Smart factories can be defined as intelligent factories that produce products through IoT-based data. In order to build and operate a smart factory, various new technologies such as CPS, IoT, Big Data, and AI are to be introduced and utilized, while the implementation of a MES system that accurately and quickly collects equipment data and production performance is as important as those new technologies. First of all, it is very essential to build a smart factory appropriate to the current status of the company. In this study, what are the essential prerequisite factors for successfully implementing a smart factory was investigated. A case study has been carried out to illustrate the effect of implementing ERP and MES, and to examine the extensibilities into a smart factory. ERP and MES as an integrated manufacturing information system do not imply a smart factory, however, it has been confirmed that ERP and MES are necessary conditions among many factors for developing into a smart factory. Therefore, the stepwise implementation of intelligent MES through the expansion of MES function was suggested. An intelligent MES that is capable of making various decisions has been investigated as a prototyping system by applying data mining techniques and big data analysis. In the end, in order for small and medium enterprises to implement a low-cost, high-efficiency smart factory, the level and goal of the smart factory must be clearly defined, and the transition to ERP and MES-based intelligent factories could be a potential alternative.

1. 서 론
2. 이론적 고찰
    2.1 선행연구 조사
2. 스마트 공장에 대한 이해
3. ERP와 MES
3. 구현 사례 연구
    3.1 현상에 대한 이해
    3.2 구현 범위
3. ERP와 MES구현 효과
4. 스마트 공장으로 가야 할 과제
    4.1 지능형 MES
5. 결 론
References

• Sung-Min Kim(서울과학기술대학교 IT정책전문대학원 산업정보시스템전공) | 김성민
• Jaekyoung Ahn(서울과학기술대학교 IT정책전문대학원 산업정보시스템전공) | 안재경 Corresponding Author