Michael A. Cusumano is a professor at MIT Sloan School of Management who has published 9 books and over 70 articles on management strategy and innovation. An industry platform provides a common foundation technology that can be reused across product variations. It requires complementary products and services from other firms to create value for users. Platform providers need to attract these complementors to join their ecosystem and help the platform grow through network effects that benefit both the platform and complementors. Winning platforms have a strong ecosystem backing their strategy rather than just the best technology.