schema validation problem re-post

Thanks to George and Henry for replying to the previous post.

I apologize for the schema file attachment, It appears it didn't come 
through correctly.
Here is a link to it on the web.
http://www.qml-org.com/QML_eng/versions_e.htm

In addition to the previously listed validators, I also checked the schema 
against
the online XSV 2.5-2 which checked out OK.
and <oXygen/> XML which also reported:
"E derivation-ok-restriction.2.1.2: Error for type 'DefectType_Type'.  The 
attribute use 'k2004' in this type has type 'null', which is not validly 
derived from 'null', the type of the matching attribute use in the base 
type." etc....

Are there different interpretations of the standard or do some validators 
not check everything?
I just need some professional opinions.

Thanks again for all your help.

Carl B. Marcum
Sr. Gage Engineer
Precision Gage & Tool Co.
Ph. (937) 866-9666
Fax (937) 866-9661
e-mail carl-m@pgtgage.com