• 한국항해항만학회지
• /
• 제41권3호
• /
• pp.137-148
• /
• 2017

항만의 서비스 수준은 항만의 운영 및 관리 주체인 터미널운영사(TOC), 항만공사 및 정부의 입장에서 항만간 경쟁력의 기준이 되며, 항만의 이용 주체인 선사 및 화주의 입장에서는 어느 항만을 선택할 지를 결정하는 중요 지표로도 활용된다. 이러한 지표의 중요성을 고려하여 컨테이너 부두 및 벌크부두를 대상으로 중요 서비스 지표인 선석 점유율, 선박 대기율, 선석 처리량, 접안 척수, 평균 대기 척수, 평균 대기 시간과 같은 6개 지표를 객관적으로 정의하고 관리할 수 있는 소프트웨어를 개발하였다. 컨테이너 부두는 1개 선석부터 6개 선석까지와 벌크 부두는 1개 선석부터 4개 선석까지를 선택적으로 활용할 수 있도록 6개의 서비스 지표를 산정하여 예측이 가능토록 하였다. 이를 활용하면 선석점유율 대비 선박 대기율, 선석 처리량, 접안 척수, 평균 대기 척수, 평균 대기 시간을 예측할 수 있다. 추가하여 선박의 도착 패턴에 따라 선박 대기율과 항만의 생산성 지표인 연간 처리량도 어떻게 변화되는지를 예측할 수 있도록 하였다. 결과적으로, TOC 입장에서는 서비스 지표인 선박 대기율과 생산성 지표인 연간 처리량의 관계에서 최적의 운영 수준을 전략적으로 선택(Trade-off)할 수 있으므로 경쟁 항만에 대비하여 더 많은 선사 및 화주를 유치할 수 있으므로 터미널 수입도 극대화할 수 있다.

• 한국전자거래학회지
• /
• 제7권3호
• /
• pp.219-240
• /
• 2002

The various software engineering techniques have been appeared in order to cope with the software crisis since 1980's. Currently, the research against the techniques likes the Design pattern, Component which improve the software's re-use are spread out. Also S/W Development Process are interested intensively which attempts the quality and a increasing productivity of software development with the basic policy. The design pattern is the solution against the problem which occurs repeat in a specific area. Many design pattern are developed and researched, but the method which accommodates the developed design pattern efficiently in the phase of analysis and design software development process is not good enough, so it is the actual applying technique is difficult. In this paper we suggest and the “UML components+” which is a efficient component development process from customizing EJB based the J2EE using the “UML Components” which is a component development methodology. Applying J2EE pattern efficiently with UML components+, there is a possibility of efficiency in the component development based pattern.

• 한국IT서비스학회지
• /
• 제12권3호
• /
• pp.311-321
• /
• 2013

In the community of software engineering, diverse modeling languages are used for representing all relevant information in the form of models. Also many different models such as business model, business process model, product models, interface models etc. are generated through software life cycles. In this situation, models need to be integrated for enterprise integration and enhancement of software productivity. Researchers propose rebuilding models by a specific modeling language, using a intemediate modeling language and using common reference for model integration. However, in the current approach it requires a lot of cost and time to integrate models. Also it is difficult to identify common objects from several models and to update objects in the repository of common model objects. This paper proposes software model integration using metadata model based on Linked data. We verify the effectiveness of the proposed approach through a case study.

• Nuclear Engineering and Technology
• /
• 제31권1호
• /
• pp.58-67
• /
• 1999

The purpose is to produce a model of nuclear reactor trip logic caused by the steam generator water level of Wolsong 2/3/4 unit through an activity chart and a statechart and to produce C language automatically using Statechart-based Formalism and Stalemate MAGNUM toolset suggested by David Harel Formalism. It was worth attempting auto-generation of C language though we manually made Software Requirement Specification(SRS) for safety-critical software using statechart-based formalism. Most of the phases of the software life-cycle except the software requirement specification of an analysis phase were generated automatically by Computer Aided Software Engineering (CASE) tools. It was verified that automatically produced C language has high productivity, portability, and quality through the simulation.

• 한국IT서비스학회지
• /
• 제5권1호
• /
• pp.177-190
• /
• 2006

Since their first inception a few decades ago, software components have received much attention mainly due to their alleged benefits of quality and productivity improvement. Despite this, it is yet to be agreed upon what and how components should be designed. This paper aims to bridge the gap by proposing a collaborative process where the voice of the customer is captured and documented by employing the event and entity models. These requirement elements (WHAT) are cross-tabulated in three relation matrices in accordance with the weights provided by the business users. The requirements are fed into the algorithm invented by the authors to optimize the component grouping (HOW). This collaborative process has been successfully validated at an enterprise wide software development project. The process was effective to help the users more actively involved in the design of the system and made the whole process faster and more adaptive to the changes.

• 한국산학기술학회:학술대회논문집
• /
• 한국산학기술학회 2001년도 추계산학기술 심포지엄 및 학술대회 발표논문집
• /
• pp.104-106
• /
• 2001

This paper presents the usage of software package APM WinMachine for design of train car elements. APM software uses fur maximization of design productivity and efficiency in designing and evaluation machine elements and systems and CAD modeling. In process of machine designing needs make strength calculations of machine parts with complecated design. Will the help of APM software strength calculations can be done quickly. On the Demichovo machine-building plant with the use of APM software were made quickly and effectively strength calculations of the cradle of the suspension of air-conditioner of car train and the mounting brackets of a tank of train toilet.

• 한국정보처리학회논문지
• /
• 제3권2호
• /
• pp.231-241
• /
• 1996

지금까지 많은 소프트웨어 신뢰도 성장 모델들의 제안되어 왔으나 현상을 완전히 고려한 소프트웨어 신뢰도 모델은 아직 개발되어 있지 못한 실정이다. 따라서 다양한 소프트웨어 신뢰도 모델이 계속 개발되어 모든 현상을 고려할 수 있는 모델의 개발이 필요하다고 볼 수 있다. 이와 같은 목적하에 본 논문에서는 발견되는 오류를 오류의 특성에 따라 3종류로 분류하였고, 또한 각 오류의 분류된 오류의 발견 시점 등을 고려 하여 소프트웨어의 신뢰도를 측정할 수 있는 신뢰도 모델을 제안하였다. 그리고모델의 파라메타의 추정 및 신뢰성 평가를 위해실측 데이타를 이용하여 고찰하였으며, 본 논문의 적합성을 검증하기 위해 기존의 모델과 비교 분석 하였다.

• 한국산업정보학회논문지
• /
• 제5권3호
• /
• pp.87-93
• /
• 2000

근래의 소프트웨어 관련업계에서는 소프트웨어 개발 및 관리에 있어 소프트웨어 아키텍처를 중심으로 생산성 및 품질의 극대화를 추구하고 있다. 또한 소프트웨어 컴포넌트 관련 기술 및 컴포넌트 기반 소프트웨어 개발 방법론에 대한 연구도 활발히 진행중이며, 많은 응용기술들이 나오고 있다. 소프트웨어 아키텍처는 소프트웨어를 컴포넌트로 구성하고 그 사이의 상호작용을 커넥터를 이용해 기술함으로서 전체적인 구조를 분석하고 유지하는데 필수적인 요소로 고려된다. 본 연구에서 제안하는 소프트웨어 모델링 기법은 Happy Work라는 모델링 도구를 사용하여 소프트웨어 구조를 기술하는 Happy Work Language를 생성한다. 그 과정에서 System Context Diagram, Component Diagram, Component Sequence Diagram과 같이 세 가지 다이어그램이 사용되며, User, System, Component, Connector와 같은 네 가지 Elements로 구성된다.

• 대한안전경영과학회지
• /
• 제17권4호
• /
• pp.181-192
• /
• 2015

The health care markets are rapidly expanded due to population aging, increasing incomes, strengthening assurance of health insurance and so on, and the competition in the markets is getting serious. In the industry, hospitals have played more important role than any others, where doctors, nurses, medical technicians, administrative staff, etc cooperatively works hard. Among them, nurses capture 40 percents of specialized hospital workers and their role for patients as customers is essential. Therefore, it could be one of the most important keys to increase the productivity and wellbeing of nurses with respect to enhancing efficiency and competitiveness of operating hospitals. In this paper the impact of nurses' job satisfaction, job stress, burnout, and organizational citizenship behavior on their productivity is studied. The subjects were 576 nurses in 20 different hospitals in Seoul, Kyounggi, etc. We held hypotheses and statistically tested and analysed them, using SPSS 20.0 software. Thus, we found various significant results(p<0.05), and they will give useful suggestions for managing nurse manpower and enhancing their productivity.

• The Journal of Asian Finance, Economics and Business
• /
• 제8권9호
• /
• pp.235-247
• /
• 2021

The objective of this paper is to clarify the relationship between ICT application and labor productivity in Vietnamese manufacturing firms and connect it with the context of economic restructuring in Vietnam. The study uses data of 3,428 manufacturing firms from the General Statistics Office of Vietnam and regression models. In addition to the general model, the study also runs the models for sub-samples of firms of different production technology levels. Research results show two main points. First, information technology can enhance the labor productivity of Vietnamese manufacturing firms. This is true for both ICT hardware applications, ICT services, ICT software solutions, and employees' ICT skills in firms. Second, manufacturing firms with higher levels of production technology use ICT more effectively and achieve a higher impact on labor productivity. The results confirm that the Vietnamese government can stimulate ICT application and digital transformation in firms, thereby increasing labor productivity and promoting economic restructuring in the direction of shifting from agriculture to industry and from low-tech industries to high-tech ones. The results also provide implications for business managers and policymakers in other developing countries who are adopting the digital economy as a development strategy.