Weighty system integration refers to the process of combining different subsystems or components into a larger, unified system that functions seamlessly. It involves connecting and integrating various software applications, hardware devices, databases, and networks to enable them to work together and share information efficiently.

System integration is crucial in modern business environments where organizations use multiple systems, platforms, and technologies to support their operations. By integrating these systems, businesses can eliminate data silos, improve communication and collaboration, streamline processes, and enhance overall efficiency and productivity.