1. One way an applicant may choose to differentiate different types of products, (e.g., study product, comparator product) is to use DACAT.
  2. DAREFID and DASPID are both available for capturing label information.
  3. Any Identifiers, Timing variables, or Findings general observation class qualifiers may be added to the DA domain, but the following Qualifiers would not generally be used in DA: --MODIFY, --POS, --BODSYS, --ORNRLO, --ORNRHI, --STNRLO, --STNRHI, --STNRC, --NRIND, --RESCAT, --XFN, --NAM, --LOINC, --SPEC, --SPCCND, --METHOD, --BLFL, --FAST, --DRVFL, --TOX, --TOXGR, --SEV.