The Common Base Event provides several methods for including this additional data, including extending the Common Base Event schema or supplying one or more ExtendedDataElement elements within the Common Base Event, which is the preferred approach.
The base information that is included in a Common Base Event might not be sufficient to represent all of the information captured by a component when creating a problem determination event.
Use an ExtendedDataElement
element to represent a single data item. A Common Base Event can contain more
than one of these elements, essentially one for each additional data item.
A hint to the number and type of ExtendedDataElement elements is supplied
by the extensionName value, but this information is only a hint. The usage
of the attributes in the ExtendedDataElement element for problem determination
events is the same as those for any other Common Base Event.