Why is documentation important in software development?

Documentation plays a vital role in software development, primarily because it explains how the system works and aids in maintenance. Well-structured documentation provides developers with a thorough understanding of the system's architecture, functionality, and design choices. This clarity is essential when new developers join a project or when existing developers return to the code after a time away.

Moreover, comprehensive documentation helps in identifying areas of the code that may require updates or fixes, streamlining the troubleshooting process. This can lead to enhanced collaboration among team members, as everyone has access to the same knowledge base regarding system operations and design parameters. Proper documentation supports effective maintenance strategies, ensuring that software remains functional and up-to-date as requirements evolve.

Regarding the other options, while they touch on aspects of software development, they do not encapsulate the core purpose of documentation as effectively as the correct option. For example, while documentation may facilitate simpler user installations, that is not its primary function. Similarly, it does not remove the need for testing or ensure user feedback, which involves direct interactions with the software rather than the documentation itself.