• Title/Summary/Keyword: Hierarchical Class

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Framework of Ship PLM System Based Upon Four-Tier Model (4-계층 모델 기반의 선박 수명주기관리 시스템 프레임워크)

  • Kim, Seung-Hyun;Lee, Jang-Hyun;Lee, Kyung-Ho;Suh, Heung-Won
    • Korean Journal of Computational Design and Engineering
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    • v.15 no.5
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    • pp.362-374
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    • 2010
  • Product Lifecycle Management (PLM) is an integrated business approach to manage the creation and distribution of product information throughout the product development process. From the product perspective, PLM encompasses a holistic approach to product development and product information management. It supports the integrated product information in conjunction with the efficient product structures and BOM (Bill Of Material), user interfaces, proper functions, design processes and enterprise integration. Therefore, PLM should not only satisfy required functions as an enterprise software but also offer a systematic method for the efficient application from the initial stage of its development. Recently, many shipyards have been considering the PLM as a strategic solution to get the efficient management of product information such as 3-D models, BOM, drawings, documents, and the other product data. Though many studies on PLM are performed, most of them are performed in a function-based approach adequate for mass productive assembly industries. It could not help having limitations on applying the proper PLM system to the shipbuilding business since the requirements of shipbuilding PLM are too diverse and huge to design the architecture. This study presents the PLM framework which effectively reflects the diverse requirements of shipbuilding PLM. In order to get the macroscopic architecture of shipbuilding PLM, authors suggest the four-tier architecture model which considers the various requirements collected from shipyards. Entities of ship design data are modeled BOM in terms of product structure and hierarchical class diagram. Applicable functions of shipbuilding PLM are also investigated by analysis of issues of ship design. Finally, by reflecting the design process of shipbuilding, To-Be ship design procedure cooperated with the suggested PLM framework has been summarized.

A Study on Factors Affecting Cultural Competency of General Hospital Nurses (종합병원 간호사의 문화적 역량수준과 영향요인)

  • Chae, Duck-Hee;Park, Yun-Hee;Kang, Kyeong-Hwa;Lee, Tae-Hwa
    • Journal of Korean Academy of Nursing Administration
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    • v.18 no.1
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    • pp.76-86
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    • 2012
  • Purpose: As Korea has been rapidly transformed to be a multicultural society, it becomes essential for nurses to develop cultural competency. The purpose of this descriptive study was to assess the cultural competency level of general hospital nurses and to examine its contributing factors adopting ecological model. Method: A convenience sample of 327 nurses from six general hospitals in Seoul metropolitan area was recruited between November 14 to 28, 2011. Cultural competency was measured using the Korean version of the Caffrey Cultural Competence in Healthcare Scale (CCCHS) and Cultural Competence Assessment(CCA). Hierarchical multiple regression analysis was performed to assess the influence of intrapersonal, cultural-experience, and organizational factors on cultural competency. Results: Mean cultural competency in this study was 2.57(${\pm}0.43$). Cultural competency was associated with job position (p=.044) at the intrapersonal level. At the cultural experience level, foreign language classes experience (p=.005), fluency in a foreign language (p=.000), experience of working with foreign health care professionals (p=.000) were associated cultural competency. At the organizational level, training program (p=.000), job description (p=.002), health education materials (p=.016), insufficient job control (p=.000), and interpersonal conflicts (p=.011) showed significant difference. Foreign language class experience, foreign language fluency, experience of working with foreign health care professionals, and job control were the most consistent predictors of cultural competence and explained 20.4% of the total variance in the proposed ecological model. Conclusions: The findings suggest that to enhance cultural competency in general hospital nurses, cultural experience and organizational factors need to be more fully considered than intrapersonal factors.

A Comparison of Traditional Living Space Based on Family System In Korea, China and Japen (${\cdot}$${\cdot}$일 가족관계에 따른 전통주거공간 비교연구)

  • Kim Do-Yeon;Oh He-Kyung
    • Journal of Families and Better Life
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    • v.23 no.3 s.75
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    • pp.169-183
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    • 2005
  • The present study purposed to identify differences and similarities in traditional residential space among Korea. China and Japan, which share similar social structure, and to make a comparative analysis on differences in traditional residential space according to family relation in the three countries. For these Purpose, this study selected residences, which are similar to one another in terns of time, class and economy and analyzed them using their floor plans and photographs. The results of this research are as follows. Knrea, China and Japan, all of which have family-centered social structure, separate their residential space from the external society and particularly women's space is placed inside men's space or in a secluded area. The most remarkable characteristic of residential space in Korea is the division of living spare between men and women. Space is allocated according to the hierarchical order of families. In this way, the position or order of family members is reflected in the use of space. Characteristically in China based on the large-family system each family is given a space for independent life. Particularly as the relation among brothers is emphasized, space is allocated equally to all brothers but the status of a space is determined by the order of the residents. Residential space in Japan is organized to emphasize the absolute authority and status of the head of the family. As the space is planned focused on the family head's daily life and guest reception, the relation among other family members is ignored. That is, Japanese residence is a social space for the family head's guest reception, Chinese residence is a family-centered space rather than a social space, and Korean residence accommodates both space for family life and social space.

The Effect of the Satisfaction with major on Career Exploration Behavior of the Students in the department of Airline Service: Focused on the comparison between 2year and 4year colleges (항공서비스 관련학과 학생들의 전공만족도가 진로탐색행동에 미치는 영향에 관한 융합 연구 : 2년제 대학과 4년제 대학의 비교를 중심으로)

  • Lee, Ju-Yang
    • Journal of the Korea Convergence Society
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    • v.8 no.4
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    • pp.207-218
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    • 2017
  • This study examines the effect of the satisfaction with major on career exploration behavior focused on the comparison between 2year and 4year colleges in a sample of 550 of college students majoring in airline service in Choong Chung province. The data was analyzed descriptive analysis, t-test, ANOVA, multiple regression analysis, hierarchical analysis. As a result, first, class/curriculum satisfaction had positive effect on self exploration while relationship satisfaction and pride major had positive effects on job exploration and self exploration. Second, the effect of satisfaction with major on career exploration behavior was different depending on school system. Accordingly it is suggested that different approaches are required in career counselling for 2year and 4year college students.

The Problem of word-for-word Translating English Thesaurus Terms into Korean (영.한 대역 시소러스의 문제점에 관한 연구)

  • Oh, Jae-Ik
    • Journal of Information Management
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    • v.28 no.3
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    • pp.46-73
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    • 1997
  • In these days, there are many studies to improve the effectiveness of retrieval systems. One method is to use thesaurus in the systems. But the establishment of the saurus independently is very difficult and requiers a great deal of time and labor. The goal of this research is to examine which problems there are. The texts used in the thesis were "Thesaurus of ERIC descriptors(7th ed.1977)" and "KEID Thesaurus(1981)" established by translation. The results of the thesis were as follows, First, there were many differences of equivalence classes of terms between English and Korean. Second, the errors of translation made words inadequate to use as a descriptors. Third, because of differences of traditions, thought and culture, associative relationship and hierarchical relation did not coincide between terns, Fourth, because the terms of the thesaurus of ERIC descriptors serve Western usages, the terms used in Korea were not or insufficient. So it way necessary to add our own therms. As mentioned above, translating a thesaurus for use as a documentation language for indexing and retrieval is not the optimum way of building up a thesaurus.

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The Effect of Online Substitution Class Caused by Coronavirus (COVID-19) on the self-directed learning, academic achievement, and online learning satisfaction of nursing students (코로나19(COVID-19)로 인한 온라인 강의대체가 간호대학생의 자기주도학습능력, 학업성취도 및 온라인 학습만족도에 미치는 영향)

  • Park, Mi-Ma;Shin, Ji-Hoon
    • Journal of the Health Care and Life Science
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    • v.9 no.1
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    • pp.77-86
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    • 2021
  • This study is a research study to determine the effect of online lecture substitution for subjects due to COVID-19 on self-directed learning ability, academic achievement, and online learning satisfaction of nursing students. From September to October 2020, the final 113 nursing students of data recovered as enrolled in the Department of Nursing at a university located in G City were analyzed. The data collected were analyzed by performing descriptive statistics and hierarchical regression analysis using the SPSS 21.0 program. The study results are summarized as follows. The average score of self-directed learning was 3.32±0.39, academic achievement 3.32±0.75, and learning satisfaction was 3.31±0.78. Factors affecting online learning satisfaction were found to be preferred learning methods and academic achievement. Based on the results of this study, it is necessary to design instruction and operate classes to improve online learning satisfaction by evaluating the learner's learning method in advance when running nursing school subjects as online lectures for nursing students.

Characteristic Community Type Classification of Forest Vegetation in South Korea (우리나라의 산림식생에 대한 군락형 분류)

  • Yun, Chung-Weon;Kim, Hye-Jin;Lee, Byung-Chun;Shin, Joon-Hwan;Yang, Hee Moon;Lim, Jong Hwan
    • Journal of Korean Society of Forest Science
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    • v.100 no.3
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    • pp.504-521
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    • 2011
  • This study was carried out phytosociological forest community analysis, the sampled dada were collected and studied by 1,456 plots from 1993 to 2009 for 17 years in the 22 mountain area of South Korea. Four opposed species groups were classified and 10 vegetation units were divided as a result of forest vegetation classification. The 10 units were closely correlated with major environmental factors such as geological features, climatic conditions, topographical configurations, and etc. Therefore the forest vegetation of South Korea could be conclusively abstracted by 10 vegetation units and 7 eco-types.

An Innovative Framework to Classify Online Platforms (온라인 플랫폼의 분류 프레임워크 : 국내 플랫폼 사례연구를 중심으로)

  • Kang, Hyoung Goo;Kang, Chang-Mo;Jeon, Seong Min
    • The Journal of Information Systems
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    • v.31 no.1
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    • pp.59-90
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    • 2022
  • Purpose This paper presents a new method of classifying online platforms. It also explains how to apply the framework using case studies and generate new insight about platform strategies and policy development. Design/methodology/approach This paper focuses on the relationship between platforms, especially the hierarchy and power relations, and broadly classifies platforms as follows: content/services, meta information, app stores, operating systems, and cloud. Both the content/service platform and the meta information platform have matching as their main function. However, most content/services tend to collect and access information through meta-information platforms, so meta-information platforms are closer to infrastructure than content/service platforms. App store, operating system, and cloud can be said to be platforms of platforms. A small number of companies in the US and China dominate platforms of platforms, and become the recent development and regulatory targets of their respective governments. Findings We should be wary of the attempts to regulate domestic platforms by importing foreign regulations that ignore the hierarchical structure that our framework highlights. We believe that Korea's strategy to become a true platform powerhouse is clear. As one of the few countries with significant companies in the area of meta information platforms, it will be necessary to fully utilize the position and advance into the strategically important area of platforms of platforms. Furthermore, it is necessary to encourage world-class companies to appear in Korea in the app store, operating system, and cloud. To do so, the government needs to introduce promotion policies to strategically nurture such platforms rather than to regulate them.

The Interaction Effects of Team Efficacy and Perceived Loafing on Learning Outcome in Team-Based Project Learning (팀 기반 프로젝트 학습에서 팀효능감과 지각된 태만이 학습성과에 미치는 영향 : 팀효능감과 지각된 태만의 상호작용효과를 중심으로)

  • Jwa, Hyun-Suk
    • Journal of Korea Entertainment Industry Association
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    • v.14 no.7
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    • pp.447-456
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    • 2020
  • The purpose of this study is to examine the effects of team efficacy and perceived loafing on learning outcome in team-based project learning. For this purpose, questionnaire survey was conducted to 58 students who enrolled the adolescent welfare class in 2019 at H University. A hierarchical regression analysis was conducted for the effects of team efficacy and perceived loafing on learning outcomes and the interaction effect between two variables. Main results of this study were as follows. Team efficacy had a positive effect on learning outcomes. Second, perceived loafing did not have a statistically significant effect on learning outcomes. Third, the interaction effect of perceived loafing and team efficacy on learning outcomes was significant. In particular, the negative effect of perceived loafing on learning outcomes was reduced by team efficacy. Based on the research results, a plan to increase the learning outcome of team-based project learning was discussed.

Analysis of the Effectiveness and Feasibility of Accident Analysis Policy for Construction Safety from the Perspective of System Safety (시스템안전 관점에서의 건설안전 사고분석 정책의 효과성 및 타당성 분석)

  • Sunjin Lee;Hunggi Lee;Dongil Shin
    • Journal of the Society of Disaster Information
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    • v.19 no.1
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    • pp.146-160
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    • 2023
  • Purpose: The construction industry is a complex mechanism in which multiple processes are carried out at the same time, and the frequency and severity of accidents account for a higher proportion than other industries, and the accident fatality rate also accounts for more than 50% of all industries. In order to reduce such accidents, the government's disaster investigation method analyzes the limitations from the system safety point of view and proposes improvement plans. Method: The main contents of the government's serious accident investigation were identified, and the effectiveness/adequacy was analyzed from the system safety point of view. Result: Disaster investigation and analysis techniques tailored to violations and compliance were limited in providing fundamental solutions, and alternatives for accident prevention were possible for each component of the system when safety constraints, controls, and hierarchical interactions were combined. Conclusion: When combining the disaster investigation and analysis method from the current accident analysis method from the perspective of system safety, it is possible to identify the problems of interaction by class and communication process, so it is possible to suggest alternatives to prevent accidents from an integrated perspective.