• 제목/요약/키워드: database design

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클러스터링을 이용한 웹기반 선형/기본설계 지원 데이터베이스 시스템 구축에 관한 연구 (A Study on the Development of Web Based Database System with Clustering for Ship Hull Form and Basic Design)

  • 권영중;이정준
    • 한국해양공학회:학술대회논문집
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    • 한국해양공학회 2001년도 춘계학술대회 논문집
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    • pp.38-42
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    • 2001
  • An engineering database system is presented for ship hull form and hasic design. Web i, nd clustering systems are adopted to develope the system. It is appeared that the system is efficient and useful for integrated ship design.

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안전한 데이터베이스 설계를 위한 객체지향 분석·설계 방법론 -역할기반 접근제어를 중심으로- (An Object-Oriented Analysis and Design Methodology for Secure Database Design -focused on Role Based Access Control-)

  • 주경수;우정웅
    • 한국컴퓨터정보학회논문지
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    • 제18권6호
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    • pp.63-70
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    • 2013
  • IT의 발전에 따라 다양하고 복잡한 기능을 가진 응용 시스템들이 요구되고 있다. 이러한 응용 시스템들은 대부분 데이터를 효율적으로 관리하기 위해 데이터베이스를 기반으로 구축된다. 그러나 응용 시스템 개발을 위하여 사용되고 있는 대부분의 객체지향 분석 설계 방법론들은 데이터베이스와의 상호 연관성을 명확하게 제공하지 못하고 있다. 보안과 관련된 요구사항들이 증가되면서 보안에 대한 중요성 역시 점차 증가되고 있다. 하지만 이러한 보안은 대부분 개발 마지막 과정에서 고려되기 때문에 요구사항 분석부터 구현에 이르기까지 시스템 개발 전 주기에 따른 일관된 보안 적용은 어려운 실정이다. 따라서 본 논문에서는 요구사항 분석부터 구현에 이르기까지, 보안이 강조된 '안전한 데이터베이스 설계를 위한 객체지향 분석 설계 방법론'을 제안한다. 제안한 '안전한 데이터베이스 설계를 위한 객체지향 분석 설계 방법론'은 대부분의 객체지향 분석 설계 방법론들이 제시하지 못했던 데이터베이스와의 상호 연관성을 제공할 뿐만 아니라, 보안이 강조된 모델링 언어인 UMLsec을 사용하여 보안이 데이터베이스 설계에 반영토록 하였다. 아울러 보안에 따른 구현을 위하여 관계형 데이터베이스의 역할기반 접근제어(RBAC; Role Based Access Control)를 사용한다.

메타 데이타베이스와 관리기의 설계 및 구현-통계 데이타베이스를 중심으로 (The Design and Implementation of Meta database and manager)

  • 안성욱
    • 자연과학논문집
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    • 제8권1호
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    • pp.109-114
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    • 1995
  • 통계 데이타베이스의 효율적 이용을 위해 통계 분석을 위한 요약 정보를 미리 계산하여 저장함으로써 사용자에게 빠른 응답시간내에 통계 정보를 제공하려는 요약 데이타베이스와 이의 효율적인 관리와 사용의 편리를 위한 메타 데이타베이스가 생성되고 관리되어야만 한다. 요약 데이타베이스를 효율적으로 이용한 통계 분석 작업의 환경과 사용자의 편이성을 지원하기 위하여 계층 구조 형태인 데이타 사전/디렉토리의 형태로 독립적으로 운영되는 메타 데이타베이스와 관리기의 설계 및 구현 작업과 이를 이용한 운영 방법 등이 제시되었다.

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조명 설계 시스템을 위한 데이터베이스 개발에 관한 연구 (A Study on the Development of Database for Lighting Design System)

  • 조성오
    • 한국실내디자인학회논문집
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    • 제13권4호
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    • pp.196-203
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    • 2004
  • In The Lighting design is important to acknowledge appearance space. Development of artificial light makes a extension to life space in the Modern life. With the rapid development of efficient light sources, have lighting design acquired the tools that allow artificial lighting to be produced with adequate illuminance levels. However, by the task of defining the objectives and methods behind discipline, of deciding on the criteria by which the artificial lighting that is now provide many available data to be anpaied. The main concern is which illuminace levels and types of lighting will ensure optimum visual performance, high productive and safety at design which are affordable. This study is support to standard design process with material reflection rate, installing the lighting fixture, task illuminance level and automatic arithmetic calculation during the lighting design. Lighting Design database can check and support other final lighting level. A quantitative light that is primarily oriented toward providing a recommended illuminance level, the criterion of develop a concept that goes beyond the requirements that would ensure productivity and safety to meet the needs of the architecture and interior space. illuminance level is compose to space task and space code according to KS A 3011. To be able to design the visual effect of an environment the central reference quantity has to provided the Database.

공공교육시설 설계프로세스의 디지털 건축 디자인 도입 가능성에 관한 연구 -계획설계 단계에서 BIM의 데이터베이스(DB)이용 중심으로- (A Study on the Possibility of Introduction of Digital Architectural Design by Public Education Facilities of the Design Process - Focus on Use the Database of BIM -)

  • 성기용;조병성
    • 한국디지털건축인테리어학회논문집
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    • 제12권4호
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    • pp.5-12
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    • 2012
  • In this study, a digital design process by utilizing the program's database functionality in BIM, public education facilities master plan presented an alternative model to the layout of the design process. First of all, public education facilities master plan design process with digital design process and how to use the database of BIM in the process for review of the possibility of. Secondly, public educational facility planning the placement as needed for the switch to digital design limits, and the basic plan design at various elementary school planning alternatives in a school building and the school site is required to investigate. Thirdly, as a way of using the database features of GDL BIM lnn and teachers on how to create a variable by setting up a number of different alternatives so that you can choose the architect thought to have to organize and visualize the possibility of quick. A quantitative way the basic plan design that repeats some of the measures that can be used for digital design change as a process of continuous research is needed.

Design of the Database Learning System based on Learner Management Techniques

  • Ahn, Jeong-Yong
    • Journal of the Korean Data and Information Science Society
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    • 제15권4호
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    • pp.707-716
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    • 2004
  • Recently, many areas of application such as statistics and industrial engineering are interested in the effective education of databases. In this article we design and implement a database learning system based on learner management techniques. The system supports a personalized/ team-centered learning environment, monitoring the learning attitude of learners, and a method for the assessment.

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개체관계 모형의 설계 특성과 성과에 관한 실험적 연구 (An Experimental Research on the Design Characteristics and Performance of the Entity-Relationship Model)

  • 정일주
    • 정보기술과데이타베이스저널
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    • 제6권2호
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    • pp.45-57
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    • 1999
  • This paper makes an attempt to find a systematic portion of the database design process, especially using the Entity-Relationship(E-R) model. Basically, we consider three aspects as a systematic portion of the database design process. They are, the strategy that a designer selects to design an E-R diagram, designer's cognitive style, and the knowledge and preference of the database designer. An experiment has been carried out in order to verify the systematic relationship between above-mentioned three aspects and the E-R modeling performance. The target system is a professional baseball system. A normative E-R diagram was constructed based upon 48 E-R diagrams produced during the experiment. The ANOVA process has been used to analyze the results. It has been found that there exist significant differences in query-answering capacity and the completeness of the E-R model among design methods. Individual differences in cognitive styles has not been found to be significantly related to the modeling performance.

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감성공학적 제품개발 시스템 구현에 관한 연구 (A Study on Implementation of Human Sensibility Ergonomics for Product Development)

  • 변상법;이동길;남택우;손승진;이순요
    • 대한인간공학회:학술대회논문집
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    • 대한인간공학회 1997년도 춘계학술대회논문집
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    • pp.196-199
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    • 1997
  • This paper describes the implementation process of Virtual Modeling system for a customer-oriented product. The human sense is measured and analyzed by physical design factors and can be applied also for the product design. The first step implementing virtual modeling is to make a human sensibility("Kansei") database. Human sensibility database is constructed with the relational data of Kansei words and design factors. The next step is extraction the design information from the human sensibility database by fuzzy inference algorithm. This design information is used for the input data for the graphic database. Virtual implementation software compounds 3D shape of product. The final product can be modified according to the customer's requirement.quirement.

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데이터베이스 분산 설계 지원 시스템 개발: 관계형 스키마를 입력으로 (Developing a Design Support System for Database Distribution : Relational Schema as an Input)

  • 이희석;지정강;김태훈;여지영
    • Asia pacific journal of information systems
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    • 제6권1호
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    • pp.165-194
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    • 1996
  • Data distribution is one of the most important steps in distributed database design. This paper proposes a methodology for distributing database by using a relational schema as an input. A design support system called DBDD (Database Distribution Design) is implemented within the framework of this methodology. The methodology consists of three phases such as (i) schema analysis, (ii) fragmentation, and (iii) allocation. In the schema analysis phase, all the table names are acquired from a global relational schema. In the fragmentation phase, fragments are generated according to transaction retrieval patterns. Furthermore, DBDD enhances the design quality by allocating fragments in a progressive manner. A real-life case is illustrated to demonstrate the practical usefulness of the DBDD.

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