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| Attribute | Schema Datatype or Enumeration | Usage | Definition | Business Requirements |
|---|---|---|---|---|
| Path | text | Required | Provides the machine-executable instruction or template for it to obtain the data or information from the resource. | The value of the Path attribute can either be an absolute path, or a relative path starting from the information in the "Name" and "Attribute" attributes of the parent Resource element. |
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The Path attribute provides the machine-executable instruction or template for it to obtain the data or information from the resource. Depending on the representation of the resource, this can e.g. be an XPath expression (for e.g. ODM, HL7-CDA or HL7-FHIR represented as XML), a JSONPath expression when the resource is represented as JSON, a FHIRPath expression for the case of HL7-FHIR.
The value of the Path attribute can either be an absolute path, or a relative path starting from the information in the "Name" and "Attribute" attributes of the parent Resource element.
Questions?: Does the Resource/Type specify the language for the "Path" expression or should there be a "language" attribute too?
Examples:
ODM Path (absolute path): /ODM/ClinicalData[@StudyOID="AnotherStudy"][@MetaDataVersionOID="MV.001]//ItemData[@ItemOID="IT.BIRTHDATE"}/@Value
leads to the birth date for the given subject as captured in study with OID "AnotherStudy" and MetaDataVersion with OID "MV.001"
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