• Proceedings of the Korea Association of Information Systems Conference
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• 2003.05a
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• pp.127-139
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• 2003

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.182-189
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• 2007

To reform and improve the productivity of construction industry, 1) it should be encouraged to improve the construction production process and 2) it is required to enhance reliability of construction information based on the systematic thinking process. To promote the information reliability created during construction production process, Lean Construction Research Center(LRC2) is developing a supporting system to improve design/material supply/schedule management, functioning to efficiently manage the information created at construction production processes and developing a web based construction information system that provides result management/decision making support/knowledge based information services.

• Korean Journal of Construction Engineering and Management
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• v.5 no.1 s.17
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• pp.133-139
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• 2004

The purpose of this study is to present an improved lift-up &procurement work flow for effective resource utilization in building construction. The current lift-up &procurement work flow has some waste factors; complicated information system, connection lack with process and decision-making delay. Therefore the study applied the value stream mapping methodology for improvement of current lift-up &procurement work flow. The main contents of the study are as follows; 1) Problems of current work flow were analyzed through current state mapping(CSM). 2) An improved work flow was suggested through future state mapping(FSM). 3) An improvement effect analysis of information system and lift-up planning was investigated. The study recommends continuous improvement of lift-up &procurement work flow and efficient management of information in building construction as a future research.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2003.05a
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• pp.28-35
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• 2003

자동차 부품기업은 재료비의 비중이 제조원가의 $70\%$이상 차지할 정도로 부품자재의 조달과 공급이 중요한 영역이며, 완성차를 제조하기 위한 공급망관리에 있어서 필수적인 분야라고 할 수 있다. 본 연구는 국내 자동차부품기업을 대상으로 공급망관리(SCM) 기능이 요구되는 부품조달 및 공급을 위한 자동차 부품업체간의 전자상거래를 활성화하기 위한 목적으로 전자조달(e-Procurement) 기업정보포탈(EIP) 시스템의 프로토타입 을 제안하였다. 제안된 e-Procurement EIP 시스템은 완성차 제조를 위하여 부품을 공급하는 1자 공급업체를 중심으로 2차 공급업체와의 부자재 및 MRO, 소모성 자재를 중심으로 하고 있으며 정보의 통합화를 위하여 중소기업간의 협업 프로세스의 개선, 안전한 XML 전자문서의 교환, 구매 일정관리 및 커뮤니티 형성, 부가서비스 기능 둠을 제공함으로써 부품기업간의 효율적인 협업체제 구죽 및 업무 신속성과 업무처리비용을 절감할 수 있다.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2008.11a
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• pp.141-145
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• 2008

Because of world financial crisis, The Korea domestic construction industry has been damaged hugely on material supplying work. A current domestic material supply system can't react properly on a great rise of foreign exchange rate and raw material price, so the system has a problem which is not properly supplying material. To solve this problem, a more innovative material supply work system is seriously needed than ever. So this study wants to improve material supply system for supplying material right time, right place through applying a web-based system. Applying this, overall process of material-supply-work can be done on a web-based system for immediately understanding change of ordering and warehousing by material-supply-schedule to a domestic construction field.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.442-445
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• 2003

The purpose of this study is to present an improved lift-up & procurement work flow for effectiveness of resources increase in building construction. The current lift-up & procurement work flow has some waste factors; complicated information system, connection lack with process and decision-making delay. Therefore the study applied the value stream mapping methodology for improvement of current lift-up & procurement work flow. The main contents of the study are as follows; 1) A problem of current work flow were analyzed through current state mapping(CSM). 2) An improved work flow was suggested through future state mapping(FSM). 3) An improvement effect analysis of information system and lift-up planning The study recommends that continuous improvement of lift-up & procurement work flow and efficient management of information in building construction.

• Korean Journal of Construction Engineering and Management
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• v.5 no.2 s.18
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• pp.106-114
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• 2004

As the scale of construction work is enlarged, complicated and diversified, much construction information from the large number of construction sites is generated and reported to the head office. To control much information generated in construction sites simultaneously, the necessity of supporting system which could extract necessary information is increased. However, comparing with those of large companies, medium-sized companies's organization of head office and management system are weak. So it's difficult to manage multi-projects. Among these site managements, resource management is an important management area. But, resource planning is based on experience and judgement and has not associated with schedule information. So when schedule is changed, the plan must be amended manually. This study investigates material-planning model for multi-project management which is connected with daily report system and scheduling software.

• Construction Engineering and Management
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• v.11 no.3
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• pp.5-7
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• 2010

• Journal of the Korea Institute of Building Construction
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• v.11 no.3
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• pp.319-325
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• 2011

During a construction project, construction managers must be provided with material information to help them to make decisions more efficiently without delaying the delivery of material. Construction work can be smoothly performed with the proper material supply. Construction duration depends on several material-related decisions, including the order, delivery, and allocation of material to the correct work location. Hence, it is worthwhile to introduce data warehouse techniques that generate subject-oriented and integrated data to construction material management. The data warehouse for construction material management can perform multidimensional analysis and then define KPIs (Key Performance Index) in order to provide construction managers with construction material information such as lead time, material delivery rate, material installation rate and so on. This research proposes a method of effectively facilitating large amounts of data in the operating systems during the construction management process. In other words, the proposed method can supply structured and multi-perspective material-related information using data warehouse techniques.

• Proceedings of the Korea Association of Information Systems Conference
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• 2004.11a
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• pp.383-392
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• 2004

최근 정보기술(Information Technology)이 빠르게 변화${\cdot}$발전하면서 새로운 패러다임의 기술들이 속속 등장하고 있다. 그 중 최근 정보시스템 개발 도구에 대한 객체지향 기법의 적용에 관한 관심이 고조되고 있다. 따라서 객체지향 방법론의 개념을 충분히 계승하면서 실제 적용에 있어서 명확하고 효과적이며 적용하기 쉬운 개발 방법론의 필요성이 무엇보다 요구되고 있다. 이러한 취지에서 본 논문에서는 UML을 기반으로 하는 정보시스템 구축 방법론을 제시하고자 한다. 본 방법론의 특징은 UML의 관련 다이어그램들 간의 상호 연관관계를 요구사항 수집 및 분석 단계로부터 시스템 분석 및 설계, 그리고 구현 단계에 이르기까지 체계적으로 정립하였다. 이를 기반으로 정보 시스템의 3대 구성요소인 DB, 비즈니스 로직을 위한 코드, GUI 폼이 일관성 있게 생성될 수 있도록 하고 있다. 본 연구에서 제시된 UML 기반의 정보시스템 개발 방법론의 유용성(Usability)을 보여주기 위하여, 자동차 부품공급업체(1차 벤더)인 'H'사와 그 협력업체들(2차 벤더) 간의 자재발주 및 납품업무 프로세스를 대상으로 본 방법론의 선계절차를 따라서 정보시스템의 분석 및 설계 작업을 수행하였다. 이를 기반으로 인터넷 기반의 EDI 시스템의 프로토타입(Prototype) 시스템을 개발하였다.