Don't Skip the Fundamentals:
Editor | On 01, Jan 2010
Message: 1592Posted by: TRIZ tortoise
Posted on: Saturday, 21st March 2009
Dear PaddyDaddy
Before attempting to apply any method to generate a solution, one shold understand the problem. The problem as you stated is based on a perception, not on data: I recommend you first quantify actual quality of the given suppliers relative to the requirement. Use technical measures such as tolerances and describe them as variability, not average values.