The graphical user interface (GUI) is what most people now see when they use computers. The macOS and Windows operating systems are primarily graphical-based, as graphical interfaces are easier to use; while you can do some things from a text console, such as Windows PowerShell, the majority of features are accessed through a graphical window.
Currently, our fuel farm project is strictly text-based. To make it easier for people to use, we can put a graphical interface on it, which allows people to click on the components to manipulate them. In the industrial controls world, this is called a human-machine interface, more commonly known as an HMI. An HMI allows an operator to work with a system and change settings without having to manually walk to each component. It also displays system parameters, such as flow rates or pressure values.
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