Hi Thilo,

See my comments inline below...

> -----Original Message-----
> From: openehr-technical-bounces at openehr.org [mailto:openehr-technical-
> bounces at openehr.org] On Behalf Of Thilo Schuler
> Sent: Monday, June 02, 2008 11:12 PM
> To: heath.frankel at oceaninformatics.com; For openEHR technical
> discussions
> Cc: timothywayne.cook at gmail.com
> Subject: Re: Decision Support was: MIE-2008
> 
> Yes, agree on the querying ... and for querying we need structured
> content!
> 
> As Sam and I noticed before this has to be considered when designing
> archetypes. This doesn't mean there shouldn't be free-text fields,
> this is a very valid requirement in clinical medicine!


[Chunlan Ma] Agree with this requirement. However, we have to be very
careful when we allow free text in archetypes because more free-text fields
would have less control over data quality. Currently, data quality is an
issue and I believe that archetypes will play a very important role in
resolving this issue. However, if we provide more free-text fields than
necessary, then we may loss one of the advantages of using archetypes. Even
though all text fields can be either free-text or coded text, there should
be some rules/guidelines suggesting what kinds of fields can be free-text,
coded-text or both. Whether a text field is defined appropriately should be
assessed during archetype governance process. What I am saying is that
carefully defining a text field is not only for the purpose of DSS, it is
also for data quality control.

Chunlan

> 
> Thus, when designing archtypes the art is to find the balance between
> free-text (max. flexibility) and structured content. In my mind  we
> often have to offer *both* in an archetype. If I want to create a
> local application with lots of DSS I create a template that uses
> mostly the structured parts of the archetype. If I want maximum
> freedom I use mostly the free-text parts.
> 
> Another scenario is that I receive information from another
> archetype-enabled system: The receiving system doesn't know whether
> the sending system had used the archtype in a flexible (free-text) or
> in a structured way. To allow the receiving system to decide whether
> it can use DSS with this information I see two options:
> 1) We have a root archetype that optionally offers both (free-text and
> structured) and we specialise a "DSS optimised" archetype from it. So
> only if the DSS optimised archetype was used, much DSS is can be
> offered.
> 2) Or we create generic archetype design patterns with switch-like
> constructs (i.e. if this option option was chosen I can rely on these
> other attributes to be available as well) so the receiving system's
> DSS engine can do a kind of archetype-introspection to decide what it
> can use and what not.
> 
> Just early thoughts. What do others think?
> 
> 
> On Mon, Jun 2, 2008 at 9:55 AM, Heath Frankel
> <heath.frankel at oceaninformatics.com> wrote:
> > Thilo,
> > I think the key thing that needs to be considered in Archetype design
> to
> > support Decision Support is querying.
> >
> > Heath
> >
> >> -----Original Message-----
> >> From: openehr-technical-bounces at openehr.org [mailto:openehr-
> technical-
> >> bounces at openehr.org] On Behalf Of Thilo Schuler
> >> Sent: Saturday, 31 May 2008 8:13 PM
> >> To: timothywayne.cook at gmail.com; For openEHR technical discussions
> >> Subject: Re: Decision Support was: MIE-2008
> >>
> >> I am also interested. I wonder how much decision support has to be
> >> considered when designing archetypes. In the near and midterm future
> >> decision support will probably mostly happen on a local (i.e.
> >> template) level, but I still assume that there should be design
> >> patterns of the underlying archetypes that make local decision
> support
> >> feasible.
> >>
> >> -Thilo
> >>
> >> On Sat, May 31, 2008 at 1:38 AM, Tim Cook
> <timothywayne.cook at gmail.com>
> > wrote:
> >> >
> >> > On Fri, 2008-05-30 at 15:19 +0100, Sam Heard wrote:
> >> >> I wonder if we should have a particular list for people who are
> > interested
> >> in working with openEHR from a decision support point of view.
> >> >> This may not be appropriate just yet but I believe it will
> generate a
> >> considerably different intellectual space. I wonder what others
> think?
> >> >
> >> > I am certainly interested.  It is the core of my interest semantic
> >> > information management in healthcare and my primary driver for
> being
> >> > involved in the EGADSS project http://egadss.sourceforge.net/
> >> > Though I was out voted by HL7v3 and Arden Syntax MLM proponents so
> I
> >> > left the project.
> >> >
> >> >
> >> >
> >> > --
> >> > Timothy Cook, MSc
> >> > Health Informatics Research & Development Services
> >> > LinkedIn Profile:http://www.linkedin.com/in/timothywaynecook
> >> > Skype ID == timothy.cook
> >> > **************************************************************
> >> > *You may get my Public GPG key from  popular keyservers or   *
> >> > *from this link http://timothywayne.cook.googlepages.com/home*
> >> > **************************************************************
> >> >
> >> > _______________________________________________
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> >> >
> >> >
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