| Attribute | Schema Type or Enumeration Values | Usage | Definition | Business Rules |
|---|---|---|---|---|
| ItemOID | oidref | Required | Reference to an ItemDef in the MetaDataVersion identified in the ClinicalData element. | |
| TransactionType | (Insert | Update | Remove | Upsert | Context) | Conditional | Records the TransactionType for this ItemData instance in the source system. | The TransactionType attribute must be provided on the ItemData or one of it's anscestor elements when the ODM/@FileType has the value 'Transactional'. |
| IsNull | (Yes) | Conditonal | IsNull is a flag to signify that an item's value is to be set to null. If the Value attribute is set, IsNull must not be set. If IsNull is set, the Value attribute msut not be present. In the interest of creating non-verbose XML instances, one should not use ItemData elements with IsNull set to "Yes" to indicate uncollected data. The better practice is to transmit only collected data. | It is not necessary to provide an ItemData element with IsNull set to "Yes" in cases where the source system would not created a record. For use cases where data traceability is important, providing ItemData elements wiht IsNull="Yes" maybe be useful. |
Contained in:
The ItemData element is used for transmission of the clinical data for an item. The model does not support repeating items within a single item group.
The ItemOID is used to identify a particular item definition. This value uniquely identifies an Item within the containing ItemGroup.
The referenced ItemDef defines the DataType of this item. The Value attribute string must obey the rules for that format of data listed in the Data Formats section. For text, string, integer or float datatypes, it must be possible to store the item value within the Length constraint defined in the ItemDef.