Fig. 2.

Details of an individual Common Data Element (the summary result of an abdominal CT scan to assess disease). The Value Domain and Concept that this CDE.belongs to are shown on the top right, while the individual Choices in the value domain and the various Classification categories that apply to this element are shown in lists on the lower part of the screen. Note that the names of the Value Domain and the Concept associated with the Data Element are highly similar to that of the element itself (using the string “ABDOMINAL_CT_RESULT”), indicating that they have possibly been algorithmically generated. This follows the requirements that every data element must be associated with a concept as well as a domain: both of these must be created accordingly if they did not exist in the database previously.