• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.380-387
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• 2009

In the past, many state Departments of Transportation (DOTs) in the U.S. managed their highway assets on a "worst first" basis and planned their highway projects in a tactical rather than strategic fashion. Due to increasingly tight highway budgets and recognition of long term benefits of asset management systems, the Federal Highway Administration (FHWA) has strongly pushed and encouraged state DOTs to implement asset management for managing their highway assets and highway projects. Currently, many DOTs have actively implemented and are in the process of applying this asset management concept for their highway infrastructure. However, different DOTs are developing different asset management systems because of their different organizational structures, data management structures, relationship with the legislature, and investment priorities. This study first identifies asset management indicators which are essential to successfully implementing asset management systems for State highway assets. The research team conducted a survey of asset management experts and reviewed the practices and policies of leading DOTs in asset management. Based on these indicators, this study develops an Asset Management Assessment Model (AM²) for different asset management systems. This model can be used by different DOTs to evaluate their current asset management systems and identify their strong areas and also their weak areas to improve in order to fully benefit from the advanced concept of asset management.

• 융합보안논문지
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• 제20권2호
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• pp.53-58
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• 2020

지식정보사회에서 기업의 비즈니스 연속성을 담보하기 위한 가용성의 중요성이 대두되면서, 가용성 보장전략으로 지속적인 서비스 인프라를 구축하는 고가용성(HA, High Availability) 구현 방안을 제시하고 있다. 하지만, 정보자산에 대한 중요도 평가의 신뢰도가 확보되지 않는다면 실제 자산의 가치와 연계되어 보안성을 유지하기 어렵기 때문에 자산가치 매트릭스를 통해 평가된 자산 중요도를 바탕으로 가용성 기준인 서비스 유지 평가항목과 매핑하여 관리할 수 있는 가용성 평가 방안이 필요하다. 이에 본 연구에서는 정보 자산에 대한 가용성 평가 방안을 제시한다.

• 한국건설관리학회논문집
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• 제14권3호
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• pp.22-32
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• 2013

일반적인 사회기반시설물 자산관리 절차는 기존 자산의 명확한 정보획득, 서비스수준의 설정, 요구수준의 분석, 재정상태와 가용예산의 분석, 자산관리 계획의 준비, 수정된 자산의 정보 획득 순으로 구성될 수 있다. 본 연구에서는 실제적인 위험도분석 기반의 개선된 교량 자산관리를 위하여 필요한 상태평가 및 성능측정, 성능척도의 설정, 파손형태 및 위험도 분석 등에 대한 방법론을 제시하였다. 보다 효율적인 교량 관리를 위하여 위험도 고려가 필요한 교량 기본현황정보 및 성능척도 항목을 설정하였고, 정량적 정성적 위험도를 고려한 성능평가방법을 제안하였다. 위험정도와 발생가능성을 고려한 위험도 매트릭스를 이용한 성능평가방법은 교량의 서비스수준을 보다 합리적으로 추정할 수 있다. 제안된 위험도분석 절차와 방법이 접목된 교량 서비스수준 평가방법을 이용하면 보다 합리적인 자산관리 의사결정이 가능하며, 향후 최적의 유지관리 의사결정을 위한 자산관리 체계구축 및 시스템 개발에 기여할 수 있을 것으로 판단된다.

• 한국컴퓨터정보학회논문지
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• 제23권11호
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• pp.75-84
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• 2018

Social engineering attack means to get information of Social engineering attack means to get information of opponent without technical attack or to induce opponent to provide information directly. In particular, social engineering does not approach opponents through technical attacks, so it is difficult to prevent all attacks with high-tech security equipment. Each company plans employee education and social training as a countermeasure to prevent social engineering. However, it is difficult for a security officer to obtain a practical education(training) effect, and it is also difficult to measure it visually. Therefore, to measure the social engineering threat, we use the results of social engineering training result to calculate the risk by system asset and propose a attack graph based probability. The security officer uses the results of social engineering training to analyze the security threats by asset and suggests a framework for quick security response. Through the framework presented in this paper, we measure the qualitative social engineering threats, collect system asset information, and calculate the asset risk to generate probability based attack graphs. As a result, the security officer can graphically monitor the degree of vulnerability of the asset's authority system, asset information and preferences along with social engineering training results. It aims to make it practical for companies to utilize as a key indicator for establishing a systematic security strategy in the enterprise.

• 한국건설관리학회논문집
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• 제22권4호
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• pp.41-49
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• 2021

국내의 유지관리 전략이 안정성 중심에서 성능중심으로 변화하고 있고, 그 기준에 맞추어 관련 제도와 법이 정비되고 있다. 성능평가에 기반한 자산관리를 도입하기 위해서는 구조물의 특성에 맞추어 성능을 평가할 수 있는 성능척도, 서비스수준 설정 등 관련 평가방법이 구체화하여야 하나 국내에서는 이러한 것들이 아직 구체화하지 못하고 있다. 본 연구에서는 기존의 유지관리 절차와 연계해서 성능평가, 생애주기 비용분석, 성능척도, 서비스수준 등 자산관리를 하기 위한 전산화 모델을 제시한다. 자산관리 모델을 수립하기 위해 유지관리 및 안전진단 등에 필요한 매뉴얼, 업무절차, 전문가의 인터뷰 등을 실시하고 자료를 분석하였다. 본 시스템은 3개 모듈로 구성하여 기존의 유지관리, 안전관리, 자산관리를 별개로 운영할 수 있도록 하였다. 본 시스템은 향후 자산관리를 도입하기 위한 공공기관의 참고자료로 활용될 수 있도록 구성하였다.

• 동력기계공학회지
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• 제14권6호
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• pp.61-66
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• 2010

Engineering asset management (EAM) requires the accurate assessment of current and the prediction of future asset health condition. Suitable mathematical models that are capable of predicting time-to-failure and the probability of failure in future time are essential. In general reliability models, lifetime of component and system is estimated using failure time data. This paper deals with the reliability assessment of elevators using life of main components. Especially this work is concerned with the stochastic nature of life of elevator components. First, we investigate the Weibull statistical analysis of lifetime data for the components. The final goal is to establish the mathematical model for reliability assessment. This work provides more perspectives to future research in the fields of reliability and maintainability.

• 전기학회논문지
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• 제63권2호
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• pp.297-305
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• 2014

Nowadays new water supply projects have been on the decline as the water-power constructions have saturated, which means that the existing power equipment have slowly aged and they require more efforts to maintain the system performance. An effective asset management method of power equipment has become a great necessity from both economical and technical aspects. To be balanced, the asset management should look into all three parts: management, engineering, and information. The purpose of this paper is to study a Risk-Based Maintenance (RBM) matrix method through the deterioration evaluation algorithm for an efficient reliability assessment of oil-immersed power transformers by considering both asset management and technical evaluation. Make use of this result, the equipment will be decided to be replace or repair otherwise on service.

• 상하수도학회지
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• 제29권1호
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• pp.123-131
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• 2015

A CCTV inspection method has been widely used to assess sewer condition and performance, but Korea lacks a proper decision support system for prioritizing sewer repair and rehabilitation (R&R). The objective of this paper is to introduce the results that we have developed in the Sewer Condition Assessment and Rehabilitation Decision-making (SCARD) Program using MS-EXCEL. The SCARD-Program is based on a standardized defect score for sewer structural and hydraulic assessment. Priorities are ranked based on risk scores, which are calculated by multiplying the sewer severity scores by the environmental impacts. This program is composed of three parts, which are decision-making for sewer condition and performance assessment, decision-making for sewer R&R priority assessment, and decision-making for optimal budget allocation. The SCARD-Program is useful for decision-makers, as it enables them to assess the sewer condition and to prioritize sewer R&R within the limited annual budget. In the future, this program logic will applied to the GIS-based sewer asset management system in local governments.

• 국제학술발표논문집
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• The 3th International Conference on Construction Engineering and Project Management
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• pp.1166-1169
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• 2009

Bridges are exposed to very severe environment and experience, as service life increased, elevated traffic load and traffic flow, in addition to natural disasters. In comparing to other road structures, bridges may cause more significant damage, such as human-involved accidents, to the society in the event of collapse. A certain level of service shall be necessarily secured to assure the minimum safety of users. The cost for manage and preserve bridges will increase gradually and more restrictions will be loaded to efficiently distribute the limited resources, such as monetary budget and human resource etc. In order to enhance performance and serviceability of bridges with the limited resource, asset management technique has been applied into the bridge management system, which capitalizes the road infrastructures including bridges and assess them in accordance with the government finance report. In the application of asset management, there must be a tool for assess the performance of bridges and this study introduces the basic information on the definition and role of performance measures for asset management for bridges. This research suggests future development direction of performance measure for asset management for bridges in Korea.

• 디지털산업정보학회논문지
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• 제5권1호
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• pp.141-153
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• 2009

There have been a lot of researches about KM(knowledge management) in domestic and foreign countries since 1990. Especially, there have been a lot of researches about enabler of KM, knowledge asset etc. but these are insufficient researches about performance measure of knowledge management considering maturity of KM. In addition, performance measure and maturity considering enabler to manage successful knowledge as well as knowledge asset which can be the following result are not the sufficient situation. Therefore, this study makes developmental levels of the inside and outside of the corporate by observing previous studies about the maturity of knowledge management and classifies enabler of knowledge management and measure item about knowledge asset by level, considering the features of each developmental level. And it is designed to propose maturity measure methods considering maturity level of actual knowledge management item by drawing indicator to measure classified items.