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- The variables IETESTCD, IETEST, IECAT, and IESCAT in the TI domain do not start with the domain code "TI", so would appear to be root variables. However, they are considered to be instantiations of the root variables --TESTCD, --TEST, --CAT, and --SCAT respectively.
- The variable SPEC in RELSPEC does not start with a two-letter domain code (RELSPEC doesn't have a two-letter domain code), but is nevertheless considered to be an instantiation of the root variable --SPEC.
- The variable TAETORD in TA starts with the two-letter domain code, but is nevertheless considered to be an instantiation of the timing variable TAETORD in the general observation classes,
Root Variables vs. Fragments
Some root variable names use fragments which also appear in other variable names. The definition for the root variable that start with two hyphens applies only to variables where the two hyphens are replaced by a two-character domain code. For example, the definition for "--DY" does apply to other SDTM or ADaM variables that end with "DY".
Batch 2
Batch 2 includes variables from all the SDTM v2.0 tables, even though SDTM v2.0 has not yet been released. Variables which were defined in Batch 1 and which do not appear outside the scope of Batch 1 (general observation class variables and Demographics) are not in Batch 2.
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