The Six Sigma methodology DMAIC (Define, Measure, Analyze, Improve, Control) offers a structured and disciplined process for solving business problems. Six Sigma uses tools designed to identify root causes for the defects in processes that keep an organization from providing its customers with the consistent quality of products the customers require on time and at the most reasonable cost. The Six Sigma work is normally done through cross-function teams that manage the project.

Where as Project management’s tools and techniques focus on attributes of a project such as development, execution, control and closing. There is an assortment of tools that are used throughout the project to manage the project to completion.

By taking the process control strength of project management and combining it with the troubleshooting strength of Six Sigma, an organization can create a consistent, controlled and predictable process troubleshooting system. The integration can begin with the development of a project life cycle. Implementing the Six Sigma methodology for defining the problem adds statistical knowledge of the problem, reducing the chance of an incorrect assessment of the issue as defined by the customer and scope documents. Using Six Sigma tools will reduce the bias that influences perceptions about a particular problem.

Six Sigma tools used for measurement of the problem – gage R&R, FMEA and control plans – can be useful within project managaement’s validation phase of the life cycle. Adding budgeting, scheduling and resource management from project management – throughout the life cycle, will allow management to make informed decisions to move from phase to phase. The tools of both project management and Six Sigma can be placed in this life cycle to plan, act, do and check for a process improvement project.

Using Six Sigma tools throughout the project life cycle adds a series of troubleshooting tools and methodology to the project management system. Project management contributes tools to monitor and track the progress of the project and also adds controls to the problem.