1. Understanding VA

1.1 What is value?

Insofar as it is expectations or motivations that justify the resources (including financial) and efforts required, NF EN 1325 defines the value of a product as "the relationship between the function's contribution to satisfying the need and the function's cost".

Thus formulated, value appears as a ratio:

Assessment of the level of satisfaction of expectations (or needs)

Value = ___________________________________________________________________

Assessment of resources and effort required

It is a quantity that increases when the satisfaction of the need increases and/or when...