in ISO 21090 this represents an real value associated with a UCUM unit as a text string.
Specializes
Attributes
| Name |
Data type |
Occurs |
Description |
|
translation
|
PQR
|
1..1 |
in ISO 21090 the translation attribute specifies a set of equivalent measurements in to non UCUM units (but not between UCUM
units). This "translation" is in fact a prospective transformation. It is possible, as with the generalisation PQV to maintain
a longitudinal record of performed transformations using the source attribute. A prospective translation in PQ has a single
known use case, which is the dual expression of a drug dose in UCUM and DM&D units, which is described in the MiM HL7
data types implementation. For that purpose it is retained. It should not be used for any other purpose unless a clear implementation
guide can be produced.
This is implemented as described in ISO 21090.
|
|
unit
|
UcumUnitOfMeasure
|
0..1 |
Attribute constrained for use within the LRA to UcumUnitOfMeasure. |
Constraints
| Type |
Name |
Specification |
| code is type UcumUnitOfMeasure |
LRA Invariant |
inv: code.oclIsKinfOf(UcumUnitOfMeasure) |
| no translation if null |
Invariant |
inv: isNull implies translation->isEmpty
--context PQ::isDifference(other : QTY): Boolean
-- post: other.oclIsKindOf(PQ) and canonical.units.equals(other.oclAsTypeOf(PQ).canonical.units)
|
| null or value |
Invariant |
inv: isNull xor value.oclIsDefined
-- nullFlavor invariants
|
