I think that could be useful for you to get a Book of Shigeru Mizuno named
"Management for Quality Improvement. The 7 New Q.C. Tools". Using the
methodology of this book you can get the "Root Causes" and "Root Effects"
in an analyzed problem.
Luis
--Luis Carlos Flores Avila <lcavila@orizaba.itorizaba.edu.mx>
[Host's Note: In associations with Amazon.com,
Management for Quality Improvement; The Seven New Qc Tools Shigeru Mizuno(Editor), $65 http://www.amazon.com/exec/obidos/ASIN/0915299291/learningorg
... Rick]
Learning-org -- Hosted by Rick Karash <rkarash@karash.com> Public Dialog on Learning Organizations -- <http://www.learning-org.com>