Description: Logical Data Independence refers to the ability to modify the logical schema of a database without needing to alter the external schema or the application programs that depend on it. This concept is fundamental in database design, as it allows developers and administrators to make changes to the data structure, such as adding or removing fields, without affecting how users interact with the database. This translates into greater flexibility and adaptability, enabling applications to evolve over time without requiring extensive rewrites. In the context of various database systems, where schemas can be more dynamic and less rigid than in traditional relational databases, logical data independence becomes even more relevant. Such systems allow developers to work with semi-structured or unstructured data, facilitating adaptation to changes in business requirements without compromising the integrity of existing applications. This feature is especially valuable in agile environments, where requirements can change rapidly and responsiveness is crucial for project success.
