| ERROR | ~S is not a valid derivation of ~S |
| CAUSE | The schema component constraint, Derivation Valid (Restriction, simple), (Restriction, complex) or (Extension), was violated. |
| ACTION | Modify the base type or the derived type definition. |
| ERROR | ~S is not a valid derivation of ~S |
| CAUSE | The schema component constraint, Derivation Valid (Restriction, simple), (Restriction, complex) or (Extension), was violated. |
| ACTION | Modify the base type or the derived type definition. |