The main goal of Six Sigma, being a business improvement methodology, is to implement a systematic approach of ensuring efficiency while eliminating defects. This has been the primary reason why a lot companies are daring to apply the Six Sigma processes within their organization to meet certain expectations.
There are two key methodologies used in Six Sigma and these are DMAIC, which is used for an existing process and DMADV, which is used for new projects. Each of the letters that comprise these terms has meanings, which also happen to be the actual steps to be followed that will eventually result to a product or service of higher quality.
For DMAIC, the five important steps include the following:
a) D stands for definition of goals to improve the overall process. b) M is for measurement of the current processes as a baseline for future comparisons. c) A means analysis of relationships between processes to keep in line with customer demands. d) I is for improvement of the process that results to system optimization. e) C stands for control to avoid system conflicts and process defects.
For DMADV, these are the five important steps to follow:
a) D means definition of goals to provide consistency between processes. b) M is for measuring CTOs (critical to qualities), which consists of product risk assessments and capabilities among others. c) A stands for analyzing various project designs and choosing the best one that fits business goals and objectives. d) D is for designing of product details. e) V means verifying the design that may also require project leaders to hand it over to process owners for confirmation.