• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.298-300
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• 2005

감리는 정보시스템의 품질을 향상시키기 위한 일련의 활동들 중 하나로 독립된 제3자가 정보시스템 구축 및 운영에 관련된 각종 위험 및 통제 상태를 점검하고 평가하여 개선이 필요한 사항을 권고하는 것이다. 그러나, 대부분의 평가가 감리인의 전문적 경험 및 주관적 판단에 의존한 정성적 방법으로 수행되고 있어 중요한 위험을 간과할 문제점을 내포하고 있다. 이에 따라, 본 논문에서는 다양한 비정형 산출물을 DTD와 스키마를 포함한 XML메타 모델인 표준포맷을 생성 후 단계별 필 통합적 방법으로 의미분석을 실시하여 자동으로 위험요소를 식별하고 평가할 수 있는 위험평가 프레임워크, 위험평가 모델, 위험평가 기준을 제안한다. 이와 같은 시스템화된 감리품질 개선기법을 통하여 추출된 결과는 감리인에게 사전에 전달됨으로써 감리노력과 일정을 절약할 수 있어 효율적인 감리수행 및 효과적인 감리결과가 보장된다.

• Annual Conference of KIPS
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• 2000.04a
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• pp.967-970
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• 2000

소프트웨어가 대형화되고 복잡해질수록 품질의 중요성은 높아지게 된다. 많은 소프트웨어 개발 프로젝트들이 충분한 품질관리가 이루어지지 못한 채 잠재적인 위험 요소들을 지니고 제품화되고 있다. 소프트웨어의 오류를 최소화하기 위한 방안으로 개발된 소프트웨어에 대해 시험 사례를 개발하여 적용하는 것이 일반적이다. 그러나 소프트웨어 개발 과정에서 발생하는 오류는 초기 단계의 오류일수록 최종 소프트웨어 제품에 미치는 영향이 크므로 초기 단계에 문제점을 점검하는 것이 더욱 중요한 문제일뿐 아니라 생명주기 전 단계에 걸쳐 각 단계에 적합한 시험 항목을 개발하여 적용하는 것이 고품질의 소프트웨어를 개발하는 최선의 방법이 될 수 있을 것이다. 본 연구에서는 생명주기 전 단계에 걸친 테스트 항목을 개발하였다.

• The KIPS Transactions:PartD
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• v.12D no.7 s.103
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• pp.993-1000
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• 2005

Recently, software quality evaluation based on ISO/IEC 9126 and ISO/IEC 14598 has been widely accepted in various areas. However, these standards for software quality do not provide practical guidelines to apply the quality model and the evaluation process of software product=5. And the qualify management in most software projects has been conducted by managing defects without applying the standards for software qualify. Thus, we present a quantitative quality evaluation approach of artifacts in the Component Based Development (CBD). Particularly, our evaluation approach allows most of the standard evaluation process and adopts a quantitative quality model which uses the weights of quality characteristics obtained through carefully selected questionnaires for stakeholder and Analytic Hierarchical Process(AHP). Moreover, we have also examined the proposed evaluation approach with applying the checklists for the artifacts of the CBD to a small-scale software project. As a result, we believe that the proposed approach will be helpful for acquiring the high quality software.

• Journal of the Society of Disaster Information
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• v.17 no.1
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• pp.39-52
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• 2021

Purpose: Recently, due to increasing usage of high-tech equipment for facility inspection, the need of verifying high-tech equipment is being emphasized. Therefore, the purpose of this paper is to develop performance evaluation methodology of tunnel scanners that inspect tunnel facilities. Method: This paper describes literature reviews regarding the performance evaluation methodology of high-tech based equipment for facility inspection. Based on these investigations and expert advisory meetings, this paper suggests a performance evaluation methodology of tunnel scanner. Result: First evaluation indicator states minimum performance standards of tunnel scanners. Second evaluation indicator is related to tunnel scanner quality. Conclusion: The performance evaluation methodology can provide reliable equipment performance catalogues, helping users to make a proper selection of equipment. Also, developers of equipment can get authorized verification of performances, preventing poor maintenance of facilities.

• The Journal of the Korea Contents Association
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• v.16 no.5
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• pp.533-547
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• 2016

The goal of this study is to analyze the effect of the working environment of elderly care facility employees on the care service quality and the mediation effect of social support. The results of the research were as follows: First, it has been confirmed that a high level of average monthly salary and the salary satisfaction theref have a positive correlation with an improvement in care service quality in the working environment variables of elderly care facility employees. Second, it has been confirmed that the average monthly salary and the salary satisfaction level among the working environment variables of elderly care facility employees have a positive correlation on the parameter of social support. Third, a partial mediation effect of social support has been confirmed in the effect that average monthly salary and the salary satisfaction level variables have on the quality of care service in the working environment of elderly care facility employees. Thus, this study actively reflects the social situation of an aged society and uses "Self-checking Management Measures" capable of suggesting the management direction for the elderly care facility to measure its service quality and proposes a method to improve the working environment of the elderly care facility employees.

• Journal of the Korea institute for structural maintenance and inspection
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• v.28 no.4
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• pp.55-61
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• 2024

Recently, the number of aging concrete structures is steadily increasing. This is because many of these structures are reaching their expected lifespan. Such structures require accurate inspections and persistent maintenance. Otherwise, their original functions and performance may degrade, potentially leading to safety accidents. Therefore, research on objective inspection technologies using deep learning and computer vision is actively being conducted. High-resolution images can accurately observe not only micro cracks but also spalling and exposed rebar, and deep learning enables automated detection. High detection performance in deep learning is only guaranteed with diverse and numerous training datasets. However, surface damage to concrete is not commonly captured in images, resulting in a lack of training data. To overcome this limitation, this study proposed a method for generating concrete surface damage images, including cracks, spalling, and exposed rebar, using stable diffusion. This method synthesizes new damage images by paired text and image data. For this purpose, a training dataset of 678 images was secured, and fine-tuning was performed through low-rank adaptation. The quality of the generated images was compared according to three base models of stable diffusion. As a result, a method to synthesize the most diverse and high-quality concrete damage images was developed. This research is expected to address the issue of data scarcity and contribute to improving the accuracy of deep learning-based damage detection algorithms in the future.

• Journal of Software Engineering Society
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• v.29 no.2
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• pp.7-12
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• 2020

A project to establish an information system with a project cost of more than 500 million won at a local public firm is subject to the Information System Audit (hereinafter referred to as IS Audit), and the IS Auditor shall conduct audit according to the audit criteria. Recently, as blockchain technology has been applied to various fields such as manufacturing, healthcare, distribution, and public sectors beyond the financial industry, the development of systems that apply blockchain technology is increasing. The use of Hyperledger Fabric, a private blockchain, is on the rise to utilize blockchain technology in public firms and private firms. However, the newly emerging blockchain-based system is not sufficient to carry out auditing with existing audit check items, so it has no choice but to make and use audit items individually. Therefore, a need for verified audit items for systems that base on blockchain technology has emerged. In this study, we customized the Delphi process to derive audit items suitable for the system development project using the blockchain technology, and verified the completeness and accuracy of the audit items derived through a survey by the IS Auditor. This research will be of direct help to the IS Auditor, and it is expected that operators and organizers who provide services through the blockchain-based system will also contribute to improving the quality of the system.

• Proceedings of the Korean Society of Broadcast Engineers Conference
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• fall
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• pp.9-12
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• 2021

드론 Photogrammetry는 높은 기술적 활용가치가 있는 기술로서, 결과물로 생성하는 3D 디지털 공간정보 모델이 시설물의 비육안 안전점검 및 진단에 활용될 수 있을 뿐만 아니라 디지털 트윈 구축을 위한 가장 기초적이고 핵심적인 수치 데이터를 제공하기 때문이다. 본 연구에서는 드론 Photogrammetry의 적정 품질을 구현하기 위한 임무비행의 다양한 영향인자에 대해 고찰하였다. K-water연구원 누수탐사실습장을 대상으로 드론 사진 촬영 시 비행고도, 비행속도, 중첩도, 카메라 Pitch각의 영향에 대해 연구를 수행하였다. 본 연구에서 비행시간에 영향을 미치는 인자로서 비행고도, 중첩도, 비행속도의 순으로 중요도가 있음을 알 수 있었다. 드론 임무 비행 시 후처리 결과에 가장 큰 영향을 미치는 인자는 중첩도로 나타났다. 중첩도 60% 임무비행은 3D 모델의 geometry 왜곡이 큰 편으로 나타났다. 비행 고도는 GSD (Ground Sampling Distance)와 직접 연계되므로 중요하며, 낮은 고도일수록 높은 품질의 모델링이 가능하다. April Tag를 통한 지상기준점 자동 패턴 인식 기능은 후처리 과정에서 시간 절약이 가능하여 유용하였다. 비행속도에 의한 결과물의 품질은 큰 차이가 없었으나, 수직 구조물의 모서리 부분에 다소 차이가 있었다. 짐벌 Pitch각도에 의한 정사영상 품질의 차이는 크지 않았으나 수직구조물과 평면적 구조물에 따라 각기 다른 촬영각도를 적용하는 것이 바람직하다. 본 연구성과는 향후 보다 다양한 환경에서의 데이터 수집을 통해 최적 디지털 현실 모델링에 기여할 것으로 판단된다.

• KSCE Journal of Civil and Environmental Engineering Research
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• v.37 no.1
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• pp.133-141
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• 2017

Traffic volume increases according to highway expansion and industrial development which causes repetitive defect and durability degradation on pavement. The research of quality assurance system used abroad has introduced Korea. Korea Expressway Corporation (KEC) has developed a Quality Performance Index (QPI) that quantitatively assesses the level of quality of the final product, and practical applications. Assessment factor on concrete pavement consisted of pavement thickness, compressive strength, IRI and spacing factor. Assessment factor on concrete pavement is determined by empirical evaluation factor from abroad. In this study, analysis of evaluation factors of concrete pavement by using pavement life prediction simulation and measured data were evaluated with consideration of feasibility of the assessment factor. Pavement life, performance and durability are affected by pavement thickness, compressive strength, IRI and spacing factor in assessment factor on concrete pavement, QPI.

• Journal of the Korea Construction Safety Engineering Association
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• s.18
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• pp.11-15
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• 1995

'92.7. 신행주대교 사고 이후 '건설공사 부실방지대책'을 수립하여 관련 제도를 정비하고 건설현장에 대한 불시 점검으로 견실시공 분위기 정착에 노력하여 왔다. 그러나 그동안 정부의 부실방지와 안전확보 노력에도 불구하고, 아직까지 크고 작은 부실이 계속되고 있으며, 삼풍백화점 붕괴와 같은 대형사고에 대한 불안심리가 사라지지 않고 있다. 따라서 지금까지 추진한 제도개선사항이 일선현장에 정착되도록 최선을 다하는 한편, 이해집단간의 의견차이로 추진하지 못한 사항도 과감히 개선할 계획이며, 앞으로 우리 건설업계도 건설시장 개방에 따라 국ㆍ내외 시장에서 생존하기 위해서는 견실ㆍ안전시공과 기술개발 및 업종전문화를 목표로 하고 품질경영을 최우선으로 실시하여 건설공사에 대한 신뢰성을 더욱 확고히 다져 나가야 할 것이다.