The Volvo Group comprises several business areas, including Trucks, Construction Equipment, Buses, Marine, and Industrial Operations. Each of these business areas has its own operational model that is tailored to the specific needs of that business.

For example, the Truck business area is responsible for designing, manufacturing, and selling Volvo trucks and other commercial vehicles. It operates under a global matrix structure, which means that there are functional and geographic units that work together to develop and produce products. The functional units include engineering, product planning, purchasing, and manufacturing, while the geographic units are responsible for sales, marketing, and customer support in different regions.

The Construction Equipment business area operates under a similar matrix structure, with functional units for engineering, manufacturing, and sourcing, and geographic units for sales and support. The Buses business area operates under a regional structure, with separate units for Europe, North America, South America, and Asia.

The Marine business area is responsible for developing and producing engines and propulsion systems for marine applications. It operates under a functional structure, with separate units for engineering, product development, and supply chain management.

Overall, the operational model of Volvo is designed to support the company's global presence and diverse product offerings while allowing each business area to operate autonomously and effectively.