• 제목/요약/키워드: point to consider

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e-비즈니스 IT 프로젝트 관리의 정성적 접근 모형의 개발 (A Qualitative Approach to eIT Project Management)

  • 정기호
    • 한국IT서비스학회지
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    • 제1권1호
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    • pp.45-55
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    • 2002
  • This paper suggests a new approach to IT project management based on a regular project meeting results to consider the recent project environment. The greater part of recent IT projects are related to e-business transformation. Transforming to e-business is a new problem very different from those they have been worked, in several point of views. Under e-business era, therefore any IT project is being implemented in more complex, dynamic and uncertain environment than traditional. That is, project leaders must consider more factors to control projects including resources, quality, risks, and technologies, and human resources. The project organizations and software corporations thus need to develop and establish new concepts or methodologies to manage e-business projects. In this point of view, an entropy model in this study is introduced for estimating and managing the uncertainty in project control using multi-attributes of project meeting. This paper proposes a new frame work based on entropy model using project meeting results to consider eIT project environment with a small pilot study.

접촉을 이용한 2차원 조인트들의 모델링에 관한 연구 (Modeling of 2D Joints Using Contact)

  • 한형석;박태원
    • 한국정밀공학회지
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    • 제14권2호
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    • pp.92-101
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    • 1997
  • In this paper, modeling methods for 2D joints are proposed. Earlier methods for modeling 2D joints that use geometric relationships may not consider irregularities or dynamic effects of joints. In any case, it is important to consider irregularities or dynamic effects. To consider those, methods that use dynamic contacts are proposed. With the method, 2D joints that have irregularities or dynamic effects amy be model- ed and analyzed. 2D joints that are developed are revolute, translational, gear and point-follower joint.

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CONSTRUCTION OF MANY d-ALGEBRAS

  • Allen, Paul J.
    • 대한수학회논문집
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    • 제24권3호
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    • pp.361-366
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    • 2009
  • In this paper we consider constructive function triples on the real numbers $\mathbb{R}$ and on (not necessarily commutative) integral domains D which permit the construction of a multitude of d-algebras via these constructive function triples. At the same time these constructions permit one to consider various conditions on these d-algebras for subsets of solutions of various equations, thereby producing geometric problems and interesting visualizations of some of these subsets of solutions. In particular, one may consider what notions such as "locally BCK" ought to mean, certainly in the setting provided below.

THE MOTION OF POINT VORTEX DIPOLE ON THE ELLIPSOID OF REVOLUTION

  • Kim, Sun-Chul
    • 대한수학회보
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    • 제47권1호
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    • pp.73-79
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    • 2010
  • A pair of point vortices of the same strength but opposite sign is called a vortex dipole. We consider the limiting case where two vortices approach infinitely close while the ratio of the strength to the distance kept constant. The motion of such point vortex dipole on the ellipsoid of revolution is investigated geometrically to conclude that the trajectory draws a geodesic up to the leading order of perturbation, whose direction is determined by the initial orientation of the dipole. Related issues are also remarked.

STABILITY IN FUNCTIONAL DIFFERENCE EQUATIONS WITH APPLICATIONS TO INFINITE DELAY VOLTERRA DIFFERENCE EQUATIONS

  • Raffoul, Youssef N.
    • 대한수학회보
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    • 제55권6호
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    • pp.1921-1930
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    • 2018
  • We consider a functional difference equation and use fixed point theory to obtain necessary and sufficient conditions for the asymptotic stability of its zero solution. At the end of the paper we apply our results to nonlinear Volterra infinite delay difference equations.

Some Properties of Sequential Point Estimation of the Mean

  • Choi, Ki-Heon
    • Journal of the Korean Data and Information Science Society
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    • 제16권3호
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    • pp.657-663
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    • 2005
  • Under the minimum risk point estimation formulation of Robbins(1959), we consider the sequential point estimation problem for normal population $N({\theta},\;{\theta})$ with unknown parameter ${\theta}$. In the case of completely unknown ${\theta}$, Stein's(1945) two-stage procedure is known to enjoy the consistency property, but it is not even first-order efficient. In the case when ${\theta}>{\theta}_L\;where\;{\theta}_L(>0)$ is known, the revised two-stage procedure is shown to enjoy all the usual second-order properties.

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국내 소프트웨어 개발사업에 적합한 기능점수규모 예측방법에 관한 연구 (A Study on Estimating Function Point Count of Domestic Software Development Projects)

  • 박찬규;신수정;이현옥
    • 경영과학
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    • 제20권2호
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    • pp.179-196
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    • 2003
  • Function point model is the international standard method to measure the software size which is one of the most important factors to determine the software development cost. Function point model can successfully be applied only when the detailed specification of users' requirements is available. In the domestic public sector, however, the budgeting for software projects is carried out before the requirements of softwares ere specified in detail. Therefore, an efficient function point estimation method is required to apply function point model at the early stage of software development projects. The purpose of this paper is to compare various function point estimation methods and analyse their accuracies in domestic software projects. We consider four methods : NESMA model, ISBSG model, the simplified function point model and the backfiring method. The methods are applied to about one hundred of domestic projects, and their estimation errors are compared. The results can used as a criterion to select an adequate estimation model for function point counts.

우리나라 초등학교 수학용어의 분석과 비판: 몇 가지 예를 중심으로 (An Analysis And Criticism on Mathematics Terminologies Used in Elementary School Mathematics: Focused on Some Examples)

  • 박교식
    • 한국초등수학교육학회지
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    • 제17권1호
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    • pp.1-17
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    • 2013
  • 본 연구에서는 먼저 여러 맥락에서 사용하는 '값', '꼭짓점', '높이'에 관해, 그 다음에 지속적으로 사용하지 않는 '겨냥도', '머리셈', '영점 일의 자리/영점 영일의 자리/영점 영영일의 자리', '자릿수', '자연수 부분/소수 부분'에 관해, 마지막으로는 초등학교 교과서/익힘책에서 사용하는 중학교 수학용어 '거리', '수직선', '식의 값'에 관해 논의했다. 이러한 논의를 통해 결론으로 다음의 네 가지를 제안한다. 첫째, 수학용어로서의 '값'을 강조해야 한다. '거리'는 중학교 용어인 바, 초등학교에서는 '높이'를 '선분의 길이'로 통일하는 것을 고려할 필요가 있다. 둘째, 대체 표현이 가능한 '자릿수', '식의 값', '자연수 부분/소수 부분', '각뿔의 꼭짓점/원뿔의 꼭짓점', '머리셈'을 사용하지 않아야 한다. 셋째, '대소수', '진소수'의 사용을 고려할 필요가 있다. 또, '겨냥도'의 사용을 확대할 필요가 있다. 넷째, '수직선'을 초등학교수학용어로 추인하는 것을 고려할 필요가 있다. 또, '소수 첫째 자리', '소수 둘째 자리', '소수 셋째 자리'를 '영점 일의 자리', '영점 영일의 자리', '영점 영영일의 자리'와 동등하게 사용할 수 있어야 한다.

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