Author Archives: wolandscat

About wolandscat

I work on semantic architectures for interoperability of information systems. Much of my time is spent studying data, ideas, and knowledge, and using methods from philosophy, particularly ontology and epistemology.

A FHIR Experience – the formalism

Posted on 08/05/2019

This post continues the review presented in the previous post, where I looked at the Administrative resources of FHIR. Here I take a look at the formalism used in FHIR, i.e. how the resources (and profiles) are formally expressed. FHIR … Continue reading →

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A FHIR experience: models or just definitions?

Posted on 06/05/2019

This is a second instalment of a technical review of the HL7 FHIR resources. As described in the previous post, this review is the result of an element-by-element transcription of the FHIR DSTU4 resources to the openEHR BMM (Basic-meta Model) … Continue reading →

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A FHIR experience: consistently inconsistent

Posted on 05/05/2019

In recent work I am involved in, the HL7 FHIR DSTU4 resources were converted to the openEHR formalism known as Basic Meta-Model (BMM), which is published as an open specification. BMM is an object-oriented formalism, conceptually similar to UML (minus … Continue reading →

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openEHR Task Planning – a visual model of clinical workflow

Posted on 17/04/2019

We have been making steady progress on the openEHR Task Planning specification and visual modelling language (TP-VML) for clinical workflow. One of the differentiators of Task Planning, is that, like YAWL, it is designed as a formalism for developing fully … Continue reading →

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Why the NHS needs its own health-tech university

Posted on 06/04/2019

The NHS has around one million employees and serves most people in England and Wales. We could easily imagine a slightly larger organisation serving the whole UK, although for historical reasons Scotland and Northern Ireland are separate. Another large public … Continue reading →

Posted in Health Informatics, openehr, standards | Tagged , , , | 4 Comments

The long slow death of UML

Posted on 07/03/2019

The Unified Modelling Language aka UML has been around for 22 years, as you can see from the OMG UML page. We use it extensively to publish the openEHR specifications, in a similar way to many other organisations. Developers often … Continue reading →

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Why NPfIT failed

Posted on 28/10/2018

Below is my list of reasons why I think NPfIT failed. NPfIT was the NHS National Programme for IT in health, starting in 2002, with Richard Grainger appointed as NHS IT director. A timeline is published here. NPfIT is generally … Continue reading →

Posted in Health Informatics, openehr, Politics, standards | 8 Comments