Archetype rules (invariants) in openEHR RM?

2002-12-03 Thread Thomas Beale


Dario Liberman wrote:

Well,

In this case, I recommend to add a kind of actor, that may be de aggregation
of other actors. The administrator may decide which capabilities or roles
this new actor may have, since it doesn't necessarily need to have anything
in common with the aggregation of the capabilities of each of the actors it
aggregates.

I have added this to a list of change requests, but there is more 
thinking to be done - we may need to differentiate between workgroups 
which exist in and of themselves, e.g. cardiology team (?), versus 
groups which are formed around a patient, e.g. a diabetic care team, 
which is a particualr grouping of people likely to exist only for a 
particular patient (i.e. they are not constituted as any formal team). 
Would the latter be identified as a group? Where?

We have the concept of PARTY, ACTOR etc in the demographic model for 
things which exist regardless of context, and PARTICIPATION for 
context-specific participations of PARTYs in activities around the patient.

- thomas beale



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Archetype rules (invariants) in openEHR RM?

2002-11-29 Thread Sam Heard

Tom

I think work Unit or Work Group is important as long as it is linked to an
organisation - a person might work on a ward, an outpatient department and
in the cardiology team.

As far as the referral is concerned - it could be to a work unit if that is
available and has a system for dealing with referrals. Clearly an
institution would limit the parties that will accept referrals.

Cheers, Sam

 -Original Message-
 From: owner-openehr-technical at openehr.org
 [mailto:owner-openehr-technical at openehr.org]On Behalf Of Thomas Beale
 Sent: Thursday, 28 November 2002 10:34 PM
 To: openehr-technical at openehr.org
 Subject: Re: Archetype rules (invariants) in openEHR RM?




 Ahmad Risk wrote:

 
 Please let me enetr this dialogue.  In the UK, a GP might refer a
 patient to a named Cardiologist.  However, that referral, upon arrival
 at the hospital, might be handled by the Cardiology Team of that
 cardiologist.  One might argue here that the 'team' is really a
 department, albeit, a unit within the Cardiology department.
 
 Equally, the referral from the originating GP could be directed at the
 cardilogy department without specifying the named provider.
 
 there are two questions here:

 a) who is delivering the care - in this case, it seems to be the team.
 b) who is legally responsible for the care, which as far as I know, must
 always be an individual, or a registered health care provider.

 Both of these potentially need to be recorded. If we want to identify
 teams or departments, we may need a new kind of party, or else we
 generalise the notion of ORGANISATION to something like GROUP, where a
 group just means more than 1 person with a common purpose - or something
 in common - what would it be, in general?

 thoughts?

 - thomas beale


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Archetype rules (invariants) in openEHR RM?

2002-11-28 Thread Thomas Beale


Dario Liberman wrote:

Hello!

Nice site redesign you have got at openEHR.org :-)


I have taken a look at the Demographic R.M. 1.2
I was wondering if it a Party may be also a team or group of people.

currently a PARTY can be an ACTOR - viz PERSON, ORGANISATION, or AGENT, 
or else it is a ROLE. I have thought a little bit about teams etc, but 
have not investigated the use cases. In mosts cases medico-legally it is 
required that an individual be identified in any health activity.

This demographic model is in its early stages, and we expect that it 
will need some changes to allow for a general typology of PARTYs.

For example:
Lets say that a clinician working at a given institution wants to prescribe
the patient to have an interview with the group-Nuero-5 ( one of the groups
of neurologists that analyze the need of internment), he may have a kind of
contact search engine in which he finds parties, in this case not a person
or organization but a group of people called 'group-Neuro-5'.

If not, how does this example fit into the picture?

Hm - currently in all the situations we know of (e.g. Australia, 
sitautions in Europe to my knowledge, north america) - the identified 
party would have to be a registered provider - either they are a GP or 
else it is an organisation such as a clinic or hospital. How do
you see a group of neurologists which is not a provider organisation - 
can you describe what its status in the health system is in more detail?

- thomas beale



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Archetype rules (invariants) in openEHR RM?

2002-11-27 Thread Dario Liberman
Hello!

Nice site redesign you have got at openEHR.org :-)


I have taken a look at the Demographic R.M. 1.2
I was wondering if it a Party may be also a team or group of people.

For example:
Lets say that a clinician working at a given institution wants to prescribe
the patient to have an interview with the group-Nuero-5 ( one of the groups
of neurologists that analyze the need of internment), he may have a kind of
contact search engine in which he finds parties, in this case not a person
or organization but a group of people called 'group-Neuro-5'.

If not, how does this example fit into the picture?

Thanks,
Dario Liberman.
liberman at ineba.net



- Original Message -
From: Thomas Beale tho...@deepthought.com.au
To: Dario Liberman liberman at ineba.net
Sent: Tuesday, November 26, 2002 22:21
Subject: Re: Archetype rules (invariants) in openEHR RM?




 Dear Dario,

 the new openEHR site is online at http://www.openEHR.org. If you join
 and subscribe to the lists, you will be kept up to date on all openEHR
 acitivities, which have taken over from GEHR. This is where we want to
 get discussions going on technical and clinical aspects of archetypes,
 uses of Galen and so on. We hope you will contribute.

 regards,

 - thomas beale


 Dario Liberman wrote:

 Hello Thomas,
 
 After reading the pdf you suggested (section 6) I asked myself if you
think
 there can be any way to use OpenGalen server for the concepts being
 represented by the arquetypes in an integrated fashion, so to achieve a
 strong interrelationship between arquetypes, having then, even more power
of
 dynamism than with general object oriented polymorphism mechanics.
 I say OpenGalen, but you can choose any thesaurus server of concepts
 interrelated by means of a Description Logic model.
 
 Best regards,
 Dario Liberman.
 
 PD: Of course, in order to be willing to achieve such a thing, instead of
 'chaining by archetype id' we should be 'chaining by concept id' having
the
 archetypes be individuals giving a representation for instantiating the
 concept.
 
 
 
 - Original Message -
 From: Thomas Beale thomas at deepthought.com.au
 To: Gavin Brelstaff gjb at crs4.it
 Cc: openehr-technical at openehr.org
 Sent: Tuesday, September 24, 2002 20:40
 Subject: Re: Archetype rules (invariants) in openEHR RM?
 
 
 
 Gavin Brelstaff wrote:
 
 How do we generate archetype rules to provide constraints
 internally within archetypes.
 We would like to use such rules to constrain data at it's point of
 entry on the client.  We already generate handler code (in Javascript)
 to ensure the data-type and range constraints are valid.
 
 what we did in the Eiffel implementation of GEHR was:
 
 - when an XML archetype is read from the database, it is turned into
 Eiffel objects.
 
 - for information creation, the archetype in memory has its
 create_default() routine called; this creates an initial data instance
 (say of a blood pressure of whatever). Each part of such an instance
 (which is of course a network of instances) is connected to a relevant
 part of the archetype (also a network of instances in memory)
 
 - Data modification commences by the users on the data instances, with
 each routine which causes a change calling a a corresponding validating
 routine on the archetype. If this routine returns true, the modification
 is allowed; else it returns false, with an error message whcih can be
 used on the screen (e.g. systolic blood pressue must be between 0 and
 
 500).
 
 - Changes proceed in this fashion until the user is satisfied and hits
 the commit button, which writes the information to the db.
 
 A detailed explanation of what happens is given at:

http://www.gehr.org/technical/kernel_architecture/kernel_architecture.html
 (see section 6 of the documents).
 
 In openEHR, we will do the same thing (in variaous languages - not jsut
 Eiffel) but it will be more systematic.
 
 hope this helps,
 
 - thomas beale
 
 
 I can find no mention of any archetype rules in the openEHR
 Reference Model nor in the Design Principles document.
 In fact, all I can now find is the example of an
 invariant on page 25 of Thomas Beale's Archetypes report
 (I've the version issued 21 /Aug/01).
 
 Am I missing something obvious or have archetype rules been
 omitted, delayed from consideration?  If so why?
 
 
 I do hope you can help.
 
 
 --
 ..
 Deep Thought Informatics Pty Ltd
 
 mailto:thomas at deepthought.com.au
 openEHR - http://www.openEHR.org
 openEHR drafts -
http://www.deepthought.com.au/health/openEHR/openEHR.html
 Archetype Methodology - http://www.deepthought.com.au/it/archetypes.html
 Community Informatics -
 
 http://www.deepthought.com.au/ci/rii/Output/mainTOC.html
 
 ..
 
 
 
 -
 If you have any questions about using this list,
 please send a message to d.lloyd at openehr.org

Archetype rules (invariants) in openEHR RM?

2002-09-25 Thread Thomas Beale


Gavin Brelstaff wrote:

How do we generate archetype rules to provide constraints
internally within archetypes.
We would like to use such rules to constrain data at it's point of
entry on the client.  We already generate handler code (in Javascript)
to ensure the data-type and range constraints are valid.

what we did in the Eiffel implementation of GEHR was:

- when an XML archetype is read from the database, it is turned into 
Eiffel objects.

- for information creation, the archetype in memory has its 
create_default() routine called; this creates an initial data instance 
(say of a blood pressure of whatever). Each part of such an instance 
(which is of course a network of instances) is connected to a relevant 
part of the archetype (also a network of instances in memory)

- Data modification commences by the users on the data instances, with 
each routine which causes a change calling a a corresponding validating 
routine on the archetype. If this routine returns true, the modification 
is allowed; else it returns false, with an error message whcih can be 
used on the screen (e.g. systolic blood pressue must be between 0 and 500).

- Changes proceed in this fashion until the user is satisfied and hits 
the commit button, which writes the information to the db.

A detailed explanation of what happens is given at: 
http://www.gehr.org/technical/kernel_architecture/kernel_architecture.html 
(see section 6 of the documents).

In openEHR, we will do the same thing (in variaous languages - not jsut 
Eiffel) but it will be more systematic.

hope this helps,

- thomas beale



I can find no mention of any archetype rules in the openEHR
Reference Model nor in the Design Principles document.
In fact, all I can now find is the example of an
invariant on page 25 of Thomas Beale's Archetypes report 
(I've the version issued 21 /Aug/01).

Am I missing something obvious or have archetype rules been
omitted, delayed from consideration?  If so why?


I do hope you can help.



-- 
..
Deep Thought Informatics Pty Ltd  

mailto:thomas at deepthought.com.au
openEHR - http://www.openEHR.org
openEHR drafts - http://www.deepthought.com.au/health/openEHR/openEHR.html
Archetype Methodology - http://www.deepthought.com.au/it/archetypes.html

Community Informatics - http://www.deepthought.com.au/ci/rii/Output/mainTOC.html
..



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If you have any questions about using this list,
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