Identity in the object model is either a run-time reference or persistent unique ID (termed an OID). In the relational world, primary keys define the uniqueness of a data set in the overall data space ...

Object databases are also suited for applications that are not necessarily based on an object model, but use a large number of in-memory indexes that are difficult to store in a relational database.

In addition, PowerDesigner supports virtually every notation available, including the popular UML and IDEF1X notations.Heck, PowerDesigner even supports CODASYL, a notation that I used when I started ...

Data modeling is the process of defining datapoints and struc­tures at a detailed or abstract level to communicate information about the data shape, content, and relationships to target audiences.

See object-oriented DBMS. OOP Traditional Programming class define data + processing object data + processing attribute data ... Relational vs. Object Modeling Instead of separate employee, ...

When normalizing data structures, attributes congregate around the business keys that identify the grain at which those attributes derive their values. Attributes directly related to a person, ...