Is there a tool in ArcGIS ModelBuilder which can validate a personal geodatabase and an XML schema to give out an report saying if the gdb is validated or not?
There seems to be a method to use X-Ray for ArcCatalog to do what you want.
It is not something that I have used personally so I am going on information in a GeoNet thread that says:
I would suggest you use X-Ray to validate your XML workspace before attempting to import it. You'll find the Validate tool under theTools dropdown. The validate tool will check your XML workspace document and give you a report of the errors.