• 산업경영시스템학회지
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• 제36권3호
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• pp.87-94
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• 2013

The progress that becomes a basis for measuring the outcome of project is a core of project control. Follow-up corrective actions are determined depending on the degree of their differences. The methods of measuring the project progress have been developed though a variety of research and many were verified through the cases. Among such methods, this study selected Start/Finish method and Fixed Formula method. In order to check the limitations of the progress utilized in the two methods, the study compared their progresses to the progress of Percentage Complete method and analyzed the differences shown in their actual applications. Through this, it suggested the forms and scale of the projects appropriate to the application of Fixed Formula method. As for the research progress method, the study first generated a number of virtual project schedules for the establishment of an analysis model. These project schedules were varied in a way that they had different project periods and the number of different activities. The study also generated numerous project schedules for difference test. After establishing a virtual schedule plan by the scale of projects, it measured their progresses by period, analyzed the differences and repeated this procedure to obtain the results.

• 국제학술발표논문집
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• The 5th International Conference on Construction Engineering and Project Management
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• pp.352-358
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• 2013

As amount of information in construction industry is growing, the role of information system in project management is becoming increasingly important. With the emerging IT application to the advancing construction industry, construction project management system with advanced technology has been progressed vigorously to improve construction productivity and management efficiency. Recently, a web-based Project Management Information System (PMIS) is developed to support decision-making process by efficiently managing project related information generated from various discipline. Many firms are in the process of developing the PMIS system or already have been applied the system to various projects. However, PMIS is still in its early stage of development to be applied at industrial plant construction projects that process management is significantly emphasized for the successful execution of the project. With the complexity of the industrial plant projects, the industry practitioners need to be able to visualize the construction schedule information to manage the project efficiently. This study suggests methodologies for improving PMIS specialized for industrial plant piping construction projects to estimate the baseline schedule and performance measurement more accurately by developing a framework for the piping construction projects. By using this developed system, the researchers expect that piping construction projects will be more efficiently managed on a real-time basis through measuring progress of piping at each and every state of progress milestone and provide management with opportunities to forecast the level of efforts required to execute the remaining work scope in a timely manner

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.608-611
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• 2015

The objectives of this research are 1) control of schedule or improvement of management for aerial environment, 2) distribution of responsibility to the parties concerned (factory, material company, construction company, design and engineering, occupancy). The results show the relative priority of the four major items in wall-based apartment buildings and in column-based apartment buildings. An analysis of the parties responsible for improvement based on the IAQ results shows more efforts to improve IAQ are needed in material factories and engineering/design companies.

• 문화기술의 융합
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• 제9권6호
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• pp.1173-1178
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• 2023

현대 사회에서는 효율성을 강조하여 조직 내 팀 프로젝트와 개인 업무를 세부 계획으로 이끄는 경향이 있다. 24시간 일상에서 시간을 효과적으로 활용하는 능력은 성실함의 지표로 여겨지며, 사람들은 계획적이고 조직적인 사람들을 모방하고 다양한 시스템을 활용하여 일상을 관리하려고 노력한다. 주어진 업무를 효율적으로 수행하려는 이유는 정해진 기간 내에 작업을 완료함으로써 프로젝트의 성패에 영향을 미치기 때문이다. 프로젝트 일정을 소홀히 할 경우, 성공적인 결과를 위협하는 큰 위험으로 여겨집니다. 이는 조직의 대형 프로젝트뿐 아니라 개인의 생활에서도 같이 적용되며, 시간 기반의 효율적인 관리를 강조하는 다양한 일정 관리 도구를 활용한다. 프로젝트 관리에서는 단순히 '오늘'을 기준으로 하는 것이 아니라 세부 업무 진행 상황을 주의 깊게 파악하는 것이 필요하다. 본 논문에서는 우리는 사용자가 속한 프로젝트에 날짜가 아닌 업무 단위로 접근하여 일정을 관리할 수 있는 안드로이드 애플리케이션을 제안하고 그 구현 내용을 소개한다. 본 논문에서 우리가 구현한 애플리케이션은 사용자가 속한 프로젝트를 등록하여 프로젝트의 목표 및 일정을 관리할 수 있다. 더불어, 프로젝트 전체 또는 개별 목표 진행률을 가시화하여 업무에 효율적으로 접근할 수 있는 기능을 제공한다. 이로써 사용자들은 본 논문에서 우리가 제안하는 애플리케이션을 활용하여 본인이 속한 프로젝트에 전념하며 업무 단위로 일정을 관리함으로써 프로젝트의 전반적인 효율을 향상할 수 있다.

• Architectural research
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• 제12권1호
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• pp.57-64
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• 2010

In recent years, interests and studies on the urban regeneration projects have been increased and largely conducted. It is a part of the effort that solves some social and economical problems occurred by deteriorated buildings and degraded infrastructures through new urban regeneration projects or redevelopment projects. However, the urban regeneration projects show the characteristics that can not guarantee in the project performance because the projects have various and complex stakeholders related to these projects and are exposed to lots of risks due to its huge scale. This study proposed the risk performance index method to improve the efficiency of the overall performance measurement for a mega-project by extending from the traditional cost/schedule based performance measurement system. The risk performance index method proposed in this study has a similar system to the EVMS, and makes possible to perform a three dimensional integrated performance measurement in cost/schedule/risk through 18 different indexes that compose the risk performance index.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1591-1598
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• 2009

Recently, the researches on the urban regeneration projects have been performed very actively. It is a part of the effort that solves some social and economical problems occurred by deteriorated buildings and degraded infrastructures through new urban regeneration projects or redevelopment projects. However, the urban regeneration projects show the characteristics that can not guarantee in the project performance because the projects have various and complex stakeholders related to these projects and are exposed to lots of risks due to its huge scale. This study proposed the risk performance index method to improve the efficiency of the overall performance measurement for a mega-project by extending from the traditional cost/schedule based performance measurement system. The risk performance index method proposed in this study has a similar system to the EVMS, and makes possible to perform a three dimensional integrated performance measurement in cost/schedule/risk through 18 different indexes that compose the risk performance index.

• 국제학술발표논문집
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• The 1th International Conference on Construction Engineering and Project Management
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• pp.941-946
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• 2005

It is essential for project managers to make schedule adjustment based on their professional experience, in terms of rescheduling action discussed in this paper. This paper discusses the topics of resource-constrained construction rescheduling by modifying the concepts of manufacturing rescheduling. Moreover, the influence factors of construction rescheduling problems are investigated and identified in this paper. According to initial schedule plan and present progress, a new rescheduling mechanism based on Constraint Programming (CP) techniques is developed to reschedule projects with the objective of minimizing total project cost or duration, under three rescheduling policies. Through case study, the behavior of three different rescheduling policies is analyzed and discussed in this paper.

• 국제학술발표논문집
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• The 6th International Conference on Construction Engineering and Project Management
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• pp.371-375
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• 2015

Design-Build (DB) has gained in popularity in roadway projects due to its defining advantage to improve communication and fast-track project delivery. However, very little is known about the impact of change order frequency and occurrence timing pertaining to DB projects. The study analyzes their impacts on project time and cost performance by conducting a rigorous numerical analysis drawing on 530 3R (rehabilitation, reconstruction, and resurfacing) projects completed between 2002 and 2011 in Florida by using a multiple linear regression. The results indicate that DB outperformed Design-Bid-Build in project cost as well as time. Critically, the regression analysis signifies that earlier change order occurrence caused more unfavorable impacts on schedule and cost. The proposed analyses and models will lead to the improved ability of agencies to quickly and more reliably estimate the potential change order impacts on schedule and cost.

• 국제학술발표논문집
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• The 4th International Conference on Construction Engineering and Project Management Organized by the University of New South Wales
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• pp.395-398
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• 2011

This paper introduces stochastic cash-flow modeling integrated with simulation based scheduling. The system makes use of CPM schedule data exported from commercial scheduling software, computes the best fit probability distribution functions (PDFs) of historical activity durations, assigns the PDFs identified to respective activities, simulates the schedule network, computes the deterministic and stochastic project cash-flows, plots the corresponding cash flow diagrams, and estimates the best fit PDFs of overdraft and net profit of a project. It analyzes the effect of different distributions of activity durations on the distribution of overdrafts and net profits, and improves reliability compared to deterministic cash flow analysis.

• 한국건축시공학회지
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• 제18권4호
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• pp.385-394
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• 2018

오피스 건축물의 리모델링 사업에서, 신축과는 다른 리모델링 사업의 다양한 리스크로 인해 공기가 지연되는 사례가 빈번하게 보고되고 있다. 이에 본 연구에서는 리모델링 프로젝트의 리스크 요인들과 리모델링 공사의 작업별 공기지연 발생가능성의 관계를 분석하고자 수행되었다. 리모델링 사업의 경험이 있는 29명의 전문가 면담결과의 과학적 통계적 분석을 통해, 리모델링 사업의 리스크 요인과 그로 인한 작업별 공기지연 가능성을 크게 3가지 측면에서 분석하였다. 즉, (i) 리모델링 공사의 작업별 공기지연 가능성, (ii) 리모델링 공사의 리스크 요인별 중요도, (iii) 리모델링 공사의 공기지연에 영향을 미치는 리스크 요인 등 세가지 분석결과를 제시하였다.