What is improved as a result of successful application of Lean Six Sigma principles?

Successful application of Lean Six Sigma principles leads to significant improvements in efficiency in process management. Lean Six Sigma focuses on reducing waste and variation in processes, which directly impacts the speed and quality of project delivery. By applying these principles, organizations can streamline their operations, identify inefficiencies, and implement changes that enhance productivity. This results in smoother workflows, reduced cycle times, and better resource utilization, ultimately leading to greater efficiency across various processes.

The other options do not align with the primary objectives of Lean Six Sigma. While project documentation and staff training programs may improve as a byproduct, they are not the central aim of implementing Lean Six Sigma. Increased project costs contradict the fundamental goal of Lean Six Sigma, which is to reduce waste and costs while enhancing value.