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# Advantages of the TopLink Metadata Architecture

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The TopLink metadata architecture provides many important benefits, including the following:

- Stores mapping information in XML descriptors–not in the domain model objects

- By using the metadata, TopLink does not intrude in the object model or the database schema

- Allows you to design the object model as needed, without forcing any specific design

- Allows DBAs to design the database as needed, without forcing any specific design

- Does not rely on code-generation (which can cause serious design, implementation, and maintenance issues)

- Is unintrusive: adapts to the object model and database schema, rather than requiring you to design their object model or database schema to suit TopLink