This document discusses new product development and the product life cycle. It outlines the 7 steps in the new product development process: 1) idea generation and screening 2) concept development and testing 3) marketing strategy development 4) business analysis 5) product development 6) test marketing 7) commercialization. It also describes the 4 stages of the product life cycle: introduction, growth, maturity, and decline. In each stage, it discusses how sales, costs, profits, and marketing objectives change over the lifetime of the product.