프로젝트 예비비 편성 방법에 관한 연구 = Contingency and Management Reserves Estimation Method for Project Budget

다국어 초록 (Multilingual Abstract)

Many organizations have transformed their business in order to survive and compete in the future. They generate projects by creating a vision, using strategies and objectives with funds aligning strategies and make efforts to complete them successfully because project success leads to business success. All projects have triple constraints such as scope, time, and cost to be completed.
Project cost performance is a key factor to achieve project goals and which is mostly related with risks among various cost drivers. Projects require a cost estimation method to complete them within their budget and on time. An accurate budget cannot be estimated due to the uncertainties and risks. Thus some additional money should be funded in addition to the base budget as a contingency reserve for identified risks and a management reserve for unidentified risks. While research on contingency reserve for identified risks included in project budget baseline have been presented, research on management reserve for unidentified risks included in total project budget is still scarce. The lack of research on estimation method and role of the management reserve have made project managers little confidence to estimate project budget accurately with reasonable basis. This study proposes a practical model to estimate budgets including contingency and management reserves for not only project cost management but also to keep the balance of organization’s total funds to maximize return on investments for project portfolio management.
The advantages of the proposed model are demonstrated by its application to construction projects in Korea and the processes to apply this model for verification are also provided.

참고문헌 (Reference)

1 정하성, "프로젝트 위험관리강화를 통한 원가개선의 6시그마 사례" 한국품질경영학회 33 (33): 135-148, 2005

2 김종열, "클레임코스트를 고려한 프로젝트의 시간-비용 혼합정수계획모형" 한국산업경영시스템학회 34 (34): 97-105, 2011

3 Dikmen, I., "Using fuzzy risk assessment to rate cost overrun risk in international construction projects" 25 (25): 494-505, 2007

4 Flyvbjerg, B. H., "Understanding Costs in Public Works projects : Error or Lie?" 68 (68): 279-295, 2002

5 Baccarini, D., "The Maturing Concept of Estimating Project Cost Contingency-A review" Curtin University Library 2006

6 Chenyun, "The BP Artificial Neural Network Model on Expressway Construction Phase Risk" 4 : 409-415, 2012

7 Xenidis, Y., "Risk Based Budgeting of Infrastructure Projects" 74 : 478-487, 2013

8 Moshelhi, O., "Risk Assessment and Contingency Estimating"

9 Chapman, C., "Project Risk Management the required transformations to become project uncertainty management" 2000

10 Smith Peter, "Project Cost Management-Global Issues and Challenges" 119 : 485-494, 2002

11 Oberlender, G. D., "Predicting accuracy of early cost estimates based on estimate quality" 127 (127): 173-182, 2001

12 PMI(Project Management Institute), "PMBOK Guide 5th"

13 Sato, T., "Optimum budget allocation method for projects with critical risks" 31 (31): 126-135, 2013

14 Clark, D. E., "Monte Carlo Analysis : Ten years of Experience" 43 (43): 40-45, 2001

15 Eldosouky, A. A., "Management of Construction Cost Contingency covering upside and downside risks" 53 (53): 863-881, 2014

16 Thomson, P.A., "Engineering Construction Risks" Thomas Telford 1992

17 Idrus, A., "Development of project cost contingency estimation model using risk analysis and fuzzy expert system" 38 (38): 1501-1508, 2011

18 Hillson, D., "Developing effective risk responses" PMI 1999

19 Carr, R. I., "Cost-estimating principles" 115 (115): 545-551, 1989

20 Barraza, G. A., "Cost Contingency Management" 23 (23): 140-146, 2007

21 Kim, G. H., "Comparison of Construction Cost Estimating Models based on Regression Analysis" 34 (34): 34-47, 2004

22 Zhu, B., "Analysis and Evaluation of Project Cost Risk Based on BP Algorithm" 1 : 264-270, 2011

23 Book, S.A., "Allocating Risk Dollars Back to Individual Cost elements" 2007

24 Carr, V., "A fuzzy approach to construction project risk assessment and analysis" 32 (32): 847-857, 2001

25 Uzzafer, M., "A contingency estimation model for software projects" 31 (31): 981-993, 2013

26 Garvey, P. R., "A Scenario-Based Method for Cost Risk Analysis" 1 (1): 65-76, 2008

27 NASA, "2008-NASA-Cost-Handbook-FINAL_v6[1].pdf"