Patched classDescriptionForClass: of EOClassDescription
From EOFWiki
Typical Output
2008-01-09 18:59:51.501 MyApp[1328:813] Patched classDescriptionForClass: of EOClassDescription at 0x352ee354 to EOEntityClassDescription's 0x35633814 2008-01-09 18:59:51.509 MyApp[1328:813] Patched classDescriptionForEntityName: of EOClassDescription at 0x352ee354 to EOEntityClassDescription's 0x356339d0
What it means
This output tells you that EOAccess is ready to serve your EOClassDescription needs, that i.e. EOModel is hooked into the EOClassDescription system and available to EOEditingContext and others.
You should not attempt database fetches with an EOEditingContext before this output.