• Title/Summary/Keyword: item improvement

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A Study on the Legislation Scheme of the Public IT Project Ordering and Receiving Systems (공공IT 프로젝트 수발주 제도의 법제화 방안 연구)

  • O, Jong-U;No, Gyu-Seong;Son, Dong-Gwon;Kim, Sin-Pyo;Lee, Geun-Bae;Park, Yeong-Min
    • 한국디지털정책학회:학술대회논문집
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    • 2006.06a
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    • pp.319-353
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    • 2006
  • The purpose of this study is to generate a proper regulation improvement direction of the public IT project contract law through the current four contract methods and three methods of the awarding party of a contract method. The research method for this paper is derived from the written materials of the present public IT project contract law. Two problems have been processed in order to produce the results: the current contract methods and the awarding party of a contract method. The current contract methods consist of a competition contract, a private contract, and a supply methodology contract. The methods of the awarding party of a contract display a qualified evaluation regulation, the 2nd step competition bid, a standard cost separation tender, and a contract by a negotiation. The results exhibit that the general competition contract consists of four improvement items. The contract by a negotiation contains five improvement items. The group private contract has one improvement item. And the private contract includes one improvement item. These results implicate that the current public IT project contract law demands better improvement work for the ubiquitous Korea.

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Development of Parallel Short Forms of the Convergent Thinking and Problem Solving Inventory Utilizing Item Response Theory : A Case Study of Students in H University (문항반응이론을 적용한 융합적 사고 및 문제해결 역량진단 도구의 병렬 단축형 개발 : H 대학교를 중심으로)

  • You, Hyunjoo;Nam, Na-Ra
    • Journal of Engineering Education Research
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    • v.26 no.3
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    • pp.35-41
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    • 2023
  • The study was conducted to develop two parallel short forms for the Convergent thinking and Problem solving questionnaires which are part of H University's core competency diagnostic tools, based on Multi-Item Response Theory. Item responses of 2,580 students were analyzed using Graded Response Model(GRM) to determine item difficulty and discrimination of each item. The research results are as follows. Two parrallel short tests were developed for the Convergent thinking questionnaire consisting of 12 items which were originally 17 items. Likewise, the Problem solving questionnaire, which originally consisted of 15 questions, was divided into two parallel short forms, each consisting of 9 items. The reliability of the shortened parallel tests was confirmed through internal consistency analysis, and their similarity to the original tests was established through correlation analysis. This study contributed to quality management of competency-based education and programs at H University by developing shortened tests. Based on the results, implications were presented as well as limitations and discussions.

Study on Urban Households' Consumption Expenditure -Focusing on Housewives' Lifestyle- (도시가계의 비목별 소비지출에 영향을 미치는 변인-주부의 생활양식성향을 중심으로-)

  • 이승신
    • Journal of Families and Better Life
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    • v.17 no.3
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    • pp.17-32
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    • 1999
  • This study shows how the lifestyle of Housewife as well as usual socio-economic variables affect the expenditure of urban household. The Result of Factor Analysis revealed that the lifestyle of urban housewives were composed by four different traits. 1) self-improvement and rational trait 2) consumption-oriented convenience seeking trait 3) traditional-conservation trait 4) money-oriented variety seeking trait. Based on the Multiple regression analysis the analysis of the relative influence of variables which were associated with the expenditure of each item showed that influential variables for each item were different but economic variables(e, g , income saving, property etc) affected on most of expenditure. Socio-economic variables were more influential than lifestyle variables for every item. But lifestyle variables were influential the same as Socio-economic variables for unnecessary expenditure item more than necessary items particularly consumption-oriented convenience eeking trait and money-oriented variety seeking trait affected.

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The Effects of Item Parceling on Causal Parameter Testing and Goodness-of-Fit Indices in Structural Equation Modeling (구조방정식 모델에서 항목묶음이 인과 모수의 검정과 적합도 평가에 미치는 영향)

  • Cho, Hyun-Chul;Kang, Suk-Hou
    • Journal of Global Scholars of Marketing Science
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    • v.17 no.3
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    • pp.133-151
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    • 2007
  • The purpose of this article is to examine the effects of item parceling on the consistency of significance testing of the causal parameters with regard to the relationship between the relevant constructs, as well as the effects of the item parceling on the goodness-of-fit indices of LISREL's general models. Most of the researchers' major purpose of using structural equation modeling (SEM) is to test their research hypotheses associated with the causal parameters. Therefore, we investigated three general models of LISREL, rather than the frequently used confirmatory factor analytic (CFA) models by many other researchers. The results of the study showed that there was a high level of consistency in the calculated test statics of causal parameters between the item-parceled solutions and the item-level solutions, and that the item-parceled solutions had better goodness-of-fit indices, such as GFI, AGFI, CFI, and NFI, than the solutions at the item level. However, in terms of RMSEA, there was no such tendency.

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The Characteristic and Improvement of Flexibility Performance Item evaluated by "Housing Performance Grading System" (주택성능등급 가변성 세부성능 항목의 특성 및 개선방안)

  • Lee, Sung-Ok
    • KIEAE Journal
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    • v.11 no.6
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    • pp.29-35
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    • 2011
  • This study aims to suggest improvement plans and explain about the current situation for facilitating Long-life housing, based on the results on flexibility items among 27 items consisting the "Housing Performance Grading System". From the 9th of January, 2006 to the month of July in 2011, study has analyzed evaluation results on 216 different types for each grade and reviewed evaluation criteria and methods. Current evaluation criteria applies quantitative analysis, by calculating in percentage how much bearing walls and columns, which hinder flexibility, take up space in the household. The evaluation rate for each household was assessed in relation to its structural system, and a higher grade was given to column-typed structures. In addition, to facilitate long-life housing, this study extracted harmful factors, expanding the range of evaluation. The first step was to evaluate structure, which is the basic element. The second step can to evaluate the probability of applying resources in response to the changes of structural systems. As The third step, Flexibility item will evaluate the probability of moving the water-using area, suggesting gradual approach. Thus, through evaluations of flexibility items, the study aims to improve the quality of life in household, by avoiding uniform structures and acquiring more freedom for space designs.

An Estimation Method of Standard Time Data and a Case Study in Multi-Item Extremely Small Quantity Production (다품종 극소량생산시 표준시간자료의 산정방법 및 적용사례)

  • Shim, Chang-Gun;Byun, Jai-Hyun
    • IE interfaces
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    • v.11 no.2
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    • pp.191-197
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    • 1998
  • Having a reliable standard time data is very important for productivity improvement of any manufacturing company. In this study we present an estimation procedure of standard time data for companies having multi-item extremely small quantity production type and discuss a case study. Included in the discussion are the importance of setup time reduction and the roles of management supervisors, and labor.

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A Study on the Improvement of Defense Specification Suitability Review System (국방규격 적합성 검토체계 개선에 대한 고찰)

  • Kim, Sungkyung;Hur, Jangwook
    • Journal of the Korea Institute of Military Science and Technology
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    • v.19 no.5
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    • pp.662-668
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    • 2016
  • Defense specification suitability review task means to examine whether to need enactment, amendment or abolition of defense specification, and realistic and efficient review environment are urgently needed by improving system. For the promotion of efficient tasks, the cycle of defense specification suitability review needs to be changed to 5 years for active specifications and 10 years for inactive specifications. To simplify the standards of defense specification suitability review, the distinction between prior management items and general management items should be abolished and the number of review items need to be reduced from ten to three. Also, in order to promote substantial defense specification suitability review, a system improvement is needed to utilize retired professionals from defense acquisition related agencies.

A Study on the Selecting Attributes for Serviced Residences (서비스드 레지던스의 선택속성)

  • Kang, Dong-Won;Hong, Hyung-Ok;Lee, Hyun-Jung
    • Proceeding of Spring/Autumn Annual Conference of KHA
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    • 2011.04a
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    • pp.267-272
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    • 2011
  • The purpose of this study was finding selecting attributes of serviced residence and suggesting right direction of serviced residences. Research methods weresocial survey research with questionnaire and field survey. Field survey was conducted from September 20, 2010 to November 9, 2010 on 6 serviced residences. 106questionnaire survey data collected near by CBD. SPSS 18.0 program was used for Statistical analysis. Majorfinding were following; analysis methods were Frequency, $x^2$-test and ANOVA. Selecting attributes were divided into general attributes, facilities, services and individual units. First, pleasant atmosphere was the most important item amonggeneral attributes. Second, buffet restaurant was the most important items among facilities. Third, mail delivery service was the most important item among services. Fourth comfort was the most important item among individual units. In conclusion, serviced residences need more elaborate management, improvement of lobby lounge, provision of optional services and comfortable environment of individual units.

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