Which system integrates all business functions into one system?

• A. Enterprise Resource Planning
• B. Sales and Operations Planning
• C. Supply Chain Operations Reference model
• D. Product portfolio management

Answer: (A)

An Enterprise Resource Planning system is designed to bring all major business functions into one integrated platform. It links departments like finance, human resources, procurement, inventory, manufacturing, order management, and customer data on a single database and common set of processes. This integration enables real-time visibility, consistent data, and streamlined workflows across the organization, so decisions can be made with a complete view of operations.

Sales and Operations Planning is about aligning demand and supply through a collaborative planning process, not about housing all functions in one system. The SCOR model is a framework for describing and evaluating supply chain processes, not a single software solution. Product portfolio management focuses on selecting and managing product lines and features, not on integrating day-to-day operations across the entire company.