• 제목/요약/키워드: Data-Oriented

검색결과 3,094건 처리시간 0.026초

토지정보체계의 객체지향 도형정보데이타베이스 개발 (The Development of An Object-Oriented Graphic Database Management System in Geographic Information Systems)

  • 황국웅;이규석
    • 대한공간정보학회지
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    • 제4권1호
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    • pp.23-29
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    • 1996
  • 본 연구에서는 토지정보체계(GIS)의 도형정보 처리를 위한 객체지향 데이타베이스를 개발하고, 이를 위하여 사용된 프로그램 개발방법을 설명하였다. 본 연구의 결과, 도형자료를 저장하고 관리하기 위한 자료모델을 개발하였으며, 개체지향 프로그래밍기법에 의한 도형자료 관리를 실현하였다. 도형자료 처리를 위한 자료모델을 개발함에 있어서, 관망해석을 하지 않는 자료관리만을 목표로 하였기 때문에 위상학적(topology) 자료구조를 갖지 않는 단순한 벡터모델을 사용하였다. 차후에 관거의 연결망을 기초로 하는 분석기능을 개발할 경우에는, 도형자료 처리를 위한 자료구조 부분에 대하여 수정 또는 추가 개발이 필요할 것이다.

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Option을 고려한 객체지향형 Product Structure 설계 (The Object-Oriented Design of the Product Structure Based on Options)

  • 고석완;김선호;정석찬
    • 대한산업공학회지
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    • 제24권3호
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    • pp.457-473
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    • 1998
  • As a product structure or BOM(bill of material) of products is hierarchically structured, the design based on the concept of relational data base modeling causes low performances in data search or processing. For this reason, an object-oriented approach to designing a product structure is proposed in this paper. Using Rumbaugh's OMT (Object Modeling Technique) method, classes of parts, BOM structure, options, and models are defined and their class-relationship diagrams are proposed. For the representation of the BOM structure suitable for the object-oriented paradigm, a new data architecture called the BOM item class is suggested. It is expected that the proposed data structure ensures better reusability and expandability due to the modularity.

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의류제품 상표충성도와 생활양식과의 관계 연구 (A Study on the Relationship between Clothing Brand Loyalty and Lifestyles)

  • 이부련
    • 대한가정학회지
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    • 제36권10호
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    • pp.23-34
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    • 1998
  • The purpose of this study was to identify the relationship between clothing Brand Loyalty and lifestyles The questionnaire was administered to 644 males and females aged 30-40 in Taegu during November 24 to November 28 of 1997. Data was analyzed by frequency, percentage, mean, standard deviation, factor analysis, reliability test MANOVA and ANOVA by using SPSS package. 1. The lifestyles of the responednts were classified into five types such as consumption-oriented, economics-oriented, social-oriented, family-oriented, and conservative-oriented type. 2. The results of clothing Brand Loyalty and lifestyle analysis were as follows; 1) In case of males, the group of consumption-oriented type and in case of females, three groups of consumption-oriented, social-oriented and family-oriented types had great concern for brand loyalty in lifestyles and brand loyalty. 2) With relation to brand loyalty and lifestyles, thirties-aged respondents had a positive tendency to brand loyalty in consumption-oriented and social-oriented types, but forties-aged ones had a positive tendency to brand loyalty in consumption-oriented, social-oriented and family-oriented types. 3) With relation among the academic careers, lifestyles and brand loyalty, three groups(consumption-oriented, social-oriented and family-oriented types) under high-school graduates made high response to brand loyalty, and two groups (consumption-oriented and social-oriented types) of college graduates showed something responsive to it and the consumption -oriented persons of graduate school and upward made response to brand loyalty. 4) With relation among an income, brand loyalty and lifestyles, three types(consumption-oriented, social-oriented and family-oriented types) of an income not exceeding one million and half won a month were related to brand loyalty. And two types(consumption-oriented and social-oriented types) of an income below two million won a month made high response to brand loyalty. And the consumption-oriented type of an income below three million won and more than three million and half a month made good response to brand loyalty. 5) In general relation between brand loyalty and five lifestyles, the consumption-oriented type made positive response to brand loyalty and the social-oriented type was in the second place and the family-oriented type ranked next to the social-oriented type. But the economics-oriented and conservative-oriented type were not related to brand loyalty. 6) It was found that there was a difference between brand loyalty and the same lifestyle according to individual characteristics.

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객체재향 개념을 반영한 유동해석 후처리 프로그램에 대한 연구 (Study on a post-processing program for flow analysis based on the object-oriented programming concept)

  • 나정수;김기영;김병수
    • 한국전산유체공학회지
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    • 제9권2호
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    • pp.1-10
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    • 2004
  • In the present study, a post-processing program is developed for 3D data visualization and analysis. Because the graphical user interface(GUI) of the program is based on Qt-library while all the graphic rendering is performed with OpenGL library, the program runs on not only MS Windows but also UNU and Linux systems without modifying source code. The structure of the program is designed according to the object-oriented programming(OOP) concept so that it has extensibility, reusability, and easiness compared to those by procedural programming. The program is organized as modules by classes, and these classes are made to function through inheritance and cooperation which is an important and valuable concept of object-oriented programming. The major functions realized so far which include mesh plot, contour plot, vector plot, streamline plot, and boundary plot are demonstrated and the relevant algorithms are described.

라이프 스타일 유형에 따른 침구 사용에 관한 연구 (A Study on the Relationship between Life Styles and Use of the Bedclothes)

  • 박광희;김문영;홍재경
    • 대한가정학회지
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    • 제40권6호
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    • pp.173-184
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    • 2002
  • The purpose of this study was to investigate the relationship between life styles and use of the bedclothes. The data were obtained from questionnaires completed by 356 women in Daegu area whose age was 20 years and older. The SPSS package was used for data analysis which includes frequency, percentage, $\chi$$^2$-test, ANOVA, Scheffe test, and cluster analysis. The life styles of the respondents were classified into 6 factors such as shopping-oriented, family-oriented, achievement-oriented, value-oriented, conservative, and economic type. Three clusters were developed by 6 factors of life styles. Demographic characteristics and preference, use, and purchase behavior of the bedclothes for three clusters were analysed.

라이프스타일 집단유형화에 따른 패션 광고매체 선호도 (The Preference on Fashion Advertisement Media by Lifestyle Group Types)

  • 김선숙
    • 대한가정학회지
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    • 제49권8호
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    • pp.97-111
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    • 2011
  • This study aimed to present marketing communication strategy for lifestyle groups. Consumers' preference on advertisement media/information source, advertisement appeal types, and on-line media use were examined by lifestyle groups. This study was executed by web survey and off-line survey. A total of 141 data was obtained and data were analyzed by PASW 18.0. Results were as follows: First, 4 types of lifestyle groups were made up by holistic approach; 'price oriented', 'traditional symbolic', 'positive life', and 'open mind enjoyment'. 'Positive life type' preferred every type of ads media. 'Traditional symbolic type' liked magazine and 'price oriented type' and 'open mind enjoyment type' thought off-line store display more important. For ads appeal types, 'positive life type' preferred social oriented appeal type. Every group except 'price oriented type' preferred emotional appeal type and especially 'open mind enjoyment type' liked the most emotional ads appeal type.

객체지향기법을 이용한 전력계통 해석을 위한 그래픽 소프트웨어 개발 (The Development of Graphics Package for Power System Analysis using Object-Oriented Programming)

  • 김재현
    • 대한전기학회논문지:전력기술부문A
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    • 제55권10호
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    • pp.418-425
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    • 2006
  • This paper describes a simulation package for a power system using objected-oriented programming. The package includes four parts which are a power flow, a short circuit calculation, a transient simulation program, and an economic dispatch. The graphical user interface(GUI) is designed as a common platform which allows the user to create one-line diagrams of systems, specify components of power systems as well as simulation parameters, and view the output produced by the chosen application. The paper presents the data structure of the functional modules such as the draw module, power system data module, the power system simulation module, and the utility module using the object oriented programming. This package may be useful for educational and research purposes.

대학생의 자기효능감 유형에 따른 소비가치 (Consumption Value according to College Students' Self-Efficacy Typology)

  • 박은희;구양숙
    • 한국생활과학회지
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    • 제17권5호
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    • pp.927-938
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    • 2008
  • The purpose of this study was to classify self-efficacy typology and analyze the relationship between self-efficacy and consumption value of college students as consumers. Data were gathered by surveying college students living in Daegu and Kyungbook area using convenient sampling. 513 questionnaires were used in the statistical analysis. Data were analyzed by frequency, factor analysis, cluster analysis, correlation analysis, ANOVA, and Duncan-test. The findings are as follows. The self-efficacy typologies of college students were classified into three groups such as challenging confident accomplish oriented, stable uncertain accomplish oriented, and stable accomplish oriented. In the relationship of the self-efficacy was related to the sub-variables of consumption value. The self-efficacy oriented group showed different all the sub-variables of consumption value factors.

성인여성의 취업유형에 따른 쇼핑성향 및 구매기준 비교연구 (Comparison on Shopping Orientations and Purchase Criteria according to the Occupational Status among U. S. Female Consumers)

  • 이진화;홍재원
    • 대한가정학회지
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    • 제42권3호
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    • pp.51-64
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    • 2004
  • The purpose of this study was to compare shopping orientations and purchase criteria according to the occupational status; professionals, non-professionals, and homemakers among female consumers. Subjects were selected from mailing lists through a random sampling technique in the United States. Collection of the research data was made using an adaptation of the Total Design Method for implementing mail surveys. ANOVA, Regression, and Duncan Test were used to conduct the data analysis on 254 out of 1000 questionnaires. The three job status showed significant differences in 5 shopping orientations(sex role oriented, fashion conscious, credit oriented, catalog oriented, and value oriented). Even after controlling the effect of income and education level, significant differences were noticed in 4 shopping orientations, the exception being value conscious. Brand, price, and country of origin among the job status groups also showed significant differences in results for purchase criteria.

Drill-across연산자를 이용한 Snowflake schema 개념 설계 (Design of Snowflake schema concept using Drill-across Operator)

  • 김경주;오근탁;이윤배
    • 한국정보통신학회:학술대회논문집
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    • 한국해양정보통신학회 2004년도 춘계종합학술대회
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    • pp.354-357
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    • 2004
  • 데이터 웨어하우스는 주제 지향적이고, 통합적이며, 비 유동적인 데이터로써 의사결정에 필요한 정보들을 추출하여 OLAP(On-Line Analytical Processing)분석에 이용된다. 현재 OLAP 연산자와 스타 스키마 사이의 다차원 모델링에 관한 연구는 많이 진행되어 왔다. 본 논문에서는 drill-across 연산자를 통해 객체 지향 개념적 관계와 스타 스키마보다 한층 더 확장된 스노우 플레이크(snowflake) 스키마를 이용하여 관계를 설계하고자 한다. 설계를 통해 star schema에 적용되지 않았던 객체 지향 관계가 개선되었음을 알 수 있었다.

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