Jian starts by collecting point-of-sale information. He sees that Rosie, who runs evening classes for adults, makes a mix of large and small purchases. She buys mid-range supplies in bulk, but also high-quality paints and canvases in smaller amounts.
Jian decides to study a few customers in depth to understand their needs. He meets Rosie at the community centre and learns she buys the bulk orders for her teaching business, with smaller orders for herself.