Human Machine Interfaces (HMI) systems allow workers to easily communicate with machines through a graphical interface. They can increase worker satisfaction by simplifying machine operation. HMI systems also enhance productivity by automating manual tasks, allowing workers to focus on other duties. Additionally, HMI systems improve data management by continuously extracting and storing production data, even without an internet connection. Choosing the right HMI for a business involves considering the screen size, touch type, integrated features, and resolution needed to support specific software applications.