Example: Washing machines - Decision Matrix 

The task is to choose one among 10 types ofwashing machines. The variants A1-A10 criteria f1-f5 are:
 
Variant
Criterion
1
AEG LAVAMAT 86720
1

max
RPM (rounds per minute)
2
AEG LAVAMAT 60300
3
AEG LAVAMAT W 1020
2

min
electric power consumption

kW per one washing cycle
4
ELEKTROLUX EW 815 F
5
ELEKTROLUX EW 1232
3

min
water consumption

litres per one washing cycle
6
ELEKTROLUX 511F
7
ZANUSSI FL 12
4

max
quantity of laundry

kg per one washing cycle
8
ZANUSSI FLS 873
9
ZANUSSI FL 573
5

min
cost price of washing machine CZK
10
ZANUSSI TL883


The decision matrix D is than:
 
1600
0,89
39
5
39990
1000
1,05
54
5
22990
1000
1,1
59
5
19990
850
1,15
59
5
17990
1200
1,05
52
5
21590
500
1,3
72
5
14490
1200
0,94
41
5,5
27990
800
1,3
72
5
14390
500
1,2
59
3,5
16390
850
1,25
74
5
15990

For example, characteristic of 3rd variant i.e. washing machine AEG LAVAMAT W 1020 is to be found in the 3rd row. The attribute of 3rd variant under 5th criterion - a35 (the price of washing machine) is in the intersection of 3rd line and 5th column – i.e. the price of AEG LAVAMAT W 1020 is 19 990 CZK. 

An overview of electric power consumption of all variants is in the 2nd column of the decision matrix.