Antw: Re: EHRcom/openEHR the new exciting paradigm

2006-09-17 Thread Gavin Brelstaff
As an unqualified lurker in these groups I must say I was v. impressed
by the breadth and depth of knowledge of HL7 that Thomas Beale has shown
in these recent discussions - it gives me even more confidence
in the principled basis behind openEHR and the openess of the openEHR
people in their responses.
my2cents
\Gavin Brelstaff CRS4 Italy

William E Hammond wrote:
> Gerard,
> 
> I am amazed at the comments to your collegue.  We are making great strides 
> in bringing ISO/CEN/HL7 together with the potential of taking a step 
> beyond even harmonization.  I am in favor of pro and con discussion.  As I 
> read your earlier mail, I interpret those remarks as saying we don't need 
> HL& and don't even look at HL7.  
> 




{Fraud?} {Disarmed} ADLv1.3 Archetypes for demographic and EHR

2006-09-17 Thread minreddy minreddy
Hi
 
 I was just thinking to use some ADLv1.3 archetype files with java ADL parser.
 Could anybody give a pointer to  ADLv1.3 archetypes?
 I could only find ADLv1.4 files here.http://my.openehr.org/wsvn/knowledge/
 
 rgds
 minreddy




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Latest openEHR Architectural Overview

2006-09-17 Thread minreddy minreddy
Hi Thomas

I'm newbie to openEHR. 

My few cents to the Architecture document.

Would it be possible to have visualization of  runtime usecase scenarios
which would include 
1)  adding new archetypes & templates  to the system( parsing-storing to 
repository.)
2) how a template is used in the system, for example when an observation event 
happens.



rgds
minreddy

Thomas Beale  wrote: 
The openEHR Architectural Overview - the key technical document of 
openEHR - continues to benefit from community feedback. The latest 
version is at 
http://svn.openehr.org/specification/BRANCHES/Release-1.1-candidate/publishing/architecture/overview.pdf
 


If you have not downloaded a copy of this document for a few weeks, the 
new version is likely to be substantially better.

Please keep the feedback coming...

- thomas beale

-- 
___
CTO Ocean Informatics (http://www.OceanInformatics.biz)
Research Fellow, University College London (http://www.chime.ucl.ac.uk)
Chair Architectural Review Board, openEHR (http://www.openEHR.org)





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Antw: Re: Antw: Re: EHRcom/openEHR the new exciting paradigm

2006-09-17 Thread williamtfgoos...@cs.com
In een bericht met de datum 15-9-2006 22:21:23 West-Europa (zomertijd), 
schrijft gfrer at luna.nl:

snip snip: 

> 
> 
> I agree.
> There is only one patient, with one  problem that needs our unified 
> attention and devotion.
> So we have to co-operate.
> But we have to continue to discuss and provide arguments and listen to the 
> arguments given.
> Instead of attacking persons, as I have been able to observe several times 
> it to happen in the Netherlands.
> 
> 
> Lets start the real debate.
> Patients and healthcare providers need real solutions that empower them.
> 
> 
> Gerard
> 


I agree with several comments on HL7 v3, there are solutions for that 
underway.
I agree that CEN 13606 / Open EHR and HL7 v3 have their advantages and 
disadvantages.

I agree that we can work together
I agree that there is a lot to be done
I agree that both approaches have led to implementations and also to the 
determination of problems in the technological approach. 

I disagree that we should discuss this from a view point of superiority of 
one approach against the other. That is the WW 1 approach.
That WW1 'for or against' approach will not lead to working solutions.

My comments are based on believing that your points 1-6 are sensible to 
discuss and find solutions.

Your comment 7 is not useful and I would suggest you to refrain from the pro 
- con discussion. 

For the one patient with always more problems (there is no situation in 
health care where a patient has only one problem, he might have one disease, 
but 
that will always have more than one interelated problems) that need our 
dispersed attention to tackle this in a holistic way. 

So the 'standard' approach is:

one patient with 
one or more diseases
and none to many associated problems / complaints
and none to many associated nursing diagnoses / allied health problems
and one to many activities for the disease (s)
and one to many activities for the associated problems (the minimum, so 
always one has to be there is to monitor the onset of a potential problem)
and one to many activities for the associated nursing diagnoses / allied 
health problems. 

Definitely this is is with respect to workflow a difficult non-linear process 
of care delivery and of changes of the disease(s) and the different problem 
situations. 
Thus we need to be able to have a system that can track what these changes 
are, and what the status of this set of mixed activities is. We must also be 
able to exchange this in the multitude of systems available in health care that 
will last for several decades. 

I am pretty sure that I can deal with these complex situations in HL7 v3 
speak. I have not seen examples of these complex care situations in 13606 speak 
since that is missing examples from health care with this respect. 

Perhaps we need to work more from the clincial perspective and determine the 
requirements and from there to the technical bits. 

William



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Antw: Re: Antw: Re: EHRcom/openEHR the new exciting paradigm

2006-09-17 Thread williamtfgoos...@cs.com
In een bericht met de datum 15-9-2006 23:15:45 West-Europa (zomertijd), 
schrijft randy.neall at veriquant.com:


>  
> Since I'm not sufficiently acquainted with all the details of either system 
> I could not follow each nuance of the argument. But among the things I'm 
> taking away from this is that HL7 involves a complex and ever-changing schema 
> at 
> the DB storage level, something that worries me. I did not hear a rebuttal of 
> this point from the HL7 side. 
> 


I am not a specialist on this, but I believe it is possible to have a quite 
simple DB schema based on HL7 v3. 

Difficult parts include the Entity parts (person, patient, organisation) 
because the entries in fields will change for some and not for other (e.g. 
changing addresses, phones etc. 

relationships between entities are handled via roles: that is not changing.

participation from a role in activities are not changing. Of course there are 
different kinds of participation that change, but that is doable with coding

then there are acts that have relationships with other acts, identifiers, 
moodcode and status codes, as are codes, times and where the act is an 
observation: there is a value.

These parts of the RIM and D-MIMs have been stable for quite a while. 

Key of Act storage is to store the code for the act, the time, the author 
(via participation / role relationships), the mood (request, promise plan, 
carried out) and the status (activive, obsolete, competed).

These things have not changed in principle.

However, the D-MIMs derived from RIM have changed in those domains where 
development is ongoing. For some implementers it means for instance that the 
condition class cannot be used anymore. Instead we work with a problem list 
allowing activities to be associated on problem level and not on 'condition' 
level. 
Condition is changed to an observation.

Part of this is because not all components of the HL7 v3 standard are ready 
now. Early implementers of work in progress thus will face changes that affect 
their developments.
For the Netherlands national ICT project we include the industry in the work 
in progress and discuss this situation with them before starting and during 
development and balloting of standards. 

To prevent too many changes we have now the draft standard for trial use DSTU 
that allows a couple of years fixation of the standard, testing, finding out 
the problems, revising and then develop the final standard and ballot that.

William Goossen 
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No religion, but discussion based on argumentation, dealing with the real issues

2006-09-17 Thread williamtfgoos...@cs.com
, and includes the particularities of the 13606, ensuring eventually, 
after careful and scientificall sound testing, that those who apply 13606 / 
OpenEHR in their record system can realise semantic interoperability with those 
that build their systems on HL7 v3 / Care Provision or similar approaches. Of 
course doing things directly is easier, and of course this will still cause a 
lot 
of troubles, and there comes the scientific debate on how to solve them.  Now 
to my knowledge four systems based on HL7 v3 design are working in the 
practice arena, and to my knowledge three are in a far stage of development. 
Here I 
do not refer to the around fifty systems currently able to do the v3 
messaging, but systems able to develop a record based on these principles. 

Another very harmonized approach is the work to develop care information 
models / clinical templates / archetypes / HL7 v3 templates/ OpenEHR templates 
/ 
GPIC content / detailed clinical models. 
There is general agreement among CEN 13606 / Open EHR and HL7 v3 developers 
that the difficulty lies in the clinical detail, that vocabularies play a role 
here, that this can be sorted out and synthesised, that a more or less 
agnostic from technology model can be determined, and that the implementation 
into 
any technology is more difficult than implementing or transforming from one 
technology to another. 

A third area of harmonization is in the tooling. Where the agnostic modelling 
approach is far underway. One example is using the OpenEHR archetype editor 
to express the clinical content agnostically. Then I could make my care 
information models in such a way that they automatically transform to HL7 v3 
message 
content. Of course the same clinical material would transform to an OpenEHR 
archetype, thus making the hard effort of sorting out the clinical stuff more 
cost effective and more worthwile. This can simply be achieve via adding / 
adjusting existing features of the archetype editor. The template editor could 
help 
us combining archetypes / R-MIM structures into larger components for EHR or 
message. E.g. from temperature, heartrate etc to vital signs panel, and 
combining this with other physical measures to a full physical exam / 
assessment. 
Then the next work underway is the transformations between technology a 
versus b versus c. I have not understood all details of the discussion between 
Grahame and Thomas, but I am sure that we are addressing real world problems 
with 
this work of making health information available to those with a need to know, 
and not some fanatisms belief. This might be not scientific, but at a certain 
point science tells me I have to stop being an expert because of limitations 
in knowledge and let the real experts in an area sort it out. For me the real 
techy stuff is the limit of doing science, and more the area of applying 
science that others develop. I see useful science going on on both sides. 

I fourth area of harmonisation is on the datatypes. I understood from a 
recent report of the ISO chair prof Kwak that this work is progressing. This 
means 
harmonization of CEN / HL7 / ISO work, allowing the science of medicine to 
express its data in different types necessary for practice and research, to 
store 
it and to exchange it independend of technology approach. Yes, there is work 
to be done, it is difficult, it is not finished, it is not a religion.  

In my opinion discussions on such harmonisation matters, with all pro's and 
con's, are useful and indeed a scientific debate. In my opinion shouting at 
everybody that "some standard 13XXX is the best" might relate to fanatism. I 
have 
never told anyone that there is one best standard, in contrary, I take a very 
eclectic approach, see for example: Goossen W (2006). Representing clinical 
information in EHR and message standards: analyzing, modelling, implementing. 
HINZ Primary Care and Beyond: Building the e-Bridge to Integrated Care. Eds: 
Christopher Peck & Jim Warren.  Publisher: Health Informatics New Zealand 
(HINZ) 
& Health Informatics Society of Australia Ltd (HISA)/ISBN 0 9751013 7 4// ? 
The author(s) & HINZ All rights reserved. 

Thus, I would declare your mission to throw away HL7 as religious fanatism. 
:-) 

So again, thank you very much for pointing this out. 


William



PS, on my behalf with defending my position here the debate on fanatism is 
closed, I will only reply to real harmonization work. 










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