| Constraint Name | constraintAuthorPersonAllowed (ERROR) |
| Class of the constraint | Author_XDSDocumentEntry |
| Package | rimihe |
| Description | One instance of the authorPerson sub-attribute is allowed (IHE_ITI_TF_Rev8-0_Vol3_FT_2011-08-19.pdf Table 4.1-5) |
| OCL | self.slot->select(sl : SlotType1 | (not sl.name.oclIsUndefined()) and sl.name = 'authorPerson')->size()=1 |