???? ??? ??? ?????? ??? ????? ??. ? ?? ???? ??? ?? ??? ?? ??? ??? ??, ??? ???, CRM(Customer Relationship Management)?? ??? ??? ?? ?? ???? ??. ??? ??, ??? ???? ???? ?? ??? ????, ???? ???? ???? ????? ??? ??? ??? ?? ??? ?? ????? ???? ??? ??.

?? ????? ?? ??? ???? ?? ?? ???? ?? CRM ???? ??? ? ??? 21??? 'e???' ??? CRE(Customer Relationship Engineering)?? ??? ???? ??. ??? ??? ??? ? ?? ??? ??? ???? ? ???? ????? ??? ??? ????? ??? ???? ??? ? ??? ???? ????.

???? ??? ??? ??? ???? ?? ??? CRE?? ????. ??? ??? ?? ???? ???? ??? ????? ????? ??? ???? '?? ??? ??'?? ??? ????? ????? ???.

? ??? ?? ??? ?? ??(Mining) ??? ??? ?? '?? ???'? ?? ???? ???? ??? ???? ??.

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