Object-based Data Model

Object-based models are classified as three categories:

•    Binary model

•    Entity-Relationship model

•    Infological Model

The broadly accepted model is the Entity-Relationship model. It has gained the acceptance as the ideal model for any database design. In 1976 Peter Chen first introduced the Entity-Relationship model. It is stand on a perception of the real world things that represent information. E-R model helps in database design by a better conception and arrangement.  Via  the  E-R  model,  the  application  developer  can  look  forward  to  afoolproof data definition and table design incorporating the real world application functionality completely. The definitions are dealt as follows.