Research Article Integrated Cost and Schedule Control Systems for Nuclear Power Plant Construction: Leveraging Strategic Advantages to Owners and EPC Firms Youngsoo Jung, 1 Byeong-Suk Moon, 2 Yun-Myung Kim, 3 and Woojoong Kim 2 1 College of Architecture, Myongji University, Yongin 449-728, Republic of Korea 2 Central Research Institute, Korea Hydro & Nuclear Power Co., Ltd., Daejeon 305-343, Republic of Korea 3 Project Management Department, KEPCO Engineering and Construction Company, Inc., Yongin 446-713, Republic of Korea Correspondence should be addressed to Youngsoo Jung; yjung97@mju.ac.kr Received 3 December 2014; Accepted 8 February 2015 Academic Editor: Alejandro Clausse Copyright © 2015 Youngsoo Jung et al. his is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. As the owners expect that the cost and time for nuclear power plant construction would decrease with new entrants into the market, there will be severer competition in the nuclear industry. In order to achieve performance improvement and to attain competitive advantages under the globalized competition, practitioners and researchers in the nuclear industry have recently exerted eforts to develop an advanced and eicient management methodology for the nuclear mega-projects. Among several candidates, integrated cost and schedule control system is of great concern because it can efectively manage the three most important project performances including cost, time, and quality. In this context, the purpose of this paper is to develop a project numbering system (PNS) of integrated cost and schedule control system for nuclear power plant construction. Distinct attributes of nuclear power plant construction were investigated irst in order to identify inluencing variables that characterize real-world implementation of advanced cost and schedule controls. A scenario was then developed and analysed to simulate a case-project. By using this case-project, proposed management requirements, management methods, measurement techniques, data structure, and data collection methods for integrated cost and schedule PNS were illustrated. Finally, indings and implications are outlined, and recommendations for further research are presented. 1. Introduction Due to recent new entrants into the nuclear construction industry, it was reported by Richardson [1] that “the nuclear industry is rapidly globalizing. As it does so, there will be sharper vendor competition. Cost and construction time are expected to fall, and more countries will opt for nuclear power.” Under this globalized intense competition, owners and companies in the nuclear industry strive to enhance the quality, cost, and time for nuclear construction projects. Efectively managing three major performances of qual- ity, cost, and time is the utmost objective for any construction project. It is known that, up to date, the most advanced and systematic method for managing these three performances in an integrated way is “earned value management system” (EVMS). However, additional management efort required to collect and maintain detailed data for EVMS has been highlighted as a major barrier to utilizing this concept over a quarter of a century [2–4]. his argument is especially factual for a nuclear power plant (NPP) construction project due to its gigantic size and distinct complexity. In order to maximize the beneits that this integration has to ofer, methodologies, techniques, and tools to reduce the work- loads for integrated cost and schedule control should be investigated in a comprehensive manner. Nevertheless, there has been no previous research addressing these issues for nuclear power plant (NPP) construction. Furthermore, there has been no legitimate study that proposed a comprehensive EVMS numbering system encompassing project life cycle. In this context, the purpose of this paper is to develop a methodology of formulating project numbering system (PNS) for nuclear power plant construction EVMS. A well- deined PNS not only efectively optimizes EVMS work- loads for on-going projects but also signiicantly improves Hindawi Publishing Corporation Science and Technology of Nuclear Installations Volume 2015, Article ID 190925, 13 pages http://dx.doi.org/10.1155/2015/190925