In an economy of rapid change, continuous innovation is a necessity. Companies that fail to develop new products leave themselves vulnerable to changing customer needs and tastes, shortened product life cycles, increased domestic and foreign competition, and especially new technologies. Most established companies focus on incremental innovation, entering new markets by tweaking products for new customers, using variations on a core product to stay one step ahead of the market, and creating interim solutions for industry-wide problems. Newer companies create disruptive technologies that are cheaper and more likely to alter the competitive space