Tag Archives: HL7

Evaluating e-health standards II – governance and commercial aspects

Posted on 20/08/2014 by wolandscat

Following on from my post yesterday, Grahame Grieve commented that I had not dealt with issues of stability and commercial acceptability. I had not originally intended to do that, but on reflection, he is right – a standard that is … Continue reading →

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Beyond the hype: evaluating e-health standards

Posted on 19/08/2014 by wolandscat

A new e-health standard comes along every couple of years. In Gartner hype cycle terms, it starts out on the rise toward the ‘peak of inflated expectations’, then falls into the ‘trough of disillusionment’, before either dying or rising again … Continue reading →

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Why clinical models are essential to big data

Posted on 11/03/2014 by wolandscat

I attended HIMSS 2014 in the mammoth convention centre in Orlando 10 days ago, and went to a session on ‘Clinical Decision Support – is progress being made?’. Despite this being the dead Thursday of HIMSS, around 50 people showed … Continue reading →

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The CDA ‘dual-content’ conundrum

Posted on 28/01/2012 by wolandscat

In his recent blog post, Eric Browne highlights what may be a problem in the design of the Australian PCEHR, due to the well-known CDA feature allowing dual forms of content – text and structured, supposedly equivalent – to be … Continue reading →

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DCM – Data Types and Reference Model considerations

Posted on 11/09/2011 by wolandscat

Following the DCM meeting convened by Dr Stan Huff (Intermountain Healthcare) in Washington in July, reported in an earlier blog post, there is a further meeting this week in San Diego, which will discuss the issues of ‘data types’ and … Continue reading →

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Information models, DCMs and Archetypes

Posted on 07/07/2011 by wolandscat

I will be attending a ‘Fresh Look’ meeting in Washington next week. The idea is to make some progress on the topic of  ‘detailed clinical models’ (DCMs). Some of the goals include setting up a repository of DCMs, establishing governance, … Continue reading →

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Detailed Clinical Models (DCMs) – some basic facts

Posted on 03/06/2011 by wolandscat

The New Zealand e-health programme architecture task-force has published its Working Interoperability Reference Architecture blueprint document. With respect to the document and the comments posted (I tried to post myself,  but the comment disappeared), it seems worth making a couple … Continue reading →

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Ontologies and information models: a uniting principle

Posted on 24/05/2011 by wolandscat

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 →

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The HL7 Null Flavor Debate – part 2

Posted on 18/05/2011 by wolandscat

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.

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The HL7 Null Flavor Debate – part 1

Posted on 18/05/2011 by wolandscat

(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 →

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