Difference standard sequence

• Define attribute levels x0, x1, …, xn such that the increase in the strength of preference is equal for all steps xi to xi+1, i = 1,..,n

• As the attribute levels are equally spaced in value

• Let k = 1 and v(x0) = 0 

Value measurement techniques

v(xi+1) - v(xi) = k for all i

v(xi) = i for all i

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