Design for six sigma in product and service in development : applications and case studies Design for Six Sigma (DFSS) is a data driven quality strategy for designing products and services. The goal of DFSS is to avoid process problems using systems engineering techniques. DFSS consists of five interconnected phases: Define Measure Analyze Design Verify. This book provides a detailed description of how to apply DFSS in product and service development. It provides instructional strategies an overview of benefits and uses and a roadmap that links several methodologies including organizational leadership product development system integration critical parameter management voice of the customer quality function deployment and concept generation