• 제목/요약/키워드: Task-Orientation

검색결과 184건 처리시간 0.03초

그리드 컴퓨팅을 위한 온톨로지 기반의 시맨틱 정보 시스템 (Ontology Based Semantic Information System for Grid Computing)

  • 한병전;김형래;정창성
    • 인터넷정보학회논문지
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    • 제10권4호
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    • pp.87-103
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    • 2009
  • 그리드 컴퓨팅 환경은 기존의 분산 컴퓨팅 기술의 확장된 개념으로, 다양한 분야에서 저비용의 고성능 컴퓨팅 퍼포먼스를 얻기 위하여 그리드를 이용하고 있다. 그러나 공통적으로 이용할 수 있는 정보 시스템의 부재로, 현재의 그리드는 대규모의 단일한 환경으로서의 그리드가 아닌, 기존의 클러스터 컴퓨터와 같은 의미로 사용되고 있다. 따라서 자신이 구성한 분산 컴퓨팅 환경을 그리드 환경의 한 부분으로 포함시키기 위해서는 컴퓨팅 환경에 대한 정보를 그리드의 이용자가 공유할 수 있어야 하며, 정보 서비스를 공개하여 공유할 수 있도록 해야 한다. 따라서 본 논문에서는 정보의 공유와 확장이 용이하며, 플랫폼에 독립적인 서비스를 제공할 수 있는 정보 시스템을 구축하기 위한 웹 서비스, 온톨로지 기반의 Semantic Information System Framework(WebSIS)을 제안한다. WebSIS를 통하여 온톨로지를 이용하는 정보 시스템의 제작을 용이하게 하며, 온톨로지의 공유와 재사용, 확장의 특징을 활용할 수 있는 구조를 제안한다. 또, 그리드 컴퓨팅 환경이 기존의 분산 컴퓨팅 환경에 비해 복잡해짐에 따라 작업을 수행하기 위한 적절한 자원의 할당에도 좀 더 많은 고려사항이 존재하게 되었고, 이를 효과적으로 처리하기 위해서는 좀 더 고수준의 정보처리를 필요로 하게 되었다. 이에 우리는 WebSIS와 함께 WebSIS를 이용하여 그리드 환경을 이용하는 작업의 자동화를 위한, 온톨로지 기반의 고수준의 정보처리가 가능한 Resource Information Service를 구현하였고, 이를 통하여, 효율적인 공유와 확장을 위한 온톨로지 모델을 제안한다. 또한, 기존의 용어 매칭이 아닌 의미 정보를 이용한 검색과 정보 처리를 제안한다.

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CRM 몰입과 조직문화가 CRM 성과에 미치는 영향 (The Effects of CRM Commitment and Organizational Culture on CRM Performance)

  • 박태훈;임영균
    • Asia Marketing Journal
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    • 제10권2호
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    • pp.31-69
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    • 2008
  • 1990년대 중반 이후 기업의 마케팅활동에 있어 경쟁우위를 지속하기 위한 핵심요소로 고객관계관리(CRM)의 중요성이 크게 부각되었다. 최근 들어 CRM 성과에 대한 회의론이 퍼지면서 학계에서는 어떤 경우 CRM이 소기의 성과를 성취할 수 있는가에 대한 연구가 활발히 진행되고 있다. 본 연구는 이러한 연구추세에 따라 CRM 성과가 CRM 몰입과 조직문화로 대변되는 몇 가지 조직특성에 의해 영향을 받을 수 있음을 가설로 제시하고 검증하고 있다. 본 연구는 CRM 성과를 고객성과와 업무성과로 구분하고 이들 성과에 최고경영자의 몰입, 전략적 준비성, CRM 투자, 변화에 대한 저항, 부서간 협력, 고객지향성의 여섯 가지 조직특성변수가 미치는 영향을 분석하고 있다. 123명의 국내 CRM 담당자를 대상으로 한 서베이분석 결과, 상당수의 조직특성변수가 CRM 성과 변수인 업무성과와 고객성과에 직접 혹은 간접적으로 영향을 미치는 것으로 확인되었다. CRM 투자가 많을수록 CRM 성과의 두 차원, 즉 업무성과와 고객성과가 향상되는 것으로 나타났으며 CRM 투자가 많아지기 위해서는 최고경영자의 CRM에 대한 몰입과 기업의 전략적 준비성이 필요한 것으로 나타났다. 또한 기업의 고객지향성이 높을수록 업무성과가 향상되는 것으로 나타났으며 고객지향성은 CRM 투자와 부서간 협력이 증가할수록 높아지는 것으로 나타났다. 본 연구는 업무성과의 향상에 의해 고객성과가 높아지고 있음도 확인하고 있다. '변화에 대한 저항'의 경우에는 여타 선행변수나 CRM 성과에 영향을 미치지 않는 것으로 나타났다. 본 연구는 이상의 분석결과를 토대로 국내 기업의 CRM 성과를 향상시키기 위한 전략적 시사점을 연구의 한계와 함께 제시하고 있다.

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PLS 경로모형을 이용한 IT 조직의 BSC 성공요인간의 인과관계 분석 (A PLS Path Modeling Approach on the Cause-and-Effect Relationships among BSC Critical Success Factors for IT Organizations)

  • 이정훈;신택수;임종호
    • Asia pacific journal of information systems
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    • 제17권4호
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    • pp.207-228
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    • 2007
  • Measuring Information Technology(IT) organizations' activities have been limited to mainly measure financial indicators for a long time. However, according to the multifarious functions of Information System, a number of researches have been done for the new trends on measurement methodologies that come with financial measurement as well as new measurement methods. Especially, the researches on IT Balanced Scorecard(BSC), concept from BSC measuring IT activities have been done as well in recent years. BSC provides more advantages than only integration of non-financial measures in a performance measurement system. The core of BSC rests on the cause-and-effect relationships between measures to allow prediction of value chain performance measures to allow prediction of value chain performance measures, communication, and realization of the corporate strategy and incentive controlled actions. More recently, BSC proponents have focused on the need to tie measures together into a causal chain of performance, and to test the validity of these hypothesized effects to guide the development of strategy. Kaplan and Norton[2001] argue that one of the primary benefits of the balanced scorecard is its use in gauging the success of strategy. Norreklit[2000] insist that the cause-and-effect chain is central to the balanced scorecard. The cause-and-effect chain is also central to the IT BSC. However, prior researches on relationship between information system and enterprise strategies as well as connection between various IT performance measurement indicators are not so much studied. Ittner et al.[2003] report that 77% of all surveyed companies with an implemented BSC place no or only little interest on soundly modeled cause-and-effect relationships despite of the importance of cause-and-effect chains as an integral part of BSC. This shortcoming can be explained with one theoretical and one practical reason[Blumenberg and Hinz, 2006]. From a theoretical point of view, causalities within the BSC method and their application are only vaguely described by Kaplan and Norton. From a practical consideration, modeling corporate causalities is a complex task due to tedious data acquisition and following reliability maintenance. However, cause-and effect relationships are an essential part of BSCs because they differentiate performance measurement systems like BSCs from simple key performance indicator(KPI) lists. KPI lists present an ad-hoc collection of measures to managers but do not allow for a comprehensive view on corporate performance. Instead, performance measurement system like BSCs tries to model the relationships of the underlying value chain in cause-and-effect relationships. Therefore, to overcome the deficiencies of causal modeling in IT BSC, sound and robust causal modeling approaches are required in theory as well as in practice for offering a solution. The propose of this study is to suggest critical success factors(CSFs) and KPIs for measuring performance for IT organizations and empirically validate the casual relationships between those CSFs. For this purpose, we define four perspectives of BSC for IT organizations according to Van Grembergen's study[2000] as follows. The Future Orientation perspective represents the human and technology resources needed by IT to deliver its services. The Operational Excellence perspective represents the IT processes employed to develop and deliver the applications. The User Orientation perspective represents the user evaluation of IT. The Business Contribution perspective captures the business value of the IT investments. Each of these perspectives has to be translated into corresponding metrics and measures that assess the current situations. This study suggests 12 CSFs for IT BSC based on the previous IT BSC's studies and COBIT 4.1. These CSFs consist of 51 KPIs. We defines the cause-and-effect relationships among BSC CSFs for IT Organizations as follows. The Future Orientation perspective will have positive effects on the Operational Excellence perspective. Then the Operational Excellence perspective will have positive effects on the User Orientation perspective. Finally, the User Orientation perspective will have positive effects on the Business Contribution perspective. This research tests the validity of these hypothesized casual effects and the sub-hypothesized causal relationships. For the purpose, we used the Partial Least Squares approach to Structural Equation Modeling(or PLS Path Modeling) for analyzing multiple IT BSC CSFs. The PLS path modeling has special abilities that make it more appropriate than other techniques, such as multiple regression and LISREL, when analyzing small sample sizes. Recently the use of PLS path modeling has been gaining interests and use among IS researchers in recent years because of its ability to model latent constructs under conditions of nonormality and with small to medium sample sizes(Chin et al., 2003). The empirical results of our study using PLS path modeling show that the casual effects in IT BSC significantly exist partially in our hypotheses.

관측위치오차와 시간지연오차를 보정하는 소나방위정확도 측정 장비 구현 (Implementation of Sonar Bearing Accuracy Measurement Equipment with Parallax Error and Time Delay Error Correction)

  • 김성덕;김도영;박규태;신기철
    • 융합신호처리학회논문지
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    • 제20권4호
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    • pp.245-251
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    • 2019
  • 소나방위정확도는 소나에서 예측한 표적방위와 실 표적방위와의 일치성을 나타내며 측정을 통해 구해진다. 하지만 소나방위정확도 측정 시에는 복잡하고 다양한 환경 요인이 작용하는 해상에서 이루어지는 관계로 여러 오차가 결과에 포함된다. 특히 GPS 수신장치와 소나센서 위치 차이로 발생하는 관측위치오차와 수중 음파 속도와 공기 중 전자파 속도 사이에서 발생되는 시간지연오차는 정확도에 큰 영향을 미치는 요소이다. 이런 관측위치오차와 시간지연오차를 자동화도구 없이 보정하는 것은 많은 노력이 들어가는 작업이다. 이에 본 연구에서는 관측위치오차와 시간지연오차를 보정하는 소나방위정확도 측정 장비를 제안하였다. 실험은 모의데이터와 실 해상데이터를 통해 이루어졌으며, 실험 결과 관측위치오차와 시간지연오차가 시스템적으로 보정되어 모의데이터인 경우 51.7%, 실 해상데이터인 경우 18.5% 이상 보정됨을 확인하였다. 제안한 방법을 통해 향후 소나시스템 탐지성능 검증의 효율성 및 정확성 향상을 기대한다.

간호사가 지각하는 간호조직문화와 조직몰입간의 관계 분석 (Analysis of Relationship between Nursing Organization Culture and Organizational Commitment)

  • 김대란
    • 간호행정학회지
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    • 제5권1호
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    • pp.5-21
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    • 1999
  • Nursing organization culture is common patterns of believing, thinking and behaving resulted from a variety of experiences and interaction nurses in the same setting. This study was performed based on the assumption of existence of different subcultures within meta-culture, to identify the differences of subculture among 5 nursing units and to analyze the relationship between nursing organization culture and organizational commitment In this study, two kinds of instruments were used. One was the instrument of nursing organization culture developed by researcher through literature review and interview with nurses. The other one was Mowday's Organizational Commitment Questionnaire to measure organizational commitment of nurses. Both of them were structured with 5 scale. The answers were analyzed using SPSS program. The results were as follows : The meta-culture of the nursing organization culture was the people stable culture. There were significant differences in people development culture and people stable culture among 5 nursing units and all 5 units had different culture score. Especially, emergency room had strong development culture, and stable culture was dominant in operating room. Other units except emergency room and operating room had high scores in people stable culture than other culture types, but revealed different distribution. There were significant differences of the nursing organizational culture types -people development, task development, people stable, task stable-among 5 units. Four types of nursing organizational culture consisted of competing values in one organization. Nurses's organizational commitments were sign ificantly different among the units. The score per ceived by nurses who work in emergency room, operating room and leu was higher commitment score than that of medical/surgical nursing units Nurse's commitment to nursing organization was also related to total work period as nurse in any setting and work period in this hospital. Organizational commitment was significantly different among the nursing culture types, indicating that the scores of developmental culture were higher than stable culture. In conclusion, there were many different subcultures in nursing organization. In subculture, the organizational commitment was different. Therefore, the change of nursing organization culture or nursing unit culture needs to be considered to hire, give orientation, teach. and reallocate nurses efficiently. Research on nursing organization culture using both qualitative and quantitative method needs to be further considered. Furthermore, the strategy in nursing organization culture for nursing administrator to manage human resources efficiently and to change nursing unit effectively, needs to be developed.

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Efficacy Evaluation of Anti-wrinkle Products in Japan

  • Masaki Hitoshi
    • 대한화장품학회지
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    • 제29권2호
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    • pp.67-77
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    • 2003
  • Two categories of cosmetic products, cosmetics and quasi-drugs, have been established by the Ministry of Health, Labor and Welfare (MHLW) in Japan. Japanese pharmaceutical law has defined that products categorized as cosmetics do not exhibit any effects on human skin. In fact, cosmetic products are not permitted to claim any efficacy. On the other hand, products in the quasi-drug category can claim several efficacies such as anti-inflammatory effects, whitening/lightning effects, hair growth effects and so on. Unfortunately, the Japanese MHLW has not yet approved the efficacy of anti-aging/anti-wrinkle effects as a claim point. However, the population is aging, and the demand for anti-aging/anti-wrinkle products is increasing year by year. Japanese cosmetic companies have proposed to the MHLW that anti-aging/anti-wrinkle agents be approved as a claim concept of a quasi-drug. However, unified evaluation methods for anti-aging/anti-wrinkle effects have not been established. Currently, each company evaluates the efficacy of products/materials using their own original methods. Thus, to request approval of the MHLW, the establishment of a unified evaluation method is needed. Consequently, the Japan Cosmetic Industry Association (JCIA) has established a task force to develop guidelines for evaluating anti-wrinkle effects in 1998. In conclusion, the JCIA would like to adopt visual and image analysis scales to evaluate the anti-wrinkle effects objectively. Generally, wrinkles are roughly classified into three groups as fine wrinkles, linear deep wrinkles and crow's feet. However, academic societies of dermatology or cosmetics have not yet established a definition of wrinkles in Japan. Thus, in advance of setting up an evaluation method, the definition of wrinkles f3r evaluation must be decided. Wrinkles are defined by the task force of the JCIA as follows; furrows that people can recognize visually and that appear on the forehead, the corners of the eyes and the backs of the neck with aging. In addition, furrows are emphasized by exposure to solar light and by dry conditions. Visual evaluation is the most sensitive method and can be applied to most types of wrinkles. However, visual evaluation is hard to express digitally as results. Besides, in the case of image analysis, comparisons of data obtained from distinct examinations can not be done, because data from image analysis are relative values. Thus, to enhance the reliability of the evaluations, the adoption of an objective scale was required. The principle of the evaluation method is to analyze images taken from silicone replicas of wrinkle areas using several parameters, such as the proportion of the wrinkle $area({\%})$, the mean depth of the wrinkles (mm), the mean depth of the deepest wrinkle (m) and the deepest point on the deepest wrinkle. Lights are shown on the skin replica from an orthogonal direction of the main orientation of the wrinkle, and the resulting shadow images are quantified by the image analysis method. To increase the precision of the data or to allow comparisons of independent examinations, a scale with furrows of several depths, 200, 400, 600, 800, and $1000{\mu}m$, is adapted in the evaluation system. I will explain the guidelines established by the JCIA in the presentation.

A Development of Home Mess-Cleanup Robot with Entertainment Function

  • Kim, Seung-Woo;Cha, Hyun-Koo
    • 제어로봇시스템학회:학술대회논문집
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    • 제어로봇시스템학회 2004년도 ICCAS
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    • pp.1444-1447
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    • 2004
  • The vacuum-cleaner had made the burden of house chore lighten but the operation labour of a vacuum-cleaner had been so severe. Recently, the cleaning robot was producted to perfectly solve the cleaning labour of a house but it also was not successful because it still had a problem of mess-cleaning, which is the clean-up of big trash and the arrangement of newspapers, clothes, etc. The cleaning robot is to just vacuum dust and small trash and has no function to arrange and take away before the automatic vacuum-cleaning. For this reason, the market for the cleaning robot is not yet built up. So, we need a design method and technological algorithm of new automatic machine to solve the problem of mess-cleanup in house. In this paper, a Home Mess-Cleanup Robot(HMR), which has a practical function of the automatic mess-cleanup, is developed. It need functions of agile automatic navigation, novel manipulation system for mess-cleanup. The automatic navigation system has to be controlled for the full scanning of living room, to recognize the absolute position and orientation of the self, the precise tracking of the desired path, and to distinguish the mess object to clean-up from obstacle object to just avoid. The manipulation system, which is not needed in the vacuum-cleaning robot, must have the functions, how to distinguish big trash to clean from mess objects to arrange, how to grasp in according to the form of mess objects, how to move to the destination in according to mess objects and arrange them. Then, it should be an intelligent system so that the mess cleaning task can be autonomously performed in a wide variety of situations and environments. It need to also has the entertainment functions for the good communication between the human and HMR. Therefore, the Home Mess-cleanup Robot with Entertainmental Human Interface is developed in this paper. Finally, the good performance of the designed machine, HMR'4, is confirmed through the results of the mess clean-up and arrangement.

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표준화 환자를 활용한 간호시뮬레이션 시 학생의 의사소통 (Communication of Students in Nursing Simulation using Standard Patient)

  • 손해경;김동희
    • 디지털융복합연구
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    • 제16권5호
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    • pp.267-276
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    • 2018
  • 학생의 의사소통을 위한 간호 교과과정 내 표준화된 지침이 요구된다. 이에, 표준화 환자를 활용한 간호시뮬레이션 시 학생의 의사소통의 양태를 분석하였다. 2017년 3월부터 6월까지 간호학생 41명의 장염 환아 간호시뮬레이션을 녹화하고 질문지로 자료수집을 하였다. 이는 훈련된 연구원이 필사하고 의사소통 과정 분석에 근거해 내용, 빈도 분석한 결과, 학생은 간호사로서 중립적인 정보 교환을 위한 의사소통을 주로 사용하였고 자기노출(소개), 개방적 질문, 확인, 정보제공, 의견제시, 조언, 눈맞춤 등을 사용하였다. 간호 대상자가 불만을 제기하는 등의 불편한 상황에서 학생은 긴장하거나 경직되었으며 공감적 이해, 치료적 스킨십과 같은 높은 수준의 의사소통은 제한적으로 사용하였다. 이를 바탕으로 간호 전문성과 간호 서비스의 질적 향상을 위한 치료적 의사소통과 관련된 교육 전략의 필요성을 제언한다.

감각형 증강현실 기반 상호작용 대안들의 비교 (Comparison of User Interaction Alternatives in a Tangible Augmented Reality Environment)

  • 박상진;정호균;박형준
    • 한국CDE학회논문집
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    • 제17권6호
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    • pp.417-425
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    • 2012
  • In recent years, great attention has been paid to using simple physical objects as tangible objects to improve user interaction in augmented reality (AR) environments. In this paper, we address AR-based user interaction using tangible objects, which has been used as a key component for virtual design evaluation of engineered products including digital handheld products. We herein consider the use of two types (product-type and pointer-type) of tangible objects. The user creates input events by touching specified parts of the product-type object with the pointer-type object, and the virtual product reacts to the events by rendering its visual and auditory contents on the output devices. The product-type object is used to reflect the geometric shape of a product of interest and to determine its position and orientation in the AR environment. The pointer-type object is used to recognize the reference position of the pointer (or finger) in the same environment. The rapid prototype of the product is employed as a good alternative to the product-type object, but various alternatives to the pointer-type object can be considered according to fabrication process and touching mechanism. In this paper, we present four alternatives to the pointer-type object and investigate their strong and weak points by performing experimental comparison of their various aspects including interaction accuracy, task performance, and qualitative user experience.

과학 포트폴리오 체제의 적용이 초등학생의 사회심리학적 교실 환경에 미치는 효과 (The Effects of a Portfolio System on Elementary School Students' Socio-psychological Classroom Environment)

  • 조선형;김찬종;김범기;김철영;김혜정
    • 한국과학교육학회지
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    • 제21권3호
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    • pp.529-536
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    • 2001
  • The purpose of the research is to investigate the effects of a portfolio system on students' socio-psychological classroom environments in elementary science class. Two schools were selected from a metropolitan area, a city, and one school from a rural area in central Korea. Two fifth-grade classes were sampled from each school selected, and one class is assigned to experimental group and the other to control group, respectively. The total number of participants of the study is 399. Portfolio system was administered to experimental group, and conventional teaching to control group for two and half month. WIHIC, an inventory to measure socio-psychological classroom environment, was administered as a pre- and post-test. Experimental group gained statistically higher scores on WIHIC after administering portfolio system. They showed more positive perceptions on sub-areas of WIHIC such as teacher support, task orientation, and equity. There is interaction between region and group: the effects of the portfolio system is highest in rural area, lowest in metropolitan area, and the city in between. Portfolio system have positive effects on students' socio-psychological classroom environments. Enhanced socio-psychological classroom environments is expected to contribute to positive self-concept, higher science achievements, and self-directed learning.

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