• 한국어교육
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• 제25권1호
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• pp.115-144
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• 2014

The purpose of this paper is to compare the two different instruction methods for Korean learners of academic purposes in learning request expression. Participants were divided into two groups, explicit and implicit group. Both groups viewed several scenes from the drama that involved native speakers interacting in different situations. The instructional treatment for the explicit group included metapragmatic information while the treatment for the implicit group did not. On the other hand, the treatment for the implicit group followed implicit techniques, which were repetition of the video presentation and a script reading activity. This study was made up of a pre-test, a post-test, and a delayed-test. The pre-test was conducted prior to the instructional treatment. The post-test was administered a day after the last instruction and the delayed-test was conducted five weeks after the treatments. Two types of tests, speaking and writing, were used in this study to examine subjects' knowledge of Korean request. The result of this research reveals that implicit treatment was more effective than explicit treatment in Korean learners' request acquisition. This results might have been due to the operationalization of the implicit condition in this study. Implicit instruction may help language learners make rules by themselves through tasks.

• The Journal of Asian Finance, Economics and Business
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• 제8권2호
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• pp.1157-1168
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• 2021

Hotels drive the growth and development of tourism. Despite their important role, many hotels are small and medium-sized firms (SME) that are struggling to survive against fierce competition. Experts agree that strategic planning is vital for SME survival, but it is not wholly applicable for SME managers. Meanwhile, Mintzberg's concept of crafting strategy offers a more productive insight into SME strategic planning, but its abstract nature has historically discouraged empirical research on its practical benefits. This study will be the first to empirically explore the operationalization of Mintzberg's crafting strategy characteristics, and analyze its influence on organizational learning using structural equation model. Using a sample of 50 hotels in Bali, Indonesia, this study reveals that managing pattern and stability, detecting discontinuity, and knowing the business have a positive but weak effect, whereas reconciling change and continuity proves to have a positive and significantly strong effect on organizational learning. This study has bridged the gap between the abstract concepts of crafting strategy, which is a potentially better approach for SMEs, with daily operational practices. This study also proves that Mintzberg's approach can be used to predict organizational learning. This relationship is crucial since previous studies concluded that organizational learning improves company performance.

• Journal of Information Processing Systems
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• 제18권5호
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• pp.637-649
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• 2022

Investors aim to increase their profitability by investing in the stock market. An adroit strategy for minimizing related risk lies through diversifying portfolio operationalization. In this paper, we propose a six-step stocks portfolio selection model. This model is based on data mining clustering techniques that reflect the ensuing impact of the political, economic, legal, and corporate governance in Mongolia. As a dataset, we have selected stock exchange trading price, financial statements, and operational reports of top-20 highly capitalized stocks that were traded at the Mongolian Stock Exchange from 2013 to 2017. In order to cluster the stock returns and risks, we have used k-means clustering techniques. We have combined both k-means clustering with Markowitz's portfolio theory to create an optimal and efficient portfolio. We constructed an efficient frontier, creating 15 portfolios, and computed the weight of stocks in each portfolio. From these portfolio options, the investor is given a choice to choose any one option.

• 한국정보시스템학회지:정보시스템연구
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• 제15권3호
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• pp.1-34
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• 2006

The purpose of this study Is to develop empirically validated instrument for business model. The previous researches related to business model were almost taxonomies. And the focus of those researches were the classification by the degree of integration and innovation the origin, and the main source of revenue etc. In the emerging fields such as IT, e-commerce, and e-business, it tends to overlook methodological issue in its substantive relationships and also measurement. Business model is taken an interest in recent years. However, as the non-establishment of construct on business model has made no empirical study, this, study tries to develop an empirical validated instrument that identifies the dimensions of business model by uncovering meaningful group or categories. For this, the outlined domain of business model are defined as an organizational level that competes in the industry through the literature reviews. And the traits such as process integration, value chain reconstruction, strategic alliance with another business model, specialty in a certain wet sustainability of essential capabilities, differentiation, convertibility, customer orientation, revenue stream, newness, innovation leadership: and vision sharing are identified in those respective domains, and then the traits are classified into five dimensions such as interlinkageableness, valueness, functionalness, preemptiveness, and goalness by their characteristics. Generating items are continued on the basis of operationalization. Confirmatory factor analysis is performed in order to develop validated instrument with LISREL measurement model. Finally the instrument is developed through the previous procedure. The implication of this study is the first empirical effort to assess business model. The resulting instrument can be used with dependent variables in the future study related to business model. And the establishment of construct of business model is able to make a basis to rise an additional issue consequently. In the practical side, the instrument also can be employed as an assessment framework that can assess whether the expected value success or not. The instrument with the measurement can be used on competitor's business model, In. When an investment into a i-m with a specific business model, these instrument developed can be presented as the basic framework of assessment.

• 한국수학교육학회지시리즈A:수학교육
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• 제58권4호
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• pp.483-505
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• 2019

세계적으로 계산적 사고를 학교 교육과정에 통합하려는 움직임이 일고 있고, 수학교과는 이러한 움직임의 핵심이 되고 있다. 본 연구에서는 Jeannette Wing의 주장과 선행연구를 바탕으로 계산적 사고와 수학적 사고 간의 관계를 분석하였고 계산적 사고를 수학교과에 통합한 국내외 연구를 종합적으로 검토하였다.

• 한국산업정보학회논문지
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• 제16권3호
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• pp.11-21
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• 2011

인지 과학의 주제가 되는 인간의 정신과 행동 양식을 컴퓨터 시스템으로 구현하려는 연구는 인공지능 분야에서 관심이 높다. 본 논문은 이간의 인지과정을 처리하기 위한 지능형 시스템 설계 방법론을 제안한다. 연구는 도시공학 분야에 응용되었고, 심리학 이론인 개인 컨스트릭트 이론에 수리적인 퍼지 관계 이론을 적용하여 도시 주민이 갖고 있는 인지 지식의 획득과 표현 방법을 구현한다. 연구목표는 도시 환경과 상호 작용을 하고 있는 도시 주민의 심리학적 인식을 정형화하고 이를 분석함으로 그들의 의견과 경험을 반영하여, 다양한 도시 문제 해결에 기여하는 자문 시스템 개발에 초점을 두고 있다. 방법론적으로 인간의 인지 지식 구현에 해당하는 인지 구조를 도출하고, 인지 구조를 통해 도시 주민의 사고와 인식 작용을 해석하고 분석한다. 제안하는 퍼지 관계론적 기법은 기존의 통계적인 방법과 달리 논리에 기반하여 인간의 심리 시스템을 구조화하고 파악하는 새로운 접근 방법이다.

• 기술혁신연구
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• 제21권2호
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• pp.255-283
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• 2013

기술혁신지향성의 개념이 이론적으로나 실무적으로 중요한 가치를 지니고 있음에도 불구하고, 기존의 연구에서는 기술혁신지향성에 관한 개념이 제대로 정립되어있지 않고 또한 이에 대한 적합한 변수측정이 이루어지지 않고 있다. 그러한 기술혁신지향성에 대한 기존 연구의 결함을 인지하여, 본 연구에서는 기술혁신지향성의 개념을 정립하고 그 정립된 개념을 적합하게 포착하는 새로운 측정도구를 제시하였다. 보다 구체적으로, 본 연구에서는 기술혁신지향성을 기술선도 지향성(proclivity to technological leadership)과 기술혁신 개방성(openness to technological innovation)의 두 요인으로 구성된 것으로 개념화하고 그 두 요인으로 구성된 기술혁신지향성의 개념을 변수조작화하기 위한 새로운 측정도구를 제시하였다. 본 연구에서는 새로이 제시된 기술혁신지향성의 측정도구의 신뢰성과 타당성을 검증하였고 또한 그러한 기술혁신지향성의 측정치를 기반으로 기술혁신지향성과 기업성과 사이의 관계를 실증 분석하였다. 97개의 국내 IT중소기업을 대상으로 분석한 결과, 제안된 기술혁신 지향성의 측정도구는 높은 신뢰성과 타당성을 갖는 것으로 나타났다. 또한 분석 결과 기술혁신지향성이 기업의 기술혁신성과와 긍정적인 관계를 갖고 기술혁신성과가 기술혁신지향성과 재무성과 사이의 관계를 매개하는 역할을 하는 것으로 나타났다.

• 문화기술의 융합
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• 제6권4호
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• pp.535-543
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• 2020

통계청은 사망외인에 대한 안전통계 프레임워크를 구성하는 안전변수와 하위모듈의 설정미스로 인해 통계 항목군의 도출에 착오를 일으켰고, 재난·사고 분야·영역의 학술적 분류체계를 고려하지 않고 의학적 발생기전으로 명명함으로써 통계 타당성이 떨어지는 결과가 도래된 것으로 분석되었다. 따라서 본 연구에서는 안전변수를 WHO 안전정의에 맞게 변경하고 하위모듈을 적절하게 설정하여 낙상사고, 익사·익수사고 및 무생물성 기계적 힘에 노출사고 항목군을 산업현장에서의 사고와 일상생활에서의 작업 중 사고로 분리하여 명명하고, 유독성물질을 화학적 물질과 약물로 분리하여 항목군을 재명명하는 과정과 재난사고의 6대 분야 및 영역별로 항목군을 재배치하여 최적의 안전통계 항목군 분류체계를 정립하였다. 결과적으로 사망외인의 원천 특성에 따라 재난·사고 분야를 도출하고 관련 영역을 학술적으로 설정하여 복잡하게 구성되어 있는 통계청의 사망외인 항목군을 체계적으로 재정립함으로써 통계타당성을 향상시키고 정부부처 및 관련기관의 안전투자의 방향을 결정하는데 중요한 역할을 할 것으로 기대된다.

• 직업교육연구
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• 제33권3호
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• pp.127-143
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• 2014

일터몰입은 조직 구성원의 태도나 성과와의 상관관계를 알아보는 데에 많이 연구되어져 왔다. 그러나 상대적으로 일터에서의 여러 가지 형태의 몰입간 관계성에 대한 연구는 적은 편이라 할 수 있다. 개별 몰입의 설명력보다 서로 다른 몰입이 결합된 모형이 조직 구성원의 행동에 대해 더 많이 설명해 줄 수 있다는 연구결과(Cohen 2003)에서 알 수 있듯이, 일터에서 의미 있는 몰입대상 중 팀에 대한 몰입의 중요성을 밝히고자, 몰입의 개념에 대해 살펴보고, 여러 형태의 몰입간 관계에 대해 검토를 하는 것은 의미있는 일이라 할 수 있다. 몰입간 상호관계 모형에 대해 검토하기 전 다면적 구성을 지니고 있는 몰입의 특성을 고려하여 몰입의 개념에 대해 정리하는 것으로 연구를 시작하였다. 그 후, 다중 몰입간 관계성에 대해 연구한 Randall and Cote(1991), Morrow(1993), Cohen(2000)의 연구를 비교 검토하였다. 그 결과, 몰입에 대한 불분명한 조작적 정의와 그에 따른 분석 결과에 대한 추론은 일터에서의 팀에 대한 몰입의 중요성을 간과케 할 수 있으며, 단순화하여 바라볼 수 있게 한다는 것을 알 수 있었다.

• Asia pacific journal of information systems
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• 제18권3호
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• pp.147-165
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• 2008

IT education can be summarized as persuading the educatee to accept IT. The persuasion is made by delivering the messages for how-to-use and where-to-use to the educatee, which leads formulation of a belief structure for using IT. Therefore, message based persuasion theory, as well as IT acceptance theories such as technology acceptance model(TAM), would play a very important role for explaining IT education. According to elaboration likelihood model(ELM) that has been considered as one of the most influential persuasion theories, people change attitude or perception by two routes, central route and peripheral route. In central route, people would think critically about issue-related arguments in an informational message. In peripheral route, subjects rely on cues regarding the target behavior with less cognitive efforts. Moreover, such persuasion process is not a one-shot program but continuous repetition with feedbacks, which leads to changing a belief structure for using IT. An educatee would get more knowledge and experiences of using IT as following an education program, and be more dependent on a central route than a peripheral route. Such change would reformulate a belief structure which is different from the intial one. The objectives of this study are the following two: First, an identification of the relationship between ELM and belief structures for using IT. Especially, we analyze the effects of message interpretation through both of central and peripheral routes on perceived usefulness which is an important explaining variable in TAM and perceived use control which have perceived ease of use and perceived controllability as sub-dimensions. Second, a longitudinal analysis of the above effects. In other words, change of the relationship between interpretation of message delivered by IT education and beliefs of IT using is analyzed longitudinally. For achievement of our objectives, we suggest a research model, which is constructed as three-layered. While first layer has a dependent variable, use intention, second one has perceived usefulness and perceived use control that has two sub-concepts, perceived ease of use and perceived controllability. Finally, third one is related with two routes in ELM, source credibility and argument quality which are operationalization of peripheral route and central route respectively. By these variables, we suggest five hypotheses. In addition to relationship among variables, we suggest two additional hypotheses, moderation effects of time in the relationships between perceived usefulness and two routes. That is, source credibility's influence on perceived usefulness is decreased as time flows, and argument quality's influence is increased. For validation of it, our research model is tested empirically. With measurements which have been validated in the other studies, we survey students in an Excel class two times for longitudinal analysis. Data Analysis is done by partial least square(PLS), which is known as an appropriate approach for multi-group comparison analysis with a small sized sample as like this study. In result. all hypotheses are statistically supported. One of theoretical contributions in this study is an analysis of IT education based on ELM and TAM which are considered as important theories in psychology and IS theories respectively. A longitudinal analysis by comparison between two surveys based on PLS is also considered as a methodological contribution. In practice, finding the importance of peripheral route in early stage of IT education should be notable.