Page 41 - MODULE QUALITY TOOLS DMQ 30262

DMQ 30262

3.5 PRIORITISATION GRID

A prioritisation grid is used to make decisions based on multiple criteria. For example,
in choosing a technology, we might have a variety of options. Also, the decision
criteria vary as to how to choose possible desired outcomes. When there are multiple

alternatives and multiple criteria, a prioritisation matrix is a good method to inform
your decision making without resorting to more sophisticated analysis.

Following are the steps required to make a prioritisation grid:

1. Determine your goal, your alternatives, and the criteria by which a decision is to
be made.

2. Place the selection criteria in order from most important to least important.
3. Apply a percentage weight to each of the criteria for each option. Apply a weight
to each of the criteria such that all the weights add up to 1 (for example, A = 0.40,

B = 0.30, C = 0.25, D = 0.05).
4. Add the individual rating for each criterion to come to an overall ranking. Divide

by the number of individuals to find an average ranking.
5. Rank each option or alternative with respect to the criteria. Average the rankings
and apply a completed ranking.

6. Multiply the criteria weight by its associated criterion rank for each criterion in the
matrix. Notice that in this case, a ranking of 4 is best and 1 is worst. The result in

each cell of the matrix is called an importance score.
7. Add the importance scores for each alternative.
8. Rank-order the alternatives according to importance.

Example 3.3:

Prioritisation grid. A company had to choose between five possible
machines for a service process with five criteria. The criteria were ease of use,

necessary maintenance, cost of the machine, expected life of the machine,
and reputation for the quality of the machine (see Table 3.1).

The three-team members provided subjective importance ratings for each of
the different decision criteria. These are shown in Table 3.2.

KKTM Kuantan 40 DMQ 30262