Michael Porter's five forces analysis is an important tool:

for evaluating profit potential of an organization's various business units or product lines.

that considers a firm's strength and weaknesses along with the opportunities and threats that exist in the firm's environment.

for organizing factors within the general enviromment and identifying how these factors influence industries and the firms within them.

for executives to analy sy strategic groups in order to understand gaps in the industry that represent untapped opportunities.

for analyzing how much profit potential exists in an industry.