This document discusses product development and the new product development process. It defines product development as making changes to the size, design, color, packaging, or other characteristics of a product. It then outlines the major stages in new product development: idea generation, idea screening, concept development and testing, business strategy analysis and development, product development, test marketing, and commercialization. An example is given of how Ratan Tata developed the Tata Nano car to meet the needs of families traveling on scooters. Reasons for new product development include changes in consumer preferences, technology, and competition.