System integration

Is the bringing together of the component subsystems into one system and ensuring that the subsystems function together as a system.^[1] Ininformation technology, systems integration^[2] is the process of linking together different computing systems and software applications physically or functionally,^[3] to act as a coordinated whole.

The system integrator brings together discrete systems utilizing a variety of techniques such as computer networking, enterprise application integration, business process management or manual programming

 System integration involves integrating existing often disparate systems.

Software Integration

Sophisticated software applications do not exist in a vacuum. They exist as logical components of an encompassing infrastructure. By definition, primary enterprise applications are essential to the financial or commercial wellto learn more-being of an organization. Generally they are functionally involved with other components of the enterprise – and components can be devices, databases, processes, subsystems, or even complete external applications. Functional involvement can consist of any logical interchange in which a 
component affects the behavior of other components


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