What is a key benefit of using modular architecture in software design?

The key benefit of using modular architecture in software design is improved maintainability and scalability. Modular architecture breaks down a system into smaller, independent components or modules, each with its own specific functionality. This structure allows developers to easily update, replace, or enhance individual modules without affecting the entire system.

When changes or maintenance are needed, a modular approach enables teams to isolate the specific parts that require attention, reducing the risk of introducing bugs or delays due to extensive testing across the entire system. Moreover, as requirements evolve, modules can be scaled independently; additional features can be added or existing ones can be modified with minimal disruption to the overall project.

Overall, the modular architecture promotes a more organized codebase, makes version control easier, and supports collaborative development by allowing different teams to work on separate modules simultaneously.