Industrial control systems describe control systems where the devices, networks, and controls are used to automate and operate industrial processes.
Supervisory control and data acquisition (SCADA) is a control system architecture comprising computers, networked data communications and graphical user interfaces for high-level supervision of machines and processes. It also covers sensors and other devices, such as programmable logic controllers, which interface with process plant or machinery.
This is a computerized system that can gather and process data and apply operational controls. This can be done over long distances. SCADA is aimed at minimizing the communication challenges like delays and data integrity). SCADAs are used in power transmission and distribution, and pipeline systems. Usually shared rather than dedicated.