• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.366-370
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• 2005

The construction environment is dynamic in nature and is characterized by various degrees of uncertainties. The uncertainties such as lack of coordination, non availability of resources, condition of temporary structures and varying weather conditions have a significant impact on estimating the duration of activities. These are subjective, vague and imprecisely defined and are expressed in subjective measures rather than mathematical terms. Conventionally, various quantitative techniques such as CPM and PERT have emerged in construction industry. These techniques cannot solve the above problems and rely on human experts which may not always be possible. In such situations Artificial Intelligence tools such as fuzzy sets and neural networks handle such variables and provide global strategies. The present paper evaluates the effect of qualitative factors to identify the activity duration using new intelligent approach. The results are compared with conventional methods for effective project management. A case study is considered to demonstrate the applicability of fuzzy logic for project scheduling.

• 한국건설관리학회:학술대회논문집
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• 한국건설관리학회 2007년도 정기학술발표대회 논문집
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• pp.25-31
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• 2007

누리꿈스퀘어 프로젝트는 서울 상암동 DMC(Digital Media City) 지역에 조성되는 IT Complex로서, 다양한 기능의 건물들이 복합적으로 구성되어 있다. 또한 설계${\cdot}$시공 일괄입찰방식으로 발주되어 설계단계에서부터 시공단계에 이르기까지 쳬계적인 건설사업관리를 요구하는 프로젝트이다. 본 연구에서는 실무적 차원의 건설사업관리 업무에 대한 이해를 돕기 위하여, 누리꿈스퀘어 프로젝트의 건설사업관리 업무를 소개하고, 주요 수행 사례에 대하여 분석하였다. 또한 본 프로잭트를 수행하면서 경험한 현행 건설사업관리 업무의 문제점을 정리하였고, 이에 대한 개선 방안을 제안하였다. 마지막으로 다년간의 건설사업관리 업무 경험을 토대로 향후 건설사업관리 제도가 발전하기 위한 방안을 제시하였다.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.243-251
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• 2013

Cash management is a major concern for all contractors in the construction industry. It is arguable that cash is the most critical resource of all. A contractor needs to secure sufficient funds to navigate the project to the end, while keeping an eye on maximizing profits along the way. Past research attempted to address such topic via developing models to tackle the time-cost tradeoff problem, cash flow forecasting, and cash flow management. Yet, little was done to integrate the three aspects of cash management together. This paper, as such, presents a comprehensive model that integrates the time-cost tradeoff problem, cash flow management, and cash flow forecasting. First, the model determines the project optimal completion time by considering the different alternative construction methods available for executing project activities. Second, it investigates different funding alternatives and proposes a project-level cash management plan. Two funding alternatives are considered; they are borrowing and company own financing. The model was built as a combinatorial optimization model that utilizes ant colony search capabilities. The model also utilizes Microsoft Project software and spreadsheets to maintain an environment that incorporates activities, their durations, and other project data, in order to estimate project completion time and cost. Ant Colony Optimization algorithm was coded as a Macro program using VBA. Finally, an example project was used to test the developed model, where it acted reliably in maximizing the contractor's profit in the test project.

• 한국건설관리학회논문집
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• 제5권1호
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• pp.140-148
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• 2004

본 연구는 건설 프로젝트 관리의 틀로서 이전 연구에서 제시된 CMBOK Framework을 이용하여 각 관리요소간의 상호작용을 분석하고, 이들 상호작용현상의 중심에 있는 12가지의 핵심관리요소를 추출하여 제시하였다. 또한, 이들 핵심관리요소에 대한 실제 건설 프로젝트 관리현장의 사례를 통하여 핵심관리요소로서의 활용 타당성을 검증하였다. 이러한 핵심관리요소의 건설산업 활용을 통하여 건설 프로젝트 관리 업무의 과학화와 효율성 향상이 기대된다.

• Journal of Construction Engineering and Project Management
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• 제5권1호
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• pp.1-10
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• 2015

In construction, stakeholders of extended project team play a key role in the overall project performance. Successful integration of stakeholders demands for good management practices at strategic, operational and project levels. Targets and measures to improve the stakeholder performance encourage the creativity and willingness of stakeholders of extended project team to develop the better ways to achieve the project objectives. This paper presents a generic descriptive method, showing how stakeholder's ability and influence impacts on project performance in the construction sector. The findings of a series of interviews with key informants are presented and the following main conclusion is drawn: improving project performance through stakeholder's contribution and measuring their performance can strengthen the project performance. This innovative approach which redefines the process of improving the project performance in construction projects will be of interest to those who intend to manage the projects in practice as well as to those who interested in advancing theory.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.145-150
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• 2013

As a recent global trend, the majority of mega-size plant projects are delivered through EPC (Engineering, Procurement and Construction) contracts, where a single contract is awarded for engineering, procurement, and construction. Under this contracting mechanism, it is challenging for contractors to carry out the projects under traditional project management processes used in design-bid-build projects. A new EPC Plant, the POSCO Special Steel Plant in Changwon, was built successfully at the beginning of 2012 and it is currently in full-scale production. The project has encountered a number of major difficulties however, with some technical and managerial issues through its development process. As summarized in this paper, the authors (as project participants with the contractor) investigated it as a post construction analysis and recorded the Lessons-learned for future project management improvement.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.6-9
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• 2015

Traditional project management theory is based on a three-dimensional life cycle approach where the project managerseeks to optimize the dimensions of cost-schedule-technical (quality or design). This paper reports the findings of a case study analysis of two complex mega-projects in Michigan which confirm the findings of previous research and illustrates the use of a framework for five-dimensional project management (5DPM) that is for conceptualizing a complex project's scope of work. The framework elevates the recognition that the project's social/political context and the financial arrangements create complexity adding two new dimensions. This paper also demonstrates a methodology to graphically display a project's complexity to better understand and prioritize the available resources. The result is a "complexity footprint" that may help a complex project manager identify the boundary between controllable and uncontrollable projects impacts. The paper finds that applying 5DPM to the two case study projects has given the project delivery team a tool which is actually adding value to the complex project management process.

• 한국건설관리학회논문집
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• 제21권1호
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• pp.3-11
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• 2020

다년간 수행해야 하는 일정규모이상의 대형 공공건설공사에서 발주기관은 건설사업관리자의 건설사업관리업무를 위해 예산을 확보해야 한다. 발주기관이 확보하는 사업관리예산과 발주기관이 집행하는 사업관리예산이 동일할 경우 문제가 없지만, 그렇지 않을 경우 다양한 문제가 발생하게 된다. 실제로 건설기술진흥법에는 건설기술선진화를 위해 책임감리를 없애고 건설사업관리를 명시하였으나 기획재정부의 총사업비관리지침에는 책임감리라는 용어를 사용하고, 이에 따라 발주기관이 예산을 청구하도록 하고 있다. 따라서 발주기관의 예산확보와 예산집행사이에 괴리가 발생함으로 인해 건설사업관리업무를 수행해야 하는 현장에서는 많은 어려움을 호소하고 있다. 이에 본 연구에서는 건설사업관리가 효율적으로 운용될 수 있도록 다음과 같은 제도적 개선방안을 제시하였다. 첫째, 법령과 정부기관의 지침 등에 명시된 건설사업관리 용어와 업무를 단일화해야 하며 대가산정기준을 통일해야 한다. 이에 본 연구에서는 건설사업관리가 효율적으로 운용될 수 있도록 다음과 같은 제도 개선방안을 제시하였다. 첫째, 법령과 정부기관의 지침 등에 명시된 건설사업관리 용어와 업무를 단일화해야 하며 대가산정기준을 통일해야 한다. 둘째, 탈락한 건설사업관리자가 기술제안서 보상비를 지급받을 수 있도록 총사업비관리지침에 명시해야 한다. 셋째, 장기계속공사에서 사업비가 변경될 경우 그에 따라 건설 사업관리비가 조정될 수 있어야 한다. 넷째, 발주기관에서 건설사업관리업무가 필요하다면 전문기관에 위탁할 수 있는 근거를 총사업비관리지침에 명시해야 한다.

• 국제학술발표논문집
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• The 8th International Conference on Construction Engineering and Project Management
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• pp.41-49
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• 2020

Concurrent construction offers considerable improvement for shorten the project duration of its production process. Therefore, standardized concurrent construction is widely applied in building construction projects. However, resources planning for standardized concurrent construction project is manually developed by construction manager. This practice is not effective since it is time-consuming and error-prone for managers to identify all project-specific information, distinguish different activity-resource types, interpret these types and analyze how they affect resource allocated on an ad hoc basis. Therefore, this research investigates the opportunity for leveraging activity modeling to enable automated resource planning for standardized concurrent construction during project development, with identifying the characteristics of construction activities under standardized concurrent planning and determining the activity-resources types that affects resource planning. Both will function as a basis for modeling these construction activities in a computer-interpretable manner and for automation in resource planning.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.183-187
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• 2015

The Risk Management (RM) is applied for managing uncertainty of project. In this circumstance, the competences of RM have a direct effect on the performance of its application. Especially, as the RM, one of the project management areas, is a peopleoriented management field, the individual behavioral competences are significant for a risk manager. Therefore, this paper describes the development of individual behavioral competences for construction project risk manager. For this, the research classifies the individual behavioral competences of RM. And, the Exploratory Factor Analysis (EFA) are applied to verify a validity of the competences. Likewise, a reliability analysis using Cronbach's alpha values is performed to test internal consistency. Based on the results, the authors carry out the Focus Group Interview (FGI) on expert panels of construction RM to confirm the hierarchical model of the individual behavioral competences. It is concluded that the proposed hierarchical model of individual behavioral competences helps construction companies to diagnose the competences of their project risk manager for progressing.