I always thought of myself as a jackass.
Perhaps other animals will declare themselves.
W. Ed Hammond, Ph.D.
Director, Duke Center for Health Informatics
Charles McCay
<charlie at ramseysy
stems.co.uk> To
Sent by: For openEHR technical discussions
openehr-technical <openehr-technical at openehr.org>
-bounces at openehr. cc
org
Subject
Re: ISO 21090 data types too
11/09/2010 12:29 complex?
PM
Please respond to
For openEHR
technical
discussions
<openehr-technica
l at openehr.org>
Pablo
I agree that this is a good intellectual exchange. I also agree that
the delight and interest in finding differences exemplified in this
discussion sometimes obscures the substantial amount of (very similar)
utility that these various elephants provide.
I have confidence that the ants can and should influence the elephants
and their behaviour. The elephants were born and are sustained in
order to make life easier for those of us trying to solve real
information processing problems.
Alongside that I would say that these architectural and process
discussions are valuable - "There is nothing so practical as a good
theory" [1] -- interestingly Kurt Lewin was as interested in how to
find good theories, as in maintaining a productive balance between
theory and practice. My hope is that the healthcare IT community
(Ants, elephants and the rest of the menagerie) delivers increasing
value while continuing to learn together and from each other.
I am sure that the learning will involve sacred cows being challenged
and passed over, and will involve some discomfort as well as delight.
It will involve engineering, economics, politics, personalities, and
more
all the best
Charlie
[1] http://www.infed.org/thinkers/et-lewin.htm
On 9 November 2010 12:13, pablo pazos <pazospablo at hotmail.com> wrote:
> Hi All,
>
> I think this is a good intelectual interchange, but I really don't know
what
> conclussions will reach.
> From outside I see people comparing positions and opinions, instead of
> searching some common point of harmonization. Instead we talk about
formats
> and ways of modeling (it's like the windows vs. linux discussion).
> Reality is complex, and there are many ways of modeling reality, none is
bad
> when it has a good utility.
>
> My experience is that the HL7 ways of modeling things comes from
> representing XML Schemas in an object oriented way, but is not an schema,
> nor an UML.
>
> When I need to use some HL7 message or a CDA, I just simply model the RIM
or
> the CDA in UML, and implement that. Yes, it would be nicer if the model
was
> already UML, but I know I'm a small ant, and I can't tell a big elephant
to
> change. So I work a little harder to get things done, and it works.
>
> In the HL7 UML models I've done, I get rid of a lot of (I think)
unnecesary
> classes, in HL7 dataypes I've only the CD and CS classes to represent
codes,
> I get rid of GTS and use SET<TS>, for IVL<PQ> I just use IVL<T>. When it
> come to structures like SET, IVL, LIST and BAG, I don't use ANY as a
> superclass. I separate real datatypes from structures.
>
>
> Just my grain of sand.
>
> --
> Kind regards,
> A/C Pablo Pazos Guti?rrez
> LinkedIn: http://uy.linkedin.com/in/pablopazosgutierrez
> Blog: http://informatica-medica.blogspot.com/
> Twitter: http://twitter.com/ppazos
>
>
> _______________________________________________
> openEHR-technical mailing list
> openEHR-technical at openehr.org
> http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical
>
>
--
Charlie McCay, charlie at RamseySystems.co.uk
Ramsey Systems Ltd, 23D Dogpole, Shrewsbury, Shropshire SY1 1ES
tel +44 1743 232278 / +44 7808 570172? skype: charliemccay
linkedin:charliemccay
_______________________________________________
openEHR-technical mailing list
openEHR-technical at openehr.org
http://lists.chime.ucl.ac.uk/mailman/listinfo/openehr-technical
