Scaling r	Definition	Description (compared the two elements)
0.5	Equally important	Equally important
0.6	Slightly important	An element is a little more important than another
0.7	Obviously important	One element is more important than another
0.8	very important	One element is very important than another element
0.9	Extremely important	One element is more important than the other
0.1, 0.2, 0.3, 0.4	Inverse comparison	If the element $a_{i}, a_{j}$ is compared to $r_{i j}$ ,
		Then the element $a_{j}, a_{i}$ is compared to $r_{j i} = 1 - r_{i j}$