What does the Third Normal Form (3NF) specifically address?

The Third Normal Form (3NF) specifically addresses the concept of data redundancy by ensuring that every non-key attribute is only dependent on the primary key. In 3NF, a table must first be in the Second Normal Form (2NF) and then all the attributes must be functionally dependent only on the primary key, thus eliminating any transitive dependencies.

Transitive dependency occurs when a non-key attribute depends on another non-key attribute rather than directly on the primary key. By eliminating these dependencies, 3NF helps to reduce data anomalies and redundancy, leading to a more efficient and well-structured database. This means that its primary focus is maintaining the integrity of the data without duplicating information unnecessarily, which improves data management and accuracy.

In this context, while field definitions, column relationships, and data security are essential aspects of database design and management, they do not capture the primary focus of 3NF, which is fundamentally concerned with ensuring that the data is organized to minimize redundancy and dependency issues.