{"id":253,"date":"2025-07-23T06:32:26","date_gmt":"2025-07-23T06:32:26","guid":{"rendered":"https:\/\/www.purdue.edu\/leansixsigmaonline\/?p=253"},"modified":"2025-07-23T18:57:13","modified_gmt":"2025-07-23T18:57:13","slug":"dmaic-vs-dmadv","status":"publish","type":"post","link":"https:\/\/www.purdue.edu\/leansixsigmaonline\/blog\/dmaic-vs-dmadv\/","title":{"rendered":"DMAIC Vs. DMADV"},"content":{"rendered":"

Lean Six Sigma<\/a> is a continuous improvement methodology<\/a> that focuses on the elimination of waste and reduction of variation from manufacturing, service and design processes.\u00a0 The Lean methodology<\/a> aims at reducing non-value activities and cycle times while creating value for customers. Six Sigma identifies and reduces variability, improving overall quality. LSS can reduce your costs and help you retain and even gain more customers.
\n\"DMAIC
\nLSS prescribes an improvement process known as DMAIC<\/strong> (Define\u2014Measure\u2014Analyze\u2014Improve\u2014Control).\u00a0 However, its application is limited to improving existing processes. It doesn\u2019t address the design of new products, services, or processes.<\/p>\n

For developing a new product, service or process, there\u2019s a modified version called DFSS <\/strong>(Design for Six Sigma<\/a>). The process most often used in DFSS is called DMADV<\/strong> (Define\u2014Measure\u2014Analyze\u2014Design\u2014Verify).<\/p>\n

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What Is DMAIC (Define\u2014Measure\u2014Analyze\u2014Improve\u2014Control)?<\/h2>\n

DMAIC<\/strong> is the more well-known and most-used LSS project method. DMAIC focuses on improving an existing process by incorporating the following phases:<\/p>\n\n\n\n\n\n\n\n\n\n
Phase<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Define<\/td>\nDefine the problem, output to be improved, customers, and process associated with the problem.<\/td>\n<\/tr>\n
Measure<\/td>\nCollect data from the process to establish a baseline for the improvements.<\/td>\n<\/tr>\n
Analyze<\/td>\nAnalyze the data to find the root causes of defects.<\/td>\n<\/tr>\n
Improve<\/td>\nDevelop, test, and implement solutions to improve the process.<\/td>\n<\/tr>\n
Control<\/td>\nImplement process controls to sustain the improvements.<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n
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What Is DMADV (Define\u2014Measure\u2014Analyze\u2014Design\u2014Verify)?<\/h2>\n

DMADV<\/strong> is focused on the process of designing a new product, service or process, incorporating the following phases:<\/p>\n\n\n\n\n\n\n\n\n\n
Phase<\/th>\nDescription<\/th>\n<\/tr>\n<\/thead>\n
Define<\/td>\nDefine the process and design goals.<\/td>\n<\/tr>\n
Measure<\/td>\nMeasure and identify critical-to-quality characteristics of the product, service or process. This includes risk and production capabilities.<\/td>\n<\/tr>\n
Analyze<\/td>\nAnalyze the data to find the best design.<\/td>\n<\/tr>\n
Design<\/td>\nDesign and test the product, service or process.<\/td>\n<\/tr>\n
Verify<\/td>\nEnsure that the design output meets the design input requirements (verification) and that the designed product performs satisfactorily under real or simulated conditions of intended use (validation).<\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n

DMADVO<\/strong> is a lesser known DFSS method. The difference between DMADV and DMADVO is that \u201cO\u201d or \u201cOptimize\u201d has been added. Thus, DMADVO prioritizes the need for the organization to optimize the design after implementation.<\/p>\n

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What Are the Similarities Between DMAIC and DMADV?<\/h2>\n

Both DMAIC and DMADV:<\/strong><\/p>\n