System Integration in the Electrical & Electronics category is a specialised field that focuses on the integration of different systems and components to create an efficient and effective whole. It involves the integration of hardware, software, and communications into a unified system, as well as the design and implementation of control systems for industry, commercial, and residential applications. System Integration professionals are highly skilled in the design, installation, and maintenance of complex systems, and are able to provide solutions that are tailored to the needs of their clients. They are also adept at troubleshooting existing systems and can provide guidance on the best way to upgrade or replace existing systems.