• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.301-304
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• 2006

The insistence of rights and interests in contract is being generalized by opening in construction market which is following F.T.A, internationally. Conditions of contract in construction have different specialities compared with other industries. Different conditions of contract should be established because of a specific character that is different from each construction, such as work, environment, circumference conditions. Although the order of Turn-key is being expanded by increasing construction scale and demanding hybrid function, the suitable regulations of contract are not settled. As a result, various factors of claim is occurring in Change Order-Claim, because they just obey a part of guide-line. This study suggests useful solutions in detail concerned with the main factor of Change Order-Claim by each D/B phases through practical sorting and analysis of the causes of Change Order-Claim.

• Proceedings of the Korean Institute of Building Construction Conference
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• 2023.05a
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• pp.365-366
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• 2023

The purpose of this study is to prevent dispute due to change orders in construction projects and to handle change orders smoothly. For this purpose, this study analyzed arbitration cases caused by change order handled by the Korea Commercial Arbitration Board. Based on this, dispute factors were analyzed and change order management factors and management plans were presented. Change order management factors were derived from responsibility, contract, design, process, construction cost, and schedule management, and a detailed management plan according to the relevant factor was presented.

• Proceedings of the Korean Information Science Society Conference
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• 2000.10a
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• pp.104-106
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• 2000

이 논문은 클라이언트에서 다수의 서버에 대한 공간 데이터의 변경 문제를 대상으로 한다. 분산 환경에서의 데이터 변경은 다음과 같은 요구조건을 가진다. 첫째, 분산 환경에서는 서로 다른 구조의 클라이언트 및 서버에 대해 확장성을 고려해야 한다. 둘째, 공간 데이터 간에는 공간 관련성이 존재하기 때문에, 서로 다른 서버에 분산 저장된 공간 데이터간의 공간 관련성을 유지해야 한다. 셋째, 한 클라이언트에서의 변경은 여러 서버 및 다른 클라이언트와의 협동 작업을 통해 수행되어야 한다. 이 논문에서는 클라이언트에서의 공간 데이터 변경을 처리하기 위해 서비스 제공자를 설계, 구현한다. 서비스 제공자는 미들웨어 컴포넌트로써 동일한 인터페이스를 제공하기 때문에, 클라이언트 및 서버의 확장이 용이한 장점을 갖는다. 이 논문에서 제공하는 서비스 제공자는 2PC 기반의 변경 프로토콜에 따라 분산된 서버간에 존재하는 공간 관련성을 유지하면서 공간 데이터의 변경을 수행한다. 즉, 서비스 제공자는 클라이언트에서 변경을 요청한 객체에 대해 공간 관련성 유무를 검사하고, 공간 관련성을 가진 객체를 포함한 서버에 변경 내용을 전파한 후, 협동 작업을 통해 변경을 확정하거나 취소하게 된다.

• Transactions of the Korean Society of Mechanical Engineers A
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• v.34 no.7
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• pp.873-879
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• 2010

It is common to predict structural dynamic design parameters due to the change of design parameter, but to predict the amount of changed design parameter where the mass and stiffness are being modified are rarely found in previous literature. In this study, the changed design parameter in a proportional damping system is predicted by using sensitivity coefficients and an iterative method. The sensitivity coefficients are determined from the changes in eigenvectors; these changes are due to modification. This method is applied to a three-story shear structure. To validate the prediction of the changed design parameter, the results are compared to the reanalysis results; both results are in good agreement.

• Journal of the Korea Institute of Building Construction
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• v.9 no.5
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• pp.103-110
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• 2009

A construction project consists of a variety of contracts for the completion of work. The large number of contracts involved in a single project increases the likelihood that disputes will arise between the parties involved regarding the terms of service. Actually, there are many disputes that are caused by a change 0 order. While such disputes should be settled by interpreting the terms stipulated in the agreement entered between the two parties, the process of dispute settlement is often restricted to arbitration and lawsuit, and as a result the parties tend to avoid it due to its inefficiency. For this reason, in Korea it is hard to find cases of interpreting terms of service, while in the U.S. it is easy to find diverse cases of interpreting terms of service, since there is a process of dispute settlement by each stage by the party who has placed an order. Therefore, this study presents analysis of case studies of contract changes, looking specifically at changes in the scope of the work, changes in quantity, changes in the period of implementation, changes in the method of implementation or attitude, changes in items provided by the government or the delivery place, and the acceptance of such change procedure by a contractor, and the adjustment of a reduction.

• Proceedings of the Korean Information Science Society Conference
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• 1998.10b
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• pp.135-137
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• 1998

지리정보시스템에서 사용자의 서로 다른 관점에 따른 지리 객체의 다양한 공간 표현을 지원하는 가상 클래스인 공간 뷰를 빠른 질의 수행을 위하여 실체화한다. 그리고 사용자 관점의 변경에 의해 공간 뷰가 재정의된 경우에는 일관성 유지를 위해 재계산을 수행하거나 기존의 실체화 된 뷰 객체를 이용하여 빠르게 변경하는 점진적 변경을 수행한다. 이러한 점진적 변경 방법은 적용 방법에 따라 기존의 실체화된 뷰 객체를 변경하는 방법과 새로운 뷰 객체를 삽입하는 방법으로 나누어지며, 추가 정보 사용 여부에 따라 뷰 객체를 사용하는 방법과 추가 정보를 사용하는 방법으로 나누어진다. 이 논문에서는 재정의된 공간 뷰의 변경 유형에 따라 점진적 변경 방법을 분류하고 각 방법에 적용할 수 있는 알고리즘을 제시한다. 그리고 상용 GIS 시스템인 고딕(Gothic)에 점진적 변경 방법을 이용한 공간 뷰 재작성기를 설계 및 구현한다. 마지막으로 이 논문에서 제시한 점진적 변경 방법의 성능 평가를 위하여 재계산 방법과 비교 평가한다.

• Proceedings of the Korea Society for Simulation Conference
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• 1999.10a
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• pp.41-45
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• 1999

본 논문에서는 소프트웨어 시스템의 설계 및 구현 과정에서 있을 수 있는 설계 변경 및 이에 따른 다른 변경 요인들을 정확하게 파악하고, 구현상의 변경으로 인한 전체 시스템이 영향 등을 체계적으로 정립하는 소프트웨어 설계 방법론을 특정 공정의 사용자 인터페이스 시스템을 통해 제시하였다. 대상 시스템, 즉 인터페이스 시스템을 시스템 이론(System theory)에서 정의하는 구조적 입출력 시스템 레벨(Structural I/O System level)의 요소들로 표현하고 다시 구조적 입출력 시스템 레벨을 입출력 시스템 레벨(I/O System level)로 변환하였다. 이를 다시 DEVS 모델로 재구성하여 DEVS(Discrete EVent system Specification) 시뮬레이션 환경에서 제공하는 시뮬레이터를 통하여 대상 시스템의 중요한 동적 특성을 소프트웨어 초기설계 시 또는 설계 변경 후 미리 파악할 수 있도록 하였다.

• Korean Journal of Construction Engineering and Management
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• v.1 no.1 s.1
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• pp.72-79
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• 2000

Design quality in constructed project is a primary consideration to achieve overall project objectives. It is not easy to evaluate the design quality because various factors are involved in the design process. This paper presents a new approach to improve the evaluation process of design quality In the construction project The evaluation model is developed to satisfy the requirement for implementing the ISO 9000 Quality Assurance Standards in the design process. It is assumed that design changes are resulted from the poor management of design quality. The model relates design changes to design quality management items. It assigns weight ratio to each design quality item to evaluate quantitatively Design Quality Index (DQI) is calculated to assess design quality based on the Objectives Matrix. A case study is performed to illustrate the practical implementation of the design quality evaluation.

• Proceedings of the Korean Institute Of Construction Engineering and Management
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• 2006.11a
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• pp.435-439
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• 2006

The purposes of study is to propose a new method contract price adjustment in construction projects. The research method of this study includes a case analysis and questionnaire survey. The results of this study are as follows: 1) For improvement method of contract amount adjustment, enactment for legislation pertaining to computation methods such as military's organization through total unit cost, and price flexibility computation at the point of design modification were presented. 2) Arithmetic formulas for cases in which volume is deleted or modified below the price flexibility exemption amount or in which there is no change to quantity, at the occurrence of design modification resulting from price flexibility, were proposed.

• The Journal of the Korea Contents Association
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• v.11 no.7
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• pp.497-507
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• 2011

This paper develops the steel-house design interface that helps make building design effectively done by constructing building materials as components and assembling them as patterns. It also aims to develop the Flexible Building Design System that supports a technology which makes change of constructing easy and reduces the cost effectively through a simulation of building design like design, analysis, change information, etc., by grafting the virtual building technology into the process of building. It especially is possible for a designer and user to change a building easily by using patterns and according to the change, pattern information of materials needed and the plans of the building are made automatically. Kin-search that can be happened through personal proficiency or knowledge visualization is also the reason why the technology should be embodied.