RE: AQL for Decision Support
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Dear Stef, Thank you so much for your email. It helps me to develop some scenarios
to test AQL, especially the queries on episodes. Best regards, Chunlan From:
openehr-decisionsupport-bounces@openehr.org
[mailto:openehr-decisionsupport-bounces@openehr.org] On Behalf Of Stef
Verlinden Dear Chunclan, We've developped a decision (support) system to assess if
somebody with a common complaint should visit his GP or can take care for it
himself ( http://vivici.wordpress.com/2007/10/26/digital-triage-to-discriminate-medical-complaints-for-which-a-general-practitioner-gp-should-be-consulted-from-complaints-for-which-a-self-care-advice-can-be-given/). This system also can be used to support a nurse in making
this decision. The system has several components - Assesment of the current situation: knowledge that need to
be gathered before a (full) conclusion can be made. Only if all the relevant
questions are anserwed a conclusion such as 'self-care advice' can be drawn.
These questions are about the current situation: which complaint, how long,
severity etc. Typically such an assesment takes place at the start of a new
episode: the client/patient wonders if he/she should visit the GP. -History: knowlegde that can/ has to be derived from the EHR
such as actual medication status and disease status/ history before a full
conclusion can be made. A question could be: are A, B or C within the actual
medication. Same for actual episodes: are episode C,D or E within the actual
episodes. More complex questions could be: did episode F took place and was it
closed less than 5 years ago (f.i. suspicion of recurrent cancer) or in case of
suspicion of a diagnose G ('running nose'): did an episode of G occur more than
once in the past 2 years. In that case the work hypothesis running nose could
change to hay fever. - decission rules (The whole system is based on 'telephone
triage guidelines' provided by the Dutch council of GP's) - assesment of the current situation - conclusion/advice Cheers, Stef Op 24-sep-2008, om 2:50 heeft Chunlan Ma het volgende
geschreven:
Dear All, I’d like to this message could kick off the
discussion about
AQL - a common query language - for decision support. Archetype Query Language
(AQL) is a semantic query language. It
is archetype specific, but
neutral to system
design/implementation. It can be used to query archetype-based data at any level of
granularity within a system,
cross system boundaries or enterprise-wide. It can retrieve
all compositions of a particular EHR ,
all compositions specific to archetypes for a single EHR or
across multiple EHRs, or retrieve
entries, clusters, elements or data values etc. AQL is still under
developing. It is
currently used in Ocean
Informatics products/components, e.g. EhrView. Decision-Support systems
need to access to patient data
that is used by clinical
guideline modules or workflow engine. AQL statement can be embedded within or referenced by the clinical guideline modules
(which maybe written in
difference guideline _expression_ languages) or
workflow definition. One
major advantage of using AQL in
decision-support systems is to be
able to make the clinical guideline modules (or workflow
definitions) sharable
among different institutions.
So far, AQL hasn’t
been used by any
decision-support systems yet. I’d
be greatly appreciate
if anyone could help me
to build a set of
questions or requirements
that might be required for decision support against which
AQL can be tested. For instance, what
data is normally required, data format, any arithmetic operators
or functions etc.
Or it is also very helpful if
you could point me some
relevant references, or
authors. The link below is the AQL
specifications. There are some new features not in
the spec yet (e.g. we
have implemented part
of “matches”
operator). If you have
any questions re the spec, please feel free to contact me.
Best regards, Chunlan ---------------------------------------------------------- Dr Chunlan Ma (Med) PhD
(Health Informatics) Software
Architect, Clinical Interoperability t: +61
(0)8 8223 3075 | m: 0405 139 586 f: +61
(0)8 8223 2570 | skype: chunlan_ma Ocean Informatics Pty Ltd Ground
floor, 64 Hindmarsh Square Adelaide
SA 5000 http://www.oceaninformatics.com _______________________________________________ openEHR-decisionsupport mailing list |
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