| C | ↘ | F | Manager got worse | 
| ⇢ | B | Manager::getByUserName() added | |
| ⇢ | B | Manager::getByUserId() added | |
| ⇢ | A | User::setUserName() added | |
| ⇢ | A | AccountMapper::getByUserName() added | |
| ⇢ | A | User::getUserName() added | |
| ⇢ | A | Account::getUserName() added | |
| ⇢ | A | Account::setUserName() added | |
| ⇢ | A | User::getUserId() added | |
| A | ↘ | B | Database::getUsers() got worse | 
| A | ↘ | B | Database::createUser() got worse | 
| A | ↘ | B | Database::checkPassword() got worse | 
| B | ↗ | A | Manager::get() improved | 
| C | ↘ | D | Manager::createUser() got worse | 
| A | ↛ | Account::setUserId() removed |