Final answer:
A net-change MRP system is updated continuously as changes occur, not just periodically. Therefore, the statement is false.
Step-by-step explanation:
The statement that a net-change MRP system is one that is updated periodically but not less frequently than once a week is false. A net-change MRP, which stands for Material Requirements Planning, is a system that is continuously updated whenever there are changes in requirements, inventory levels, or bill of materials. In contrast to periodic MRP systems that update at fixed intervals, such as weekly or monthly, net-change systems are dynamic and reflect changes as they happen. This allows companies to adjust their production and inventory plans more accurately and with greater agility to meet changing demands.