ECAD stands for Electronic Computer-Aided Design. This term refers to software for the design of electrical and electronic systems. It is used to design printed circuit boards (PCBs), integrated circuits (ICs), and electrical systems. Electronic CAD focuses on the design and development of electronic circuits, PCBs and electronic components. It is primarily used by electronics engineers. In contrast, electrical CAD is used for designing and documenting electrical systems, wiring diagrams, control panels and power distribution networks.