Two-character abbreviation for the domain of the parent record(s).
Req
USUBJID
Unique Subject Identifier
Char
Unique Subject Identifier of the Parent record(s). Either USUBJID or POOLID must be populated, except for certain domain-to-domain relationships (see Section 8.2.3).
Exp
POOLID
Pool Identifier
Char
Pool Identifier of the Parent record(s). If POOLID is entered, POOLDEF records must exist for each subject and the USUBJID must be null. Either USUBJID or POOLID must be populated.
Perm
IDVAR
Identifying Variable
Char
Name of the identifying variable in the general observation class domain that identifies the related record(s). Examples include BWSEQ and BWGRPID.
Req
IDVARVAL
Identifying Variable Value
Char
Value of identifying variable described in IDVAR. For example, if BWSEQ is the variable being used to describe this record, then the value of BWSEQ would be entered here.
Identifies the hierarchical level of the records in the relationship. Values are only necessary when identifying a relationship between domains (as described in Section 8.4). Values should be either ONE or MANY.
Perm
RELID
Relationship Identifier
Char
Unique value within a study that identifies the relationship. RELID can be any value the sponsor chooses and is only meaningful within the df dataset to identify the related/associated domain records.