This document discusses product life cycle management. It begins by outlining the typical 5 phases of a product life cycle: development, introduction, growth, maturity, and decline. It then analyzes criticisms of the rigid product life cycle model, noting products do not always follow predictable patterns. The document provides strategies companies can use to optimize revenues at each phase. These include adjusting price, promotion, distribution, and focusing on market share, competition, or profitability based on where the product is in its lifecycle.