Presenting proven techniques illustrated by case studies, Stream of Variation Modeling and Analysis for Multistage Manufacturing Processes summarizes the new methodologies and their implementation in the area of variation modeling, control, and reduction. Variation management and reduction is essential to achieving high product quality, productivity, and low manufacturing cost. This book focuses on developing a unified, systematic, and generic methodology and investigates fundamental issues. It discusses research funded by the National Science Foundation and demonstrates the implementation of the SoV methodology that has been funded by GM, Daimler-Chrysler, Ford, Auto Body Consortium, and others.