3-8 Marks & Spencer Group is a leading department store chain in the United Kingdom. Its retail stores sell a range of merchandise. Senior management has decided that Marks & Spencer should tailor merchandise more to local tastes, and that the colors, sizes, brands, and styles of clothing and other merchandise should be based on the sales patterns in each individual store. How could information systems help management implement this new strategy? What pieces of data should these systems collect to help management make merchandising decisions that support this strategy?