• 인터넷정보학회논문지
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• 제8권4호
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• pp.105-117
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• 2007

프로젝트 관리자는 입찰 또는 개발을 성공하기 위해 비용과 일정을 프로젝트 초기 단계에서 보다 정확히 추정해야만 한다. 평균적으로 대부분의 프로젝트들이 수행하고 있는 명목상의 개발기간은 경험법칙, 선형함수 추정경험 또는 개략적 일정 추정표로부터 유도할 수 있다. 명목상 개발기간에는 다양한 경험법칙이 존재하며, 선형함수 모델은 충분한 정보를 제공하지 못하여 특정 규모의 프로젝트에 적합한 개발노력과 일정을 결정하기 어렵다. 본 논문은 개략적 일정 추정표로부터 개발노력과 일정을 유도하는 통계적 회귀분석 모델을 제시하였다. 먼저, 개략적 일정 추정표에서 제시하고 있는 최대 단축기간, 효율적 개발기간과 명목상 개발기간을 재정의 하였다. 다음으로 개발노력과 기간과의 관계를 고찰하고, 개략적 일정추정표에 제시되지 않은 특정 규모의 소프트웨어에 대한 개발노력 추정 모델과 개발노력에 따른 일정을 보다 정확히 추정할 수 있는 모델을 제시하였다. 제시된 회귀분석 모델은 기존의 방법들과 비교하여 상대오차를 최대 2%까지 줄이는 효과를 얻었다. 또한, 특정 규모의 소프트웨어에 대해서도 개발노력과 일정을 추정할 수 있었다.

• 문화경제연구
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• 제20권1호
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• pp.51-80
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• 2017

본 연구는 2016년 문화영향평가 시행과정에서 나타난 다양한 이슈와 문제점을 분석하고 평가 단계별 개선점을 도출하는 것이다. 분석결과 문화영향평가제도를 시행함에 있어서 평가지표가 일반 사람들이 이해하기 어려운 점, 사전평가는 미비한 사업계획서와 판단할 수 있는 근거자료가 부족하다는 점, 다양한 방법론 보다는 설문조사를 중심으로 평가를 진행한 사례가 많다는 점, 평가척도와 가중치 적용의 문제점, 평가결과의 활용보다는 평가 그 자체에 다소 치중되어 있다는 점 등이 지적되었다. 이에 대한 개선방안으로는, 먼저 평가기획단계에서는 사업시행 전, 사업진행, 사업완료 시점에 따라 평가결과를 비교하여 결과를 도출하는 방식을 도입하고, 또한 평가대상 정책 사업의 담당자와 평가기관이 공동으로 평가지표를 개발하며, 시스템다이내믹스와 같은 인과적 추론을 위한 지표개발이 필요할 것으로 보았다. 평가추진단계에서는 주민참여 다각화, 풍부한 사례조사, 계량적 방법론의 적용 등 복합적 방법론을 도입하고, 기술과 지식이 풍부한 전문가 평가단을 좀 더 운영하고 활용할 필요가 있다는 것을 제안하였다. 평가활용단계에서는 인과관계를 파악할 수 있는 방법론을 활용함으로써 활용성을 제고시키면서, 평가결과를 기반으로 하여 철저하게 컨설팅을 제공할 필요가 있다는 점이다.

• 한국정보처리학회논문지
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• 제5권11호
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• pp.2862-2873
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• 1998

인터넷 및 인트라넷 기반의 클라이언트-서버 프로그램으로 사용 가능한 Java 애플릿 및 애플리케이션의 자동 생성을 위한 통합 개발 환경에서는 메인 윈도, 프로젝트 관리자, 오브젝트 인스펙터, 원시코드 편집기, 폼 디자이너 등과 같은 기능 컴포넌트간의 상호연동이 필수적이다. 본 논문에서는 인터넷 및 인트라넷 환경에서 모빌 코드 기반의 클라이언트-서버 프로그램 생성 기술인 각각의 기능 컴포넌트들에 대하여 살펴보고, 이들의 상호연동을 위한 자료구조인 'JCode'를 설계 및 구현하며, 이 JCode를 이용한 Two-Way Access 기법의 구조와 동작원리에 대하여 논한다. 이러한 상호연도 기법을 적용함으로써 사용자는 각 기능 컴포넌트들을 사용하여 보다 빠르고 쉽게 Java 프로그램을 작성할 수 있게 된다.

• The Journal of Asian Finance, Economics and Business
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• 제7권12호
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• pp.877-884
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• 2020

The main aim of the present study is to investigate the factors that are considered affecting the adoption of Activity-Based Costing (ABC) in the autonomous public universities in Vietnam. A quantitative research was carried out. The data was collected through an online questionnaire survey between June 2020 and September 2020 addressed to the target respondents comprising 168 managers and accountants from 23 autonomous public universities in Vietnam, which participated in the resolution project No. 77/NQ-CP of the Vietnamese government on the pilot renovation of operational mechanisms of public tertiary education institutions during the period of four years, from 2014 to 2017. The findings resulted from hypothesis testing by a binary regression analysis based on the SPSS 20.0 software show that training, competition, support of top manager, and university size are the four main factors that positively affect the adoption of Activity-Based Costing (ABC) in studied universities. On the other hand, no statistically significant impact was found on two other variables, namely the variety of services provided and the usefulness of cost information factors. From the research results, discussions and policy recommendations have been presented to promote the adoption of Activity-Based Costing (ABC) in Vietnamese autonomous public universities in the coming time.

• 한국IT서비스학회지
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• 제19권4호
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• pp.125-138
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• 2020

This paper proposes a more advanced livestock insurance product by comparing the status of livestock management in Korea with Netherlands case. The project focused on blockchain technology, IoT based management manual and planned livestock insurance related to Insurtech. The livestock insurance policy automatically stores information on each block through sensors attached to livestock, so that the livestock manager carries out follow-up manual for each livestock. Blockchain technology contains numerous advantages such as distributed ledger and irreversibility. However, the sharing of transparent information can be a burden to the policyholder. To compensate it, new business model needs to be proposed to provide incentives to the policyholder. We focused on the data of Gyeonggi Province, which suffered the most from African swine fever (ASF) in Korea. The corresponding Insurtech based livestock insurance can enable policyholders and insurers to build trust by sharing objective and transparent information, and maximize their respective profits by enabling mutual control.

• 디지털융복합연구
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• 제10권6호
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• pp.159-169
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• 2012

본 연구는 컨설팅서비스 참여주체인 CEO, 프로젝트매니저, 전문컨설턴트, 부서별 부서장들의 역할과 컨설팅성과간의 관계에 있어 사후관리(Post Management)의 조절효과를 분석하였다. 분석결과, 컨설팅서비스 각 주체와 컨설팅 성과와의 관계에 있어 목표달성을 위한 지속적인 점검 및 관리활동은 궁극적인 컨설팅성과에 유의미한 영향을 미쳐, 사후관리의 조절효과를 확인할 수 있었다. 본 연구에서는 비즈니스 참여주체별 지속적인 사후관리의 조절효과로 실증 분석함으로서 단기과업으로 인식되었던 컨설팅서비스를 지속가능경영의 실천을 위해 수반되어야 할 지식경영서비스의 중요한 일부분으로서의 역할을 확인하였다는데 그 의의가 있다.

• Journal of Advanced Marine Engineering and Technology
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• 제32권7호
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• pp.1061-1067
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• 2008

Direct Torque Control[DTC] and Vector Control are the two schemes developed for high performance induction motor drives. DTC based induction motors are being increasingly used in various industrial applications. DTC offers fast torque response and better speed control with lesser hardware and processing costs as compared to vector controlled drives. However, conventional DTC suffers from high torque ripple, current harmonics and low performance during torque transients. In this paper a new Direct Torque Control[DTC] method of induction motor is presented. In comparison with the conventional DTC method, the PWM technique is applied to proposed control method. In this method, decoupling mechanism is not required and the torque, the flux magnitude are under control using PI controllers and generating the voltage command for inverter control. Therefore torque and speed ripple could be reduced in comparison with the conventional switching table DTC.

• 시스템엔지니어링학술지
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• 제11권1호
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• pp.55-65
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• 2015

In steel making plant, sampling system for raw material such as iron ore, limestone is necessary for quality control purpose. For the sake of efficiency and productivity, automation of the sampling system is highly desirable. From technical standpoint, the development of the automated system requires multi-disciplinary domain knowledge such as mechanical engineering, industrial engineering, information technology and computer engineering. Up to present time, the development has been mainly carried out by a single domain expert with project manager. The automated system developed in this way caused problems in the final system. This paper suggests a systems engineering approach to the development of automation for raw material sampling plant via a tailored process called Plant Systems Engineering (PSE) Process based on ISO/IEC 15288. Through the PSE process, we could derive right requirements and architecture of the Systems Of Interest (SOI), and we were convinced that the PSE Process can be applied to many other Plant Systems.

• 한국안전학회지
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• 제30권5호
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• pp.29-36
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• 2015

Common utility tunnel is essential to the daily lives of people underground utilities (electricity, gas and supply facilities such as water, communication facilities, sewer facilities, etc.) to improve the appearance by co-acceptance and disaster prevention, important for the conservation of the city's population was concentrated road construction the city-based facilities. There is recognition of the importance of the various supply treatment facilities in common utility tunnel as infrastructure to accommodate joint according to the city expanded, the demand for infrastructure. In this paper, a cost-benefit analysis using a one-time occurrence, without simply relying on cost or current cost, project manager for the city-dimensional feasibility study conducted, the user level of the maintenance costs and user costs, including social costs items from various angles can be investigated and proposed a mechanism of economic feasibility common utility tunnel. Evaluation of the proposed technique is cost-benefit and cost caused by installing common utility tunnel the existing pipeline area - was investigated by the benefit analysis, extended and repeated common utility tunnel installation depends much affected by the excavation, so users of reducing the number of repeat excavation convenience can be seen that this occurs.

• 한국지반공학회:학술대회논문집
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• 한국지반공학회 2001년도 봄 학술발표회 논문집
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• pp.231-238
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• 2001

To investigate the underground structure of shallow water, Han-river near Yangsou-Ri, high resolution hydroacoustic measurements were carried out for the engineering design of railroad bridge. The acoustic source was a Boomer with an energy of 90 to 280J and in a frequency range up to about 16KHz. The reflected signals were received by using both traditional hydrophones(passive element) and a specially devised receiver unit(active element) mainly composed of piezofilms and preamplifier. They are connected to the "SUMMIT" data acquisition system(DMT-GeoTec company), where the sampling interval was set to 1/32㎳. The source position was continuously monitored by a precision DGPS system whose positioning accuracy was on the order of loom. For the quality control purposes, two different source-receiver geometries were taken. That is to say, the measurements were repeated along the profile everytime depending on the different source energy(175J, 280J), the receiving elements(passive, active) and two different source-receiver geometries. It was shown that the data resolution derived from a proper arrangement with the active hydrophone could be greatly enhanced and hence the corresponding profile section caused by the regular data processing system "FOCUS" accounted excellently for the underground formation below the shallow water.w the shallow water.