PowerDesigner provides default model checks to verify the validity of organization units.
| 
                             Check  | 
                        
                             Description and Correction  | 
                    
|---|---|
| 
                             Organization unit name and code uniqueness  | 
                        
                             Organization unit names and codes must be unique in the namespace (model or package). Manual correction: Modify the duplicate name/code Automatic correction: Appends a number to the duplicate name/code  | 
                    
| 
                             Circular dependency  | 
                        
                             The organization unit cannot be parent of itself or parent of another child organization unit. Manual correction: Change the organization unit in the Parent box in the organization unit property sheet Automatic correction: None  |