Answers:
The term ‘experiment’ means a systematic procedure
that is carried out in a controlled environment to discover some unknown
effects or to validate a hypothesis. Similarly, DOE as a technique deals with
discovering the relationship between the process inputs and outputs. In simpler
words, DOE is a systematic approach of evaluating the production processes of
organisations to find out the process inputs that have very significant effects
on the process outputs, i.e., the final products. Let
us take an example to understand the concept more clearly. Suppose, an
electronic company manufactures amplifiers. The
typical inputs in the production process are
W: the width of the microstrip lines,
R: a resistor and
C: a capacitor.
In this case, the role of DOE is to
evaluate all these inputs of the production process and determine the effect of
each design inputs on the final output. Therefore, DOE helps in answering the
following questions regarding the production process:
·
What are the critical factors in a
process?
·
What is the effect of interaction of the
factors in the output of the process?
·
How do the interaction of the factors
cause variations in the output?