To illustrate how the assortment planning framework works in practice, here are some examples of how different retailers use it to achieve their merchandising goals. One example is Zara, a fast-fashion retailer that uses the assortment planning framework to offer a wide and fresh assortment of trendy products that appeal to its fashion-conscious customers. Zara defines its assortment strategy based on its brand image, customer feedback, and market trends. It develops its assortment plan based on its sales data, store location, and seasonality. It executes its assortment plan based on its agile supply chain, frequent deliveries, and flexible distribution. It evaluates its assortment performance based on its inventory turnover, sell-through rate, and customer satisfaction. Another example is Costco, a warehouse club retailer that uses the assortment planning framework to offer a narrow and deep assortment of high-quality products that offer value to its loyal customers. Costco defines its assortment strategy based on its membership model, customer trust, and competitive advantage. It develops its assortment plan based on its supplier relationships, bulk buying, and category management. It executes its assortment plan based on its efficient logistics, limited merchandising, and consistent layout. It evaluates its assortment performance based on its gross margin, renewal rate, and customer retention.