• Proceedings of the Korea Society of Design Studies Conference
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• 1998.10a
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• pp.48-49
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• 1998

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.426-429
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• 2003

In the construction process, there are many change orders differing to the initial contracts came from the social needs and environmental changes. Most of them will impact to the construction process so that its effects occur project delays. Time extension and liquidated damage in the construction process come from schedule delay whether it is excusable or not non-excusable by the owner. However, those become the delay claims if the owner and the contractor are not agreed on this situation. One of the most important thing on the delay claims is the calculation of delay. The purpose of this study is to present the method of the time delay calculation by comparison of As-Planned schedule, As-Built schedule including all delay and As-Built schedule absent owner delay.

• The Journal of the Convergence on Culture Technology
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• v.8 no.1
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• pp.523-529
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• 2022

Art sponsorship contributed to the development of culture and art by supporting art activities to be financially stable. Various problems in the non-fungible tokens (NFTs) market, such as speculative transactions, are also expected to be improved through sound art sponsorship. This study proposes methods of implementing art sponsorship using NFTs and smart contracts. First, we propose a method of posting the acknowledgement of art sponsorship using NFT metadata. Second, we propose a method to remit sponsorship funds according to the project schedule using time-locked wallets. Third, we propose a method to remit sponsorship funds when major events of the project occur or requirements are met using Event-Driven Execution. The proposed methods can be used to share the fact about art sponsorship and safely fund it. However, many decisions about art projects must be made based on information generated outside the blockchain, which can lead to Oracle problems, so further research is needed.

• Korean Journal of Construction Engineering and Management
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• v.12 no.2
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• pp.72-80
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• 2011

Recently, significance of efficiency in construction projects have been increased. So effective new delivery systems are required to improve project quality and value. Those systems could also reduce period, cost, risk and waste of the construction. Also, as current government aims 'Low carbon and Green growth', it is important to manage integrated supervision from the pre-design stage to the operation stage. In USA, AIA suggested IPD which encourages mutual cooperation among stakehklder to improve the productivity. Therefore, this study analyzes the characteristics of the IPD and deduct Present condition and Perception of Domestic Construction Environment to Introduce IPD.

• KIPS Transactions on Software and Data Engineering
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• v.12 no.11
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• pp.471-480
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• 2023

The Korean construction order volume in South Korea grew significantly from 91.3 trillion won in public orders in 2013 to a total of 212 trillion won in 2021, particularly in the private sector. As the size of the domestic and overseas markets grew, the scale and complexity of EPC (Engineering, Procurement, Construction) projects increased, and risk management of project management and ITB (Invitation to Bid) documents became a critical issue. The time granted to actual construction companies in the bidding process following the EPC project award is not only limited, but also extremely challenging to review all the risk terms in the ITB document due to manpower and cost issues. Previous research attempted to categorize the risk terms in EPC contract documents and detect them based on AI, but there were limitations to practical use due to problems related to data, such as the limit of labeled data utilization and class imbalance. Therefore, this study aims to develop an AI model that can categorize the contract terms based on the FIDIC Yellow 2017(Federation Internationale Des Ingenieurs-Conseils Contract terms) standard in detail, rather than defining and classifying risk terms like previous research. A multi-text classification function is necessary because the contract terms that need to be reviewed in detail may vary depending on the scale and type of the project. To enhance the performance of the multi-text classification model, we developed the ELECTRA PLM (Pre-trained Language Model) capable of efficiently learning the context of text data from the pre-training stage, and conducted a four-step experiment to validate the performance of the model. As a result, the ensemble version of the self-developed ITB-ELECTRA model and Legal-BERT achieved the best performance with a weighted average F1-Score of 76% in the classification of 57 contract terms.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• autumn
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• pp.300-305
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• 2002

The construction project is a complex undertaking involving multiple participants. Conflicts are inherently natural in the construction projects and subsequently, a success of projects mainly depends on how well to cope with the conflicts. In the past, courts usually took the position that the professional's exposure in damages for negligent performance of any of his/her duties would not extend to strangers to the contractual arrangement. However, courts today generally reject that rationale which was earlier in vogue and protect architects, engineers, and contractors from being liable to third parties. It means that the lack of privity of contract could rarely protect a profession in a suit alleging the negligence or professional malpractice in preparing plans or specifications. The main goal of this paper is to enhance the understanding of the legal aspect of privity and to provide the trend of no-privity disputes through the analysis of lawsuit cases during the last 40 years. On the base of the analysis, importance of the third relationship and the liability in construction disputes is presented.

• The Magazine for Energy Service Companies
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• s.26
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• pp.62-66
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• 2004

전미ESCO협회는 현재 미국 내에서 ESCO에 의해 사용되고 있는 M&V방식에 대해 질의하였다. 오늘날 측정평가(M&V)에 있어서 가장 기본적인 방법은 에너지 결정 변수 중의 하나가 측정되는 또는 어쩌면 하나도 측정되지 않는 ''A형 옵션''일 것이다. 이러한 프로젝트에서 절약 보증을 결정하는 데는 사전 설치분석법이 사용되고 있다. 그러나 요구 절감 가치에 대한 분쟁이 발생하는 상황에서 ''A형 옵션''은 상황을 ''조용히'' 해결하는 데 불충분한 정보를 제공할 수 있다. 계약에 충실히 따르는 인기있는 접근법은 설비별 계산서 분석 소프트웨어를 사용하여 건물 전체의 에너지를 분석하는 ''C형 옵션''이다. M&V를 단순화하는 이유는 조명프로젝트의 절약에 대한 이해가 클수록, 신규 설비 위주 프로젝트를 선호하는 고객과 에너지절감 위주 프로젝트를 선호하는 고객간의 대립으로 인한 M&V를 실행하는 비용과 위험성을 감안한 듯 하다.

• 한국IT서비스학회:학술대회논문집
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• 2005.11a
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• pp.382-390
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• 2005

소프트웨어 개발 프로젝트 사업의 성패는 사업의 첫 관문인 소프트웨어 견적의 결과에 좌우되는 경우가 많다. 특히, 확정가격 계약으로 수행되는 국내의 소프트웨어 사업 관행 하에서는 견적의 잘못이 회사의 존폐로 귀결되는 경우도 있다. 견적의 핵은 정확한 원가의 파악인데, 이를 위해서는 고객이 요구한 업무량과 개발자의 생산성을 정확히 아는 데서 출발해야 한다. 문제는 고객의 요구를 사업 초기에 정확히 파악하는 것이 쉽지 않을 뿐 아니라, 개발자 자신의 생산성을 잘 모른다는 것이다. 더욱이 정보의 부족으로 프로젝트의 특성 파악을 제대로 할 수 없어서, 해당 프로젝트에 적합한 생산성 보정계수의 적용이 어렵다는 점이다. 본 사례는 삼성SDS가 금년도에 종료된 수십 여 개의 프로젝트로부터 수집한 생산성 영향인자들이 생산성에 어떠한 영향을 어느 정도나 미치는 지를 분석한 것이다. 본 분석을 통하여 생산성에 영향을 미치는 주요 인자들을 식별할 수 있었고, 이들이 미치는 영향 정도를 바탕으로 견적에서 활용할 수 있는 다양한 파라메트릭 모델을 만들 수 있었다. 본 논문은 생산성 영향인자의 식별과 이들을 이용한 견적용 파라메트릭 모델의 개발 방법을 다루었다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.25 no.2
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• pp.286-293
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• 2021

Smart contract based on the blockchain technology can be applied to the real estate registry including transactions. The Ethereum coin using multi layered protocol is widely accepted as the token for the smart contract. Block chain smart contract using SOLIDITY or PYTHON can mediate transactions auch as sale or lease, creating various scenarios in the property market. Those smart contract can construct the basis for the blockchain real estate registry, which is expected to overcome conventional transaction costs concerning the national law system, the asymmetric information and the currency exchange. The advantages of blockchain technology, namely security, decentralization, global transparency and openness can be applied to the smart contract system on the property registry. Several countries have advanced such blockchain real estate registry project recently, but no actual implementation has been reported for years, owing to institutional and technological impasses.

• Venture DIGEST
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• s.39
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• pp.13-13
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• 2003

일반적으로 하나의 프로젝트가 종결되는 경우 관련파일에는 계약서, 최초 총예정원가계획서, 수정계획서, 회의록, 통신문, 검토보고서, 최종보고서 등 일련의 문서들이 포함되어 있다. 이때 비로소 진행률매출을 인식하기 위한 내부통제 절차가 적절하다고 판단될 수 있으며 회사가 인식한 진행률매출액의 자의성을 배제할 수 있는 것이다