// Validator: http://yuml.me/b6df7b4a

// Relationship
[Validator]<>-0..*>[ModelValidator]
[Validator]-throws->[InvalidModelException]
[ModelValidator]<>-0..*>[Constraint]
[ModelValidator]-returns->[ViolationCollection]
[ViolationCollection]<>-0..*>[Violation]
[Constraint]->[Violation]
