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Structural Flexibility

While relational databases easily provide one-to-many and many-to-one relationships, object databases allow for many-to-many relationships. Information systems that require complex relationships can store their data in an object database with greater ease than a relational database.

Object Modeling

When information systems are modeled as objects, they can employ the powerful inheritance capability. Instead of building a table of employees with department and job information in separate tables, the type of employee is modeled. The employee class contains the data and the processing for all employees. Each subclass (manager, secretary, etc.) contains the data and processing unique to that person's job. Changes can be made globally or individually by modifying the class in question.

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