Final answer:
A decision matrix is created by identifying criteria, weighting them, listing options, scoring options against the criteria, and calculating total scores; the Fishbone diagram is not directly used in this method.
Step-by-step explanation:
To create a decision matrix, which is not typically associated with the Fishbone diagram method, one would more commonly follow steps involving the identification of criteria, assigning weights to each criterion based on importance, listing options, and scoring them accordingly. The Fishbone diagram, also known as an Ishikawa or cause-and-effect diagram, is a different tool mainly used for identifying, analyzing, and representing the possible causes of a problem, rather than making decisions among alternatives.
A proper decision matrix should be structured with a focus on direct comparison of choices based on weighted criteria. It often starts by creating a table that lists options along the rows and criteria along the columns. Then, scoring each option against the criteria and applying the weights, so that you can calculate a total score for each option. The option with the highest total score is typically considered the best choice. This method is detailed and effective for making complex decisions more manageable.