| OODBMS | RDBMS |
| Stores data and methods | Stores only data |
| Main objective data encapsulation and data independence | Main objective data independence |
| Classes can be reorganized without affecting the mode of using them. | Data can be reorganized without affecting the mode of using them. |
| here objects are active | Here data are passive |
| Here structure of data is complex, for different types of data | Here structure of data is simple, (row, column,table) , for different types of data. |
| Data can be chained together | Data is separated in different tables/ relations |
| Encapsulation, inheritance is used for data redundancy | Normalization is used for data redundancy |
