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Six Sigma Black Belts - What should they know?
http://www.articleinformer.com/articles/7447/1/Six-Sigma-Black-Belts---What-should-they-know/Page1.html
Tony Jacowski
Tony Jacowski is a quality analyst for The MBA Journal. Aveta Solution's Six Sigma Online offers online six sigma training and certification classes for lean six sigma, black belts, green belts, and yellow belts.
http://www.sixsigmaonline.org 
By Tony Jacowski
Published on 05/2/2007
 
Six Sigma Black Belts are fourth in the chain of personnel that play a key role in six sigma implementation. Six Sigma Black Belts form the critical link between the Master Black Belts who are higher up the chain and the Green Belts, lower in the chain. Six Sigma Black Belts need to devote 100% of their time to the implementation, with their primary focus on execution.
Six Sigma Black Belts - What should they know?
Six Sigma Black Belts are fourth in the chain of personnel that play a key role in six sigma implementation. Six Sigma Black Belts form the critical link between the Master Black Belts who are higher up the chain and the Green Belts, lower in the chain. Six Sigma Black Belts need to devote 100% of their time to the implementation, with their primary focus on execution.