According to the changing environment of management, the concept of the one-to-one marketing is appeared in the environment of management by high Quality that customers needs. In this paradigm, CRM(Customer Relationship Management) offering integrated multiple view points is able to be executed by the advance of Information Technology (IT). In this study, the environment and the management status of the steel company that CRM implemented is analyzed. This study presents the system architecture which applies OLAP(on-line analytical processing), web technologies, and logistics service. Then this research presents a variety of effects and development direction in the future.

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