| 
                                 28% 
             | 
    ↗ | 
                                 40% 
             | 
    CDatabaseModel improved | 
| 
                                 2 
             | 
    ↘ | 
                                 1 
             | 
    CDatabaseModel::getProperties() improved | 
| 
                                 12 
             | 
    ↘ | 
                                 3 
             | 
    CDatabaseModel::setProperties() improved |