PROC CDISC performs
the following checks on domain content:
-
Verifies that all required variables
are in the SAS data set.
-
Reports as an error any variables
in the SAS data set that are not defined in the domain. Compared to
CDISC SDS version 2.
x, CDISC
SDTM version 3.1 has more restrictions.
-
Reports a warning for any expected
domain variables that are not in the SAS data set. Compared to CDISC
SDS version 2.
x, CDISC SDTM
version 3.1 has more required domain variables.
-
Notes any permitted domain variables
that are not in the SAS data set. PROC CDISC finds general omissions,
but it is up to the site administrator to determine whether the omissions
are appropriate.
-
Verifies that all domain variables
are of the expected data type and proper length. For example, the
validation reports if the SAS data set has SAS date and time variables
that require ISO 8601 expansion.
-
Detects any domain variables that
are assigned a controlled terminology specification by the domain
and do not have a SAS format assigned to them. Only an assigned format
is required.
PROC CDISC also performs
the following checks on domain content on a per-observation basis:
-
Verifies that all required variable
fields do not contain missing values.
-
Detects occurrences of expected
variable fields that contain missing values.
-
Detects the conformance of all
ISO 8601 assigned values, including date, time, datetime, duration,
and interval types.
-
Notes correctness of YES or NO
and YES, NO, or NULL responses.
With the exception of
YES or NO and YES, NO, or NULL content, PROC CDISC does not validate
the content of controlled terminology against a list of acceptable
values.