Addis Ababa University wants to procure a new CCTV Camerafor electronic ID at the gate for students and staffsfrom a supplier, and is considering three models: the A,B,C. AAUhas identified three criteria for selection on which it will base the decision from the models: purchase price, quality, and maintainability. AAU has developed the following pairwise comparison matrices for the three criteria:

price Maintability Quality

cctv A B C cctv A B C cctv A B C

A 1 2 4 A 1 2 1 A 1 1/3 1/7

B 1/2 1 2 B 1/3 1 1/2 B 3 1 1/4

C 1/4 1/2 1 C 1 2 1 C 7 4 1

AAUhas prioritized the decision criteria according to the following pairwise comparisons;

criteria price quality maintainability

price 1 3 5

quality 1/3 1 2

maintainability 1/5 1/2 1

Using AHP, develop an overall ranking of the three SNW Commerce is Considering for its electronic ID to be launched in 2009 e.c academic year.

Calculate CI, for RI=0.58 for n=3 criteria and make your decision.