Systems integration is described as a process in which a complex information system is created. This often involves designing or constructing a piece of architecture while incorporating hardware, virtual components, and appropriate communications. An organization’s physical and virtual components are brought together through system integration into a single operational entity. The physical aspects are the multiple machine systems, computer hardware, inventory, and other physical components.
The virtual components are data saved in databases, software, and application programs. System integration is primarily concerned with integrating all these components such that they behave as if they are a single system. The technique applies to all systems, from product systems to service systems to enterprise systems. Its definition also involves the five methods of integration. These are manual, middleware, application-based, uniform access, and common storage integration.