting principle
Software developers and ontologists generally live in two different worlds. The former group think they are building systems to perform information processing and computation, and the latter group think they are formally describing some aspect of the world. [Note: slight … Continue reading
Posted in Computing, Health Informatics
Tagged HL7, ontologies, software engineering, standards
9 Comments
The HL7 Null Flavor Debate – part 2
Previous: HL7 null flavors part 1 Null flavors – Objection #3: ontological problems The following table shows the current HL7v3 null flavor values. A full version of the table appears in Grahame Grieve’s blog post.
Posted in Computing, Health Informatics, openehr
Tagged data types, HL7, ISO 21090, models, openEHR, standards
4 Comments
The HL7 Null Flavor Debate – part 1
(With apologies to those who use international English and normally spell it as ‘flavour’; in this post, I will spell it properly in informal text, and in the US way when referring to the formal HL7 null flavour concept.) Grahame … Continue reading
Posted in Computing, Health Informatics, openehr
Tagged data types, HL7, ISO, ISO 21090, models, openEHR, standards
8 Comments
One information model to rule them all?
One of the age-old debates in health informatics: can there be ‘one information model’ for shared clinical information? Some dream of a model to rule them all, uniting standards efforts, while others dismiss the idea as impossible or unrealistic. Obviously … Continue reading
How could HL7 refresh?
Continuing on from the basis established in the previous post, here I will say what I think HL7 could do to help here. My suggestions are as follows:
What needs fixing in e-health?
or, e-health seen through the prism of an ancient pantheon of gods… Grahame Grieve’s recent blog entry on the HL7 Fresh Look Task Force seems a good excuse for me to have another big picture look at e-health. The fact … Continue reading