The Arthur D. Little (ADL) Matrix, created in the late 1970s, is a strategic analysis tool used for evaluating a company's product portfolio based on competitive position and industry life cycle stages. It consists of a 5x4 matrix assessing industry maturity—ranging from embryonic to decline—and competitive standings from dominant to weak. The ADL Matrix aids in business level portfolio analysis by identifying strategic business units' (SBUs) positions and offers flexibility, though it may suffer from a lack of focus on external threats.