A Framework for the Use of Six Sigma Tools in PSP/TSP

The advent of software process models such as CMM/CMMI (Capability Maturity Model/Capability Maturity Model Integration) has helped software engineers understand principles and approaches of software process improvement. There, however, has been difficulty increasing productivity from applying those models since "how " is not within the scope of the CMM/CMMI. For this reason, SEI (Software Engineering Institute) introduced PSP/TSP (Personal Software Process/Team Software Process); however, they still lack statistical analysis tools and systematic process control techniques for analyzing measures collected in PSP/TSP. Six Sigma, on the other hand, provides the quantitative analysis tools necessary to identify high leverage activities, control process performance and evaluate effectiveness of process changes. Deploying PSP/TSP in conjunction with Six Sigma, therefore, can directly lead to improved project performance and continuous process improvement by analyzing data, assessing process stability, and prioritizing improvements in PSP/TSP. Continuing with this rationale, a framework that guides how and where Six Sigma tools are considered in PSP/TSP is proposed.