Design for Six Sigma

摘要

Many organizations believe design for Six Sigma (DFSS) is a design process when really it is not. DFSS is an enhancement to an existing new product development (NPD) process that provides more structure and a better way to manage the deliverables, resources and trade-offs. DFSS is the means by which we employ strategies, tactics and tools to enhance an existing design process to achieve entitlement performance. It integrates qualitative and quantitative tools and key performance measures that allow progressive organizations to manage an NPD process more effectively to optimize several competing key drivers, such as cost, quality and time to market. A typical NPD process might include several high-level development phases, such as the seven-step systems engineering model: needs assessment, concept design, preliminary design, detail design, process design and construction, manufacturing and end of life. Most organizations have instituted management reviews called checkpoints or toll-gates throughout these design phases to allow the organization to assess risks, monitor progress and ensure transitions from each phase to the succeeding phase are warranted.