• 한국전자거래학회:학술대회논문집
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• 한국전자거래학회 1999년도 종합학술대회발표논문집
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• pp.780-797
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• 1999

ㆍ eProcurement Services ㆍ eBusiness Security Services ㆍ Electronic Data Interchange(EDI) ㆍ Enterprise-scale Project Management and Accountability (omitted)

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.415-419
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• 2015

Engineering is a value-adding process applying knowledge and skills in the construction industry that includes the planning, feasibility study, project management (PM), front end engineering and design (FEED), detail design, procurement, construction, supervision, and operation. Among these engineering activities, FEED is defined as a comprehensive design practice in the early design phase focused on conceptual design and basic design. It is a particularly influencing area that determines the competitiveness of procurement and construction capability of construction firms (KNIN 2013). Nevertheless, previous studies in FEED have been limited to the design process, deliverable, or particular management technique (e.g. system engineering, collaboration, information etc.). In this context, the purpose of this study is to propose a comprehensive FEED business process structure for project management of thermal power plant construction projects encompassing the entire project life cycle. And an assessment methodology for FEED functions was developed. It is expected that the proposed structure of FEED functions and FEED evaluation methodology will contribute to improvement of competitive capability of engineering, procurement, and construction (EPC) companies.

• 경영정보학연구
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• 제5권2호
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• pp.53-69
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• 2003

본 논문은 구매품목의 특성을 결정하는 요인인 구매품목의 중요도와 구매과정의 복잡도가 기업의 관계형 전자조달에 미치는 영향관계를 규명하였다. 먼저, 선행연구들을 검토하여 구매품목의 중요도와 구매과정의 복잡도에 대한 세부요인들을 도출하였으며, 이들 요인에 대한 신뢰성 검정과 타당성 검정을 수행하였다. 이어서, 다항 로지스틱 회귀분석을 이용하여 이들 요인이 관계형 전자조달에 미치는 영향관계를 분석하였다. 그 결과, 관계형 전자조달로 구매되는 품목들은 구매처리의 복잡한 정도보다는 품목자체의 중요도에 더 크게 영향을 받는다는 사실을 확인하였다. 이 과정에서 주로 EDI를 통하여 이루어지던 관계형 전자조달의 관행이 점차 구매사이트를 통한 거래로 확대되고 있음을 발견하였다.

• 시스템엔지니어링학술지
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• 제14권1호
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• pp.52-62
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• 2018

A software support system, called procurement engineering management support system (PeMSS), is currently under development through a joint research project. The procurement-related scenarios considered in this research is as follow: an EPC (Engineering, Procurement and Construction) company receives an EPC project contract and starts the project to deliver the agreed system to the acquirer. In order to acquire the required equipments that the EPC company does not produce by itself, it eventually interacts with subcontractors, also called vendors. The EPC company responsibilities during the procurement activities are twofold. First, the EPC company has to guarantee that it has ordered the equipment, through issuing Purchase Order (PO), based on the requirements stated in the contract. Second, the EPC company has to verify that the received equipment designs, called Vendor Print (VP), meet the specifications in the PO, before finally acquiring the equipments. During our survey study, we discovered that EPC company takes a lot of time and effort to create PO and verify VP, mainly because these activities are performed manually by the responsible engineers. Therefore, we intent to support the above activities by developing a support system to the legacy procurement system that can trace the requirements from the contract to the PO and VP, among other functionalities. At the time of the writing of this paper, PeMMS is still under-development, thus, in this paper we focus on presenting the development steps of PeMMS using systems engineering theory and introducing the PO creation function. Wholly, PeMSS attempts to reduce the time and effort of engineers on the procurements activities while also increasing the quality of the procurement outcomes.

• 경영과학
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• 제29권3호
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• pp.121-134
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• 2012

In this study, we consider a component procurement planning problem where the procurement amounts of components are determined under assemble-to-order systems with demand uncertainty. In the problem, procurement amount of each component is decided before the demands of finished products are known and after the demands are identified the assembly amounts of the finished products are decided. In this study, the objective function of the problem is minimizing the total costs which are composed of purchase and inventory costs of the components and the backorder costs of the finished products. We assume that the uncertain demand information is given as multiple scenarios of the demands, and we propose procurement planning methods based on stochastic models which considering the multiple demand scenarios. To evaluate the performances of the proposed methods, computational experiments were carried out on the proposed methods as well as benchmarks including a method based on deterministic mathematical model and a heuristic. From the results of the computational tests, the superiorities of the proposed methods were shown.

• 대한안전경영과학회지
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• 제16권1호
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• pp.159-168
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• 2014

This paper study is to identify the effect of quality certification incentives regulations to a firm. The pur purpose of this study is to propose the right way of improvement and policy by conduct research for quality certification incentives regulations, which applied by public procurement service for office furniture. For more accuracy, this study analyze the result of questionnaire, visiting, telephone survey conducted by office furniture manufacturer those are registered in MAS (Multiple Award Schedule System).

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.991-994
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• 2007

세계 플랜트시장은 2003년 이후 오일달러의 강세와 BRICs의 경제성장 및 에너지 다소비 국가들의 자원 확보경쟁 심화의 영향으로 연평균 6%대의 높은 성장을 보이고 있으며 당분간 지속될 것으로 보인다. 플랜트 프로젝트를 성공적으로 이끌기 위해서는 원가의 50$^{\sim}$60%를 차지하고 있는 구매조달 업무가 중요하며, 이를 효과적으로 이루기 위해서는 공급자들의 정보관리가 요구 되고 있다. 하지만 현재 개발되어 있는 공급자 관리 시스템들은 공급자들의 단순 정보나 성과관리 자료만 관리하고 있는 상황이다. 이에 공급자들의 정보관리를 통해 공급자와의 긴밀한 관계를 구축하고자 하며 이렇게 축적된 DB를 바탕으로 의사결정시스템을 도입한 공급자관리 시스템을 제시하였다. 본 논문은 기업 간 전자 입찰 거래환경에서 공급자를 선택하는 의사결정의 어려움과 위험을 감소시켜 주고 기업의 구매조달 프로세스에 효율을 증대 시켜 줄 것이다.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2002년도 학술대회지
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• pp.371-374
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• 2002

본 연구는 커튼월 공사의 적시생산(Just-In-Time; JIT) 관리를 지원할 수 있는 양중조달관리 시스템의 개발 방향의 제시를 목적으로 하고 있다. 이를 위해서 건설업에 있어서 적시생산의 개념을 살펴본 후, 커튼월 자재의 속성을 파악하고 현장과 문헌조사를 통하여 현장 물류관리의 문제점을 파악하였다. 이러한 문제점에 대한 해결방안으로서 본 연구에서는 커튼월 공사의 JIT 관리를 위한 양중 조달 시스템의 개발 방향을 제시하였다.

• 한국건설관리학회논문집
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• 제5권1호
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• pp.133-139
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• 2004

최근 도심지 고층건축공사가 증가하면서 건설자원의 효율적인 관리가 중요시되고 있으나 현재 국내 건설현장에서 건설자재의 공급에 대한 많은 문제점을 가지고 있다. 공정과 연계되지 못한 자재의 조달 및 양중은 현장 내 재고 증가 및 작업지연을 유발하며, 복잡한 정보전달 체계는 관련 작업의 의사결정의 지연의 원인으로 작용하여 결과적으로 공사기간에 절대적인 영향을 미치고 있다. 따라서 공정진행을 고려한 조달 및 양중작업에서 각 공사담당자간의 효율적인 정보전달 체계의 구축은 효과적인 공사수행을 위해 필수적이다. 본 연구에서는 사례조사를 통해 건설자재의 조달 및 양중작업의 문제점을 분석하여 가치흐름분석을 통해 구체적인 낭비요소를 추출한 뒤, 공사참여자간의 의사소통 체계를 구축 및 양중계획 업무흐름 개선방안을 제시하였다. 개선방안은 web을 기반으로 한 조달 및 양중시스템의 전반적인 체계로서 활용될 것이다.

• Advances in Computational Design
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• 제4권2호
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• pp.119-139
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• 2019

Planning and management building projects should tackle the coordination of works and the management of limited spaces, traffic and supplies. Activities cannot be performed without the resources available and resources cannot be used beyond the capacity of workplaces. Otherwise, workspace congestion will negatively affect the flow of works. Better on-site management allows for substantial productivity improvements and cost savings. The procurement system should be able to manage a wider variety of materials and products of the required quality in order to have less stock, in less time, using less space, with less investment and avoiding multiple storage stations. The objective of this paper is to demonstrate the advantages of using the Chronographic modeling, by combining spatiotemporal technical scheduling with the 4D simulations, the Last Planner System and the Takt-time when modeling the construction of building projects. This paper work toward the aforementioned goal by examining the impact that material flow has on site occupancy. The proposed spatiotemporal model promotes efficient site use, defines optimal site-occupancy and workforce-rotation rates, minimizes intermediate stocks, and ensures a suitable procurement process. This paper study the material flow on the site and consider horizontal and vertical paths, traffic flows and appropriate means of transportation to ensure fluidity and safety. This paper contributes to the existing body of knowledge by linking execution and supply to the spatial and temporal aspects. The methodology compare the performance and procurement processes for the proposed Chronographic model with the Gantt-Precedence diagram. Two examples are presented to demonstrate the benefits of the proposed model and to validate the related concepts. This validation is designed to test the model's graphical ability to simulate construction and procurement.