Cost Leadership - Walmart which targets mass market by making goods available at a lower cost.
Cost focus - Family Dollar which provides products to poor urban American families who can not drive to Wal-Mart in the suburbs because they do not own a car
Differentiation - Apple targets the mass market with its iPhone and iPod products with a differentiation strategy based on design, branding and user experience
Differentiation focus - A shop selling expensive perfumes to high net worth clients only