Q. Identify 3 companies which have products which are bought also sold in a business-to-business context. Select one product from every Corporation also describes every product in detail. Identify individuals within the buying organization who fulfil the different roles of the buying center. Identify as many for every role as possible, doing research where necessary. Point out describe how some individuals might play more than one role. Is there a relationship between some of the roles? Is which relationship always present?