Question

Taguchi defines loss as a function of which of the following?

a) Manufacturing cost and product reliability
b) Frequency of out-of-control occurrences
c) Product maintainability and availability
d) Variability and deviation from target"

Answer 1

Taguchi's definition of loss is related to variability and deviation from the target, focusing on minimizing negative impact on society from suboptimal product quality. The correct option is d.

Step-by-step explanation:

Taguchi defines loss as a function of variability and deviation from target. According to Genichi Taguchi, a Japanese engineer and statistician, the quality of a product is determined by the loss imparted by the product to society from the time the product is shipped. This loss can be in the form of rework, warranty claims, decreased life expectancy of the product, and other disappointments to the customer.

Hence, the loss function incorporates both variability in the manufacturing process and any deviation from the target value or performance of the product, which directly impacts the user experience and associated costs. Taguchi's philosophy recommends minimizing this loss by designing products and processes that are robust and less sensitive to variations.

Hence, Option d is correct.