The main purpose of this chapter is to present the definition of corporate governance, why corporate governance matters (especially from the viewpoint of the formative connections of the AGG Model), what is expected from corporate governance from a public policy perspective, and finally, the chapter shows some important governance aspects related to the model of “open innovation.” It attempts to present the most relevant theoretical and practical aspects of corporate governance that can contribute to a proper understanding of the concept of corporate governance as a connection between the architectural design, operation, and growth of enterprises, and its alignment to the architecture, operation, and growth of markets.