A probability/impact matrix or chart lists the relative probability of a risk occurring on one side of a matrix or axis on a chart and the relative impact of the risk occurring on the other
List the risks and then label each one as high, medium, or low in terms of its probability of occurrence and its impact if it did occur
Can also calculate risk factors:
Numbers that represent the overall risk of specific events based on their probability of occurring and the consequences to the project if they do occur