What is system integration?

System integration is the process of connecting different computing systems and software applications physically or functionally, to work together as a coordinated whole. This involves combining hardware devices, software programs, and communication networks so that they operate seamlessly and exchange data efficiently. System integration helps organizations streamline workflows, improve efficiency, and reduce operational costs by ensuring that all parts of their IT environment communicate effectively. Integrators may use various methods and tools depending on the complexity and requirements of the systems involved.