A unique set of data elements, and/or a different set of FTRs make one
external inquiry unique
or different from other external inquiry. That is, one of the
following must be true:
- Unique or different set of data elements
- Unique or different set of FTRs
- Unique processing logic
Sorting does not make on external inquiry unique from another
since the data elements and FTR’s are the same.
An external inquiry
cannot have calculated values or derived
data
. This characteristic distinguishes an external inquiry from an
external output.