• Title/Summary/Keyword: methodology(方法論)

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Negative Side Effects of Denormalization-Oriented Data Modeling in Enterprise-Wide Database Design (기업 전사 자료 설계에서 역정규화 중심 데이터 모델링의 부작용)

  • Rhee, Hae-Kyung
    • Journal of the Institute of Electronics Engineers of Korea CI
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    • v.43 no.6 s.312
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    • pp.17-25
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    • 2006
  • As information systems to be computerized get significantly scaled up, data modeling issues apparently considered to be crucial once again as the early 1980's under the terms of data governance, data architecture or data quality. Unfortuately, merely resorting to heuristics-based field approaches with more or less no firm theoretical foundation of knowledge with regard to criteria of data design lead quite often to major failures in efficacy of data modeling. In this paper, we have compared normalization-critical data modeling approach, well-known as the Non-Stop Data Modeling methodology in the literature, to the Information Engineering in which in many occasions the notion of do-normalization is supported and even recommended as a mandatory part in its modeling nature. Quantitative analyses have revealed that NS methodology ostensibly outperforms IE methodology in terms of efficiency indices like adequacy of entity judgement, degree of existence of data circulation path that confirms the balancedness of data design and ratio of unnecessary data attribute replication.

The Quality of System Development Methodology and its Relationship to Performance Outcomes (시스템 개발 방법론의 품질과 방법론 적용 성과와의 관계)

  • Kim, Ji Young;Kim, Sung Kun
    • Journal of Information Technology Applications and Management
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    • v.21 no.2
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    • pp.127-147
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    • 2014
  • A methodology is often used in solving complex problems. As a typical case of complex problem solving, development of information systems mostly requires a use of system development methodology. However, it is not always easy or smooth for organizations to adopt the methodology and to achieve a positive outcome from their application in real project situations. Although there are a few studies to find out success factors in the implementation of the methodology, they did not take into consideration essential characteristics of the methodology. This study aims to analyze the quality of the methodology as a key determinant to influence the performance of the methodology application.

Rethinking Methodology of Regional Geography in the Korean Traditional Geographical Thoughts (한국 전통지리 사상에서의 지역지리 연구방법론의 재조명)

  • Park, Tae-Hwa
    • Journal of the Korean association of regional geographers
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    • v.8 no.2
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    • pp.161-169
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    • 2002
  • The traditional methodology of Korean regional studies had been shifted by geographic thoughts and philosophy as follows; Environmentalism or Environmental determinism stemming from geomancy were dominant methodology in the Korea era. An idiographic approach was introduced based on the encyclopedic description of geographic factors of villages for the centeralization of power in the Chosun era. A systematic geography that pursues scientific laws of regional differences which results from the interactions of human and nature had emerged through field works of some practical school in the later Chosun era.

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A Systematic Construction of Object-Oriented Methods (객체지향 개발방법의 체계적 구성)

  • Kim, Hyung-Ho;Kim, Young-Gon;Bae, Doo-Hwan;Kim, Min-Kyung;Yoo, Byung-Kyu
    • Journal of KIISE:Software and Applications
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    • v.27 no.5
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    • pp.488-498
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    • 2000
  • Object-oriented methodologies are widely used in the development of huge and complex systems since these methodologies produce the comprehensible and extensible model of systems. In order to apply an object-oriented methodology to a software development, developers should derive a method customized to a specific project from the methodology and, then, construct a development process from the method. Unfortunately, existing object-oriented methodologies lack a systematic facility for the construction of a method and a process. In this paper, we present a customizable object-oriented methodology to support the systematic derivation of a project specific method from the generic methodology. To derive a project specific method from the methodology, we transform the problem of a derivation to a planning problem and apply planning techniques. Our planning technique uses the description of an architecture that captures the structure and characteristics of a software under development as input and constructs an appropriate method with respect to the architecture. The architecture-centered construction facilitates the effective handling for the characteristics of the software since an architecture capture the decisions that must be maintained consistently during the development.

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Feasibility Study on the Risk Quantification Methodology of Railway Level Crossings (철도건널목 위험도 정량평가 방법론 적용성 연구)

  • Kang, Hyun-Gook;Kim, Man-Cheol;Park, Joo-Nam;Wang, Jong-Bae
    • Proceedings of the KSR Conference
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    • 2007.05a
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    • pp.605-613
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    • 2007
  • In order to overcome the difficulties of quantitative risk analysis such as complexity of model, we propose a systematic methodology for risk quantification of railway system which consists of 6 steps: The identification of risk factors, the determination of major scenarios for each risk factor by using event tree, the development of supplementary fault trees for evaluating branch probabilities, the evaluation of event probabilities, the quantification of risk, and the analysis in consideration of accident situation. In this study, in order to address the feasibility of the propose methodology, this framework is applied to the prototype risk model of nation-wide railway level crossings. And the quantification result based on the data of 2005 in Korea will also be presented.

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Semiotic Approaches to New Archival Methodology (새로운 기록방법론을 위한 기호론적 접근)

  • Lee, Youngnam;Jo, Minji
    • The Korean Journal of Archival Studies
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    • no.41
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    • pp.113-173
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    • 2014
  • For the past few years, there has been active seeking of archival practices outside of public institutions. For example, there is oral history archive which has an actual field of its own, community archive, archives of everyday life, cultural resources archive, digital archive, and post-modern archive with its discourse practical character. In this reading, such flow is organized through everyday paradigm, and examines new archival methodology that is suitable for it. Through such critical mind, semiotic approach is taken and the need, direction and alternative of archival methodology is offered. Especially, archival methodology, which can be applied to archives is thoroughly observed. Also, the way how sign practices can be executed in the archival field is explained through specific examples. Of course, it is clearly stated that this is an instance, and that it is an archival methodology that can be applied to public institutions. We hope this would be a discuss that would enable a comprehensive understanding of records.

Forecasting Methodology of the Radio Spectrum Demand (무선자원 서비스 수요예측 방안)

  • Kim Jeom-Gu;Jang Hee-Seon;shin Hyun-Cheul
    • The Journal of Information Technology
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    • v.5 no.4
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    • pp.173-183
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    • 2002
  • In this paper, we propose an efficient forecasting methodology of the mid and long-term frequency demand in Korea. The methodology consists of the following three steps: classification of basic service group, calculation of effective traffic, and frequency forecasting. Based on the previous studies, we classify the services into wide area mobile, short range radio, fixed wireless access and digital video broadcasting in the step of the classification of basic service group. For the calculation of effective traffic, we use the measures of erlang and bps. The step of the calculation of effective traffic classifies the user and basic application, and evaluates the effective traffic. Finally, in the step of frequency forecasting, different methodology will be proposed for each service group.

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A Literature Review of Spillover Mechanisms and Methodology to Evaluate the Spillover Effect of Public Funded R&D Programs (공공연구개발사업의 기술파급효과 측정을 위한 기술파급 메커니즘과 측정 방법론에 대한 문헌연구)

  • Lee, Younsuk;Yoon, Hyoung-No;Choi, Jeong-Woo
    • Journal of Technology Innovation
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    • v.22 no.3
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    • pp.225-260
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    • 2014
  • In this paper, we present a literature review of the mechanisms and methodology for technology spillover, in order to provide a theoretical and practical foundation for estimating the technology spillover effect of public funded R&D programs. Our research consists of four parts. First, we investigate what technology spillover is and how it works. Second, we review the methodology used to empirically measure technology spillover, with a view to understanding the advantages and disadvantages of each method. Third, we identify the gap between the spillover phenomenon and its estimated results, caused by the limitations of the methodology, and discuss the challenges in measuring technology spillover. Finally, we present several considerations to improve the measurement of technology spillover in the context of public funded R&D programs. Our paper provides policy makers and researchers with basic knowledge about technology spillover and helps them suitably evaluate the results obtained from the literature review. In addition, it contributes towards improving the existing methodology by recognizing the gap between the spillover phenomenon and the methodology.

A Study for GASP(GIS Audit Standard Procedure) methodology to set up the GIS Audit process (GIS감리절차 확립을 위한 감리방법론(GASP)엔 관한 연구)

  • 신동빈;맹홍주;전성자
    • Spatial Information Research
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    • v.10 no.1
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    • pp.29-43
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    • 2002
  • The purpose of this study is to set up the GIS Audit methodology through the definition of standard procedure ailed GIS Audit criteria and the result of preliminary study about the GIS Audit. the frame of GIS Audit criteria and the result of preliminary study about the GIS Project and check the GIS Audit methodology is to define a standard process of GIS Project and check the GIS Project according to the standard process. We named the method as CASP(GIS Audit Standard Procedure). GASP method means doing Pilot Project for setting the sample standard procedure(named Prototype) of total GIS Project process, and checking the activity to fulfill the prototype. GASP method is advanced method for GIS Audit to analyze the full range of GIS Project and characteristics of GIS contents.

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The extension of the IDEA Methodology for a multilevel secure schema design (다단계 보안 스키마 설계를 위한 IDEA 방법론의 확장)

  • Kim, Jung-Jong;Park, Woon-Jae;Sim, Gab-Sig
    • The Transactions of the Korea Information Processing Society
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    • v.7 no.3
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    • pp.879-890
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    • 2000
  • Designing a multilevel database application is a complex process, and the entities and their associated security levels must be represented using an appropriate model unambiguously. It is also important to capture the semantics of a multilevel databse application as accurate and complete as possible. Owing to the focus of the IDEA Methodology for designing the non-secure database applications on the data-intensive systems, the Object Model describes the static structure of the objects in an application and their relationships. That is, the Object Model in the IDEA Methodology is an extended Entity-Relationship model giving a static description of objects. The IDEA Methodology has not been developed the multilevel secure database applications, but by using an existing methodology we could take advantage of the various techniques that have already been developed for that methodology. That is, this way is easier to design the multilevel secure schema than to develop a new model from scratch. This paper adds the security features 새? Object Model in the IDEA Methodology, and presents the transformation from this model to a multilevel secure object oriented schema. This schema will be the preliminary work which can be the general scheme for the automatic mapping to the various commercial multilevel secure database management system such as Informix-Online/Secure, Trusted ORACLE, and Sybase Secure SQL Server.

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