What is a key advantage of pair programming?

The key advantage of pair programming lies in its ability to enhance the quality of the code produced. This practice involves two developers working together at one workstation, where one writes code while the other reviews each line as it's written. This real-time code review process not only allows for immediate feedback and the identification of potential issues but also fosters a collaborative environment where knowledge sharing takes place.

By engaging in continuous dialogue and collaboration, pairs are better positioned to catch bugs early, enforce coding standards, and improve overall design quality. This leads to a more robust final product, as the combined skills and perspectives of two developers contribute to a higher standard of code quality than might be achieved individually.

While aspects like increased team morale, faster story completion, and improved individual skills are also benefits of pair programming, the primary focus on quality through immediate peer review makes this option particularly significant in the context of agile practices.