The pair wise matrix is formulated using the AHP
judgment values of the various criteria and it is structured in
table 2 using (1) .From the comparison matrix the weights of
the various criteria were obtained.
The relative weights of different types of criteria are
calaculated using (2) and tabulated in table 2.The weight of
annual usage was the highest and next was the unit weight
then followed by shape, demand and unit price. From the
result, it is seen that the annual usage value of the item is the