• 한국산학기술학회논문지
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• 제18권7호
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• pp.26-32
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• 2017

VOD 서비스는 전자프로그램가이드와 더불어 가장 성공한 데이터방송 서비스의 사례로 손꼽히고 있다. 특히, VOD 서비스는 기존 방송사의 수익모델 (가입자 기반 수신료, 광고료) 외에 추가 수익을 제공하기 때문에 각 방송사들은 고유의 VOD 서비스를 개발하고 매출 향상을 위해서 빈번한 개선 작업을 수행하고 있다. 이는 곧 새로운 VOD 서비스 개발로 이어지기 때문에 개발업체는 빈번한 개발 요구에 효과적으로 대응할 방법을 고민하고 있다. 이와 같은 배경 속에서 본 연구는 다수의 사례연구를 통해 그 효율성이 입증된 피처지향 분석모델을 VOD 서비스 개발에 적용하기 위한 기반연구를 수행하였다. 본 연구에서 사용한 피처지향 분석모델은 카네기멜론대학 SEI에서 개발한 FODA (Feature-Oriented Domain Analysis)로서 FODA는 특정 도메인에 속한 소프트웨어의 피처모델을 개발하고 그 피처모델을 기반으로 고객과 함께 소프트웨어의 형상을 결정하는 도구를 제공한다. 본 연구는 VOD 서비스의 피처모델을 개발하고 그 피처모델과 정합된 VOD 서비스의 기능과 테스트케이스를 개발하여 FODA의 활용 범위를 확장하였다. 또한, 피처지향 분석모델로 생성된 피처모델, 기능명세, 테스트 케이스를 활용할 때 가능한 VOD 개발 프로세스도 제안하였다.

• 한국시뮬레이션학회:학술대회논문집
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• 한국시뮬레이션학회 1992년도 제2회 정기총회 및 추계학술 발표회 발표논문 초록
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• pp.1-1
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• 1992

This paper presents a user-oriented port expansion simulation model that determines the future economic port capacity to meet the projected demand. The model consists of two parts; a physical impact simulation, and an economic impact simulation. The first part of the model simulates the effects caused by the port capacity expansion. The second part evaluates the port economics due to changes in the port capacity. The model was validated by applying it to the actual port expansion followed at the Port of Mobile, Alabama. A case study is then presented to demonstrate the capacity of the model with a coal handling port, the McDuffie Terminals at the Port of Mobile.

• 한국전자거래학회지
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• 제1권2호
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• pp.77-92
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• 1996

In recent years, the manufacturing industry begins to demand the PDM which integarates design and manufacturing information concurrently to reduce the time-to-market of new products. However, current commercialized PDM tools have drawbacks in representing by relational data modeling a variety of data types such as CAD files, images, audio, long text, etc. For this reason, object-oriented approaches are suggested as an alternative. In this paper, using one of object-oriented approaches, Rumbaugh's OMT(Object-Modeling Technique), we propose a data model of drawing information management systems essential for PDM. The scope of the model is limited to the information management for drawings, parts, and product structures. Static, dynamic and functional models are suggested in detail. In the models, the drawing status is classified into on-progress, approved, disposed, and released. Also, parts are classified into products, assemblies, and components.

• 정보처리학회논문지D
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• 제15D권5호
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• pp.621-628
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• 2008

오늘날 대부분의 기업들은 외부상황에 신속하게 비즈니스를 바꿀 수 있도록 하는 온디맨드 비즈니스 (On-demand business)를 구현하기 위해 IT 시스템의 유연성을 필요로 한다. 서비스 지향 아키텍처(Service Oriented Architecture: SOA)는 온디맨드 운영환경에서의 비즈니스 유연성을 가능하게 하는 인프라스트럭처 (infrastructure)를 제공한다. 오늘날의 이러한 요구사항을 충족시키기 위하여 SOA 애플리케이션 개발에 맞게 비즈니스 프로세스의 유연성을 확보하고 재사용을 증진시키기 위한 접근법이 필요하다. 그러므로 본 논문에서는 소프트웨어 프로덕트 라인 방법의 가변성 분석 기법을 사용하여 비즈니스 프로세스 패밀리 (family)에서 나타날 수 있는 가변성을 분석하고 이를 명시적으로 비즈니스 프로세스 패밀리 모델 (Business Process Family Model: BPFM)로 표현하는 방법을 제시한다. 또한 이 방법의 사용을 지원하기 위해 개발한 도구에 대해 설명한다. 이는 BPFM을 모델링하고 BPFM으로부터 가변성 결정과 가지치기 과정을 거쳐 자동 비즈니스 프로세스 모델 (Business Process Model: BPM)을 생성하는 기능들을 가지고 있다. 본 논문에서 제시하는 비즈니스 프로세스 패밀리의 가변성 분석을 통하여 비즈니스와 이를 지원하는 IT 시스템은 비즈니스 환경의 변화에 신속하게 대응할 수 있게 된다.

• 한국지역사회생활과학회지
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• 제17권4호
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• pp.67-80
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• 2006

This study conducted research on the actual state of community-oriented services for elderly rural inhabitants and their desire related to them to develop a local community service network model suitable to the characteristics of rural longevity villages. The research was conducted on 906 elderly people over 65 living in 20 rural longevity villages through questionnaires assessing filming and economy, economic activity, health care, learning and leisure activities as well as asking their wants and needs relative to local community services. As a result, it was found rural elderly people showed a high desire for local community services such as health, transportation and economy activity. In addition, they were mainly cultivating farm products as their economic activity and showed a high demand in the future as well. Most were found to take a walk in the healthcare field and showed a high demand for health examinations, health education, health consulting, hot spring bathing and basking in the woods. Respecting learning, social and leisure activities, they were mostly found to watch TV and do house chores, and showed a high desire for village environment repair, traditional farm music, visiting and tourism. With the above results, it is expected that the desire of rural elderly for such services can be satisfied, and the development of a local community service network model suitable to the characteristic of a local community is recommended.

• 융합보안논문지
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• 제17권3호
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• pp.51-57
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• 2017

VOD 서비스는 일반 유료방송가입자들 사이의 보편적인 인기뿐만 아니라 가입자 기반 수신료, 광고료와 같은 기존 방송사의 수익 외의 추가 수익을 제공하고 있다. 이와 같은 이유로 각 방송사들은 자신의 VOD 서비스를 개발하고 매출을 높이기 위해 잦은 개선 작업을 수행하기 때문에 개발업체는 이런 개발 요구들에 효과적으로 대응할 방법이 필요한 실정이다. 이 에 본 연구는 사례연구들을 통해 그 효율성이 입증된 대표적 피처지향 분석모델인 FODA (Feature-Oriented Domain Analysis)를 VOD 서비스 개발에 적용하였다. FODA는 카네기멜론대학 SEI에서 개발한 피처지향 분석모델로서 특정 도메인에 해당하는 소프트웨어의 피처모델을 개발하고 이를 기반으로 고객이 원하는 소프트웨어 형상을 결정하는 도구를 제공한다. 본 연구는 개발업체와 함께 VOD 서비스 도메인의 피처모델을 개발하고 VOD 서비스 개발 프로세스 향상을 위한 피처모델 기반의 VOD 서비스 기능과 테스트케이스들을 개발하였다.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제4권2호
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• pp.129-134
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• 2004

XML is the new universal format for structured documents and data on the World Wide Web. As the Web becomes a major means of disseminating and sharing information and as the amount of XML data increases substantially, there are increased needs to manage and design such XML document in a novel yet efficient way. Moreover a demand of XML Schema(W3C XML Schema Spec.) that verifies XML document becomes increasing recently. However, XML Schema has a weak point for design because of its complication despite of various data and abundant expressiveness. Thus, it is difficult to design a complex document reflecting the usability, global and local facility and ability of expansion. This paper shows a simple way of modeling for XML document using a fundamental means for database design, the Entity-Relationship model. The design from the Entity-Relationship model to XML Schema can not be directly on account of discordance between the two models. So we present some algorithms to generate XML Schema from the Entity-Relationship model. The algorithms produce XML Schema codes using a hierarchical view representation. An important objective of this modeling is to preserve XML Schema's object-oriented concepts such as reusability, global and local ability. In addition to, implementation procedure and evaluation of the proposed design method are described.

• 산업경영시스템학회지
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• 제23권56호
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• pp.19-34
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• 2000

Impact of business process re-engineering requires the fundamental rethinking of how information systems are analyzed and designed. It is no longer sufficient to establish a monolithic system for fixed business environments. Information systems must be adaptive in nature. This demand is also applied in production domain. Enabling concept for the adaptive information system is reusability. This paper presents a new object-oriented analysis process for creating such reusable software components in production domain, especially for production planning and scheduling. Our process called MeCOMA is based on three meta-models: physical object meta-model, data object meta-model, and activity object meta-model. After the three meta-models are extended independently for a given production system, they are collaboratively integrated on the basis of integration pattern. The main advantages of MeCOMA are (1) to reduce software development time and (2) to consistently build reusable production software components.

• 한국경영과학회:학술대회논문집
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• 대한산업공학회/한국경영과학회 1993년도 춘계공동학술대회 발표논문 및 초록집; 계명대학교, 대구; 30 Apr.-1 May 1993
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• pp.62-71
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• 1993

Recently, the computer software technology is not keeping pace with the increasing demand of application software development and rapid changes in business environment. To overcome this "software crisis", many researchers have studied the methodologies to improve the productivity in software development and the flexibility of software usage. Among these methodologies, the most promising and intensively studied methodology is the Object-Oriented Approach The purpose of this study is, therefore, to examine the applicability of the Object-Oriented Approach for improving productivity and flexibility in Management Information Systems development. For an application, we selected a financial planning model, especially focusing on the budgeted income statement. In this thesis, we identified relevent objects in the budgeted income statement, and represented them in the object models. By implementing these object models using C++ language, we evaluated their adaptability in the budget-making process, and showed, by comparing them with the existing Planning '||'&'||' Modeling Languages such as IFPS(Interactive Financial Planning Saystem), their practicability in Management Information Systems. The results of this study are as follows: First, the same object models can be used in making the budgeted income statement both in the department level and in the corporate level. Second, the object models provide the flexibility and extensibility of an application program in case of the changes in business environment. Third, the Object-Oriented Approach is a practical methodology to improve the productivity and cut down the maintenance cost of application software development.t.

• 한국농공학회지
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• 제43권5호
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• pp.83-92
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• 2001

As a result of the recent water resources crisis, development of water management automation system becomes important. This system should be developed with open architecture in order to flexibly meet the spacial and time change of irrigation water demand. Thereby, water management automation system requires open architecture and suitable software program. This study presents an application of object-oriented methodology for Open Water Management Program(OWMP). Accordingly, OWMP provides a high degree of reliability which allows modification of parameters by change of region or time to be possible. OWMP consists of Data Base Management System(DBMS) and Model System. DBMS makes it possible to analyze data related with planning water schedule and establishing database. Model System calculates reservoir inflow, reservoir effluent and basin water demand. An operator decides the reservoir operation with results of Model System and DBMS. OWMP could be adapted to the planning and decision for saving water.