• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.442-445
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• 2002

Construction delay claim occurs more often than any other claim. Delay claim impacts adversely the company's existence as well as the project's monetary problem. Because the calculation of the delay is not quantitative, owing not to have enough evidence, it is hard to solve evenly the delay claim. So, it is need to cumulate structurely the construction data or evidence during the construction. This study considers the established study about construction delay claim database and the problems and then presents the relation method between phase schedule and database. Finally, this study established the productivity claim database modeling for construction project through conceptual database modeling and logical database modeling based on information needed to make construction productivity database. So. the purpose of the study is to establish the datamodel for productivity management of construction project for calculating the delay days considering the lost productivity.

• Journal of the Korea Institute of Building Construction
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• v.11 no.2
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• pp.100-107
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• 2011

As construction duration significantly influences the performance and the success of construction projects, it is necessary to appropriately manage the impact factors affecting construction duration. Recently, interest in the construction industry has been rising due to the recent change in the construction legal system, and the competition among the construction companies on construction time. However, the impact factors are extremely diverse. The existing productivity data on impact factors is not sufficient to properly identify the impact factor and measure the productivity from various perspectives, such as subcontractor, time, crew, work and so on. In this respect, a multidimensional analysis by a data warehouse is very helpful in order to view the manner in which productivity is affected by impact factors from various perspectives. Therefore, this research proposes a method that effectively takes the diverse productivity data of impact factors, and generates a multidimensional analysis. Decision tree analysis, a data mining technique, is also applied in this research in order to supply construction managers with appropriate productivity data on impact factors during the construction management process.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2007.11a
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• pp.306-311
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• 2007

Proper management of construction productivity is one of the main drivers of project success. This research focuses on the development of a construction productivity analysis system based on Web and OLAP in order to effectively manage construction productivity. Throughout the research effort, a construction productivity analysis system was modeled using IDEFO & ERD techniques and was deployed on the WWW(World Wide Web). Based on the system modeling, this research studies the methodology for system development of construction productivity that can consult the decision of managers on job site.

• Proceedings of the Korea Technology Innovation Society Conference
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• 2006.11b
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• pp.355-368
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• 2006

본 연구는 1982년부터 2002년까지 우리나라 15개 산업부분의 패널자료를 이용하여 지식생산함수추정을 시도하였다. 해당 산업부문의 지식생산활동에서 서로 다른 산업부문간에 산호작용영향이 중요하다는 관점을 고려하여 Mark et al. (2005)이 제시한 DSUR(Dynamic Seemingly Unrelated Regression)추정량을 이용하여 관련된 지식생산함수의 모수를 추정하였다. 본 연구의 추정결과를 살펴보면, 우리나라 지식생산함수에서 연구원 규모가 지식생산에 기여하는 탄력성정도는 0.25이며, 기존 지식축적량이 기여하는 탄력성정도는 0.353으로 나타났다. 이러한 실증분석 결과는 우리나라의 경우에 기존 지식축적량이 새로운 지식생산에 기여하는 탄력성정도가 1보다 작음을 보여준다. 지식생산함수의 관하여 추정된 계수의 크기가 시사하는 바는 우리나라의 장기적 경제성장률은 제품 및 서비스생산함수에 관련된 탄력성과 인구성장증가율에 따라서 결정되기 때문에 정부의 직접적인 R&D정책개입보다는 지식관리 및 보급 그리고 공유체계정비라는 간접적 R&D정잭개입을 통하여 지속적인 경제성장전략을 추진해야한다는 주장을 뒷받침한다고 볼 수 있다.

• Journal of the Korean Society for Library and Information Science
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• v.40 no.1
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• pp.397-416
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• 2006

This study is focusing on the establishment of knowledge management framework of library, supposed that library becomes an integrated knowledge system offering various types of knowledge. Knowledge management of library based on knowledge ecology justifies the logical and physical roles of library, as the sustainer of the knowledge ecosystem in which all the types of social factors consisting of knowledge ecosystem are Interacting to continuously circulate knowledge. The library as the center of knowledge ecosystem should make sure the systemized environment in which knowledge producer is supported to timely distribute knowledge to knowledge consumer through information professional accomplishing the role of knowledge facilitator.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2008.11a
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• pp.285-290
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• 2008

Ministry of Land, Transportation and Marine Affairs has implemented Construction CALS project for improving informatization level of construction industry and for making construction production system efficient. Construction CALS project has been implemented since 1998, however, there has been no attempt to measure how high the informatization level of Construction CALS is. This study measured the informatization level of Construction CALS by using the evaluation index proposed in the former studies. For measuring the level, this study made questions and selected samples, did survey, and analyzed the survey results. According to the results, Construction CALS is excellent for the fast rehabilitation of system errors, the web-base environment of system, the application of standard classification system, and the development of information strategic plan. This study will contribute to find out the informatization level of Construction CALS precisely.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.19 no.3
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• pp.201-206
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• 2019

The purpose of this study is to identify and manage the problem of components discontinuity in the future based on the implementation of information systems to solve the problem of discontinuance of militaries parts, so as to solve the problem of discontinuance of components in the operation of the weapon systems and reduce excessive expenditure due to aging of the weapon system. The purpose is to prevent the discontinuance of components in the future by up-dating the production phenomena of parts manufactures periodically. Defense industries and R&D perood can expand users convenience by supporting selection of more efficient parts in weapon systems development and information of vast components information systems.

• Proceedings of the Korea Water Resources Association Conference
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• 2022.05a
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• pp.224-224
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• 2022

물부족, 수질오염, 조류발생 등 효율적 물관리를 위해서는 물정보 통합이 필요하지만 부처별/목적별로 개별 생산·관리되어 물관리 현안에 효과적으로 대응하기 어려운 실정이다. 물관리 현안 대응 의사결정을 위해서는 현재 상황에 대한 정확한 인식과 장래(1,3개월) 수자원 상황을 고려한 예측·분석체계 구축 필요하며, 이를 위해서는 수원별 가용수량, 지역별 물사용량 및 회귀수량 등 지자체, 유역, 하천을 연계한 실제 물이용 정보 기반의 물배분 현황 분석체계 구축이 필요하다. 본 연구에서는 물수급 관련 수요·공급 시설의 위치를 연결하는 물수급 분석 알고리즘 개발을 통해 지형공간정보의 위상(topology) 관계를 설정하여 물수급 분석의 계산순서를 선정하고, 시계열 DB를 입력하여 전국 약 40만개 이상의 일단위 물수급 분석 정보생산체계를 구축하였다. 본 연구에서 개발된 물수급 분석 모형은 향후 물관련 이슈 지역의 용수공급능력 평가 및 디지털트윈 등 다양한 수자원 정책평가에 활용될 것으로 기대된다.

• Journal of Korea Water Resources Association
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• v.56 no.8
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• pp.521-528
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• 2023

An approach for producing a rip current risk index using the rip current likelihood distribution obtained through the FUNWAVE simulations was applied to a rip current forecast system. The approach originally developed for an observation-based real-time rip current warning system was utilized with wave forecast data instead of observations for the rip current forecast system. The availability of the present approach was checked by comparing the observation-based rip current risk index and the wave forecast-based rip current risk index of the Haeundae Beach in 2021.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.1163-1166
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• 2006

상수도 체계는 크게 생산적인 측면, 유통적인 측면, 하수적인 측면으로 나눌 수 있다. 이중 생산적인 측면과 하수적인 측면은 자동화를 위한 많은 연구가 진행되어 현재 대부분 자동화 되어 있다. 하지만 유통적인 측면은 여러 가지 이유들로 아직까지 그 자동화 정도가 매우 미미한 수준이다. 본 논문에서는 상수도 체계 중 유통적인 측면의 자동화를 위해 가장 핵심이 되는 요소인 유량계의 검침을 유량계 자동검침 중계기를 이용하여 자동화 시킨 다음 유 무선 통신을 통하여 원격지(상수도사업소)에서 일괄 관리할 수 있는 "유량계 자동검침중계기를 이용한 상수도 관리 시스템"를 소개한다.