Here is further article on the use of IT in six sigma projects. 

We are all familiar with using analytical tools such as DOE, regression, and control charts for inferential statistics to model and predict behaviour. One IT tool I have recently had the benefit of using being decision trees. Let me explain.

Take for example a mock-up satisfaction survey with a range of questions spanning relationship management, strategic fit, product quality, and after-sales service. Customers rate their expectation and your performance against each question. The final question of the survey being, what is your overall level of satisfaction?

When it comes to analysis it is normal to develop descriptive statistics such as magic-quadrants and spider-diagrams.