인터넷과 웹의 발전은 쇼핑몰 형태의 B2C(Business to Customer) 전자상거래를 비롯하여 기업간의 거래에도 많은 변화를 가져오게 되었다. B2B(Business to Business) 전자상거래는 기업간의 거래를 위하여 이기종간의 데이터 교환은 물론, 다양한 응용 어플리케이션과의 연동이 필수적이다. 기업간 거래에 있어서 가장 기본이 되는 EDI는 그 동안 EDIFACT, X.12와 같은 표준을 이용하여 이루어져 왔지만, 확장성과 유연성이 떨어지고 개발 및 유지, 보수에 많은 비용을 요구하기 때문에 일반 중 소기업들까지 사용하기에는 어려움이 많았다. 반면에, 인터넷과 웹이라는 누구나 쉽게 이용할 수 있는 수단과 XML 기술이 등장하면서 이를 EDI에 적용하여 확장성과 유연성을 높이고, 저렴한 비용으로 EDI 시스템을 효과적으로 구축할 수 있게 되었다. 본 논문에서는 한국전력에서 사용하는 전기신규접수 XML/EDI 시스템 개발 경험을 바탕으로 XML을 이용한 EDI 문서 설계와 XSL을 이용한 문서 처리 기술, 레거시(legacy) 시스템과의 연동, 보안 및 인증 기술의 적용 등을 바탕으로 XML/EDI 시스템의 설계 및 구현에 대하여 논하고자 한다.
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