@drothenberg commented on Tue Jul 09 2013
Presently several datatypes such as version, IPv4, and evr_string represent structured information, yet are defined in the OVAL Schema as restricted to any string value. This would imply an IPv4 address of "one.two.three.four" is schema valid, despite its contradiction to the OVAL Specification.
There is an option to catch these errors earlier with the use of pattern matching for simpler formatted datatypes.
@djhaynes commented on Wed Sep 25 2013
This has been deferred to OVAL 5.11 Draft 3.
@solind commented on Tue Aug 30 2016
Deferring to 5.12