Conclusions
The use of Scrum with XP engineering practices was found to have a significant impact on the productivity of the project team. We believe that the adoption of either of these methodologies will have a beneficial impact on a project team. We believe that the joint application of these methodologies instills practices and values in management, customers, and development that allow them to create a unified, disciplined team. In our experience, these two practices are complementary; when used together, they can have a significant impact on both the productivity of a team and the quality of its outputs.