What project framework emphasizes paired programming as part of its iterative approach?

The emphasis on paired programming as part of its iterative approach is a fundamental characteristic of Extreme Programming (XP). This agile framework focuses on enhancing software development practices through collaboration, frequent iterations, and continuous feedback. In XP, paired programming involves two developers working together at one workstation; one writes the code while the other reviews each line as it’s written. This practice not only improves code quality but also fosters knowledge sharing and team collaboration, making it a core component of XP's methodology.

Whereas Agile is a broader category encompassing various iterative methodologies, and Waterfall represents a linear and sequential approach to project management, they do not specifically emphasize paired programming as XP does. PRINCE2, on the other hand, is a structured project management method that focuses on processes and deliverables rather than specific programming techniques. Therefore, the unique focus on paired programming clearly identifies Extreme Programming (XP) as the correct choice.