Hello,
A very direct question: Why it is not possible to define multiple
constraint bindings for the same archetype node and the same terminology in
AOM/ADL 1.4? I know in AOM/ADL 2.0 the management of these constraints
change completely, but the following is the situation (limitation?) in
existing 1.4.
For a given textual node, it is possible to define multiple term
definitions (atNNNN codes), for example:
DV_CODED_TEXT matches {
defining_code matches {
[local::
at0001,
at0002]
}
}
term_definitions = <
["en"] = <
items = <
["at0001"] = <
text = <"XXXXX">
description = <"*">
>
["at0002"] = <
text = <"YYYYY">
description = <"*">
>
>
>
>
However, it is not possible to define the same using constraint bindings
(acNNNN codes). More precisely, it is only possible to do it if each code
pertains to a different terminology. For example, the following example
would be valid:
DV_CODED_TEXT matches {
defining_code matches {[ac0001]}
}
constraint_definitions = <
["en"] = <
items = <
["ac0001"] = <
text = <"New constraint">
description = <"*">
>
>
>
>
constraint_bindings = <
["BI98"] = <
items = <
["ac0001"] = <terminology:BI98?code=YYYY>
>
>
["AIR93"] = <
items = <
["ac0001"] = <terminology:AIR93?code=XXXX>
>
>
>
But not the following one, the ADL parser and the openEHR Archetype Editor
do not even accept it:
DV_CODED_TEXT matches {
defining_code matches {[ac0001]}
}
constraint_definitions = <
["en"] = <
items = <
["ac0001"] = <
text = <"New constraint">
description = <"*">
>
>
>
>
constraint_bindings = <
["BI98"] = <
items = <
["ac0001"] = <terminology:BI98?code=XXXX>
["ac0001"] = <terminology:BI98?code=YYYY>
>
>
>
Is it mandatory to use predefined subsets to define a coded value set with
multiple values in a constraint binging?
Isn't it reasonable to allow defining coded value sets explicitly at the
archetype level (specially in cases where maybe we only have to define two
or three codes)?
It would be a simple but very convenient patch to add to AOM/ADL 1.4+
before 2.0.
David
--
David Moner Cano
Grupo de Inform?tica Biom?dica - IBIME
Instituto ITACA
http://www.ibime.upv.es
http://www.linkedin.com/in/davidmoner
Universidad Polit?cnica de Valencia (UPV)
Camino de Vera, s/n, Edificio G-8, Acceso B, 3? planta
Valencia - 46022 (Espa?a)
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