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Nominal Group Technique (NGT) - Page 2 of 2
5) let each team member rank the options, by writing a number denoting the rank of the option beside the letter identifying the option; the most important option is usually assigned the highest number, so that any option whose ranking is left blank by any member will not benefit with an increase in its importance; as an example, a team member named John may have a sheet that looks like Table 2;
Table 2. Example of John's Ranking Sheet
6) combine the ranking of all the members by adding the rank scores of each option in a 'results' table; the option with the highest score is considered to be the most important option per the team's consensus; Table 3 shows an example of the output of a complete nominal group technique cycle for the given theme.
Table 3. Example of a Final Output of an NGT Session
In the example above, the team members used the nominal group technique to arrive at the consensus that the most important factor contributing to the problem of 'high Failure Analysis cycle time' is Option F, or lack of FA engineers to handle all the incoming workload.
See Also: Ishikawa Diagram; Matrix Diagram
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