Decide how list items are to be compared. The most common is the strong/medium/weak relationship, although there may well be circumstances where other relationships may be more appropriate. For example, when comparing a list of people against tasks, the comparison may indicate prime responsibility, influence and interest.
This stage may also include identification of symbols to use. The most common symbols are as shown in the diagram above, although any other symbol set may be chosen. Although symbols are easier to interpret visually, numbers may be preferable, particularly if a computer spreadsheet is being used