• 산업융합연구
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• 제6권2호
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• pp.93-108
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• 2008

The central contribution of this paper is a model that integrates and extends two established frameworks in the management literature to propose a theoretical link between two previously disconnected constructs: transformational and transactional leadership and organizational learning.

• International Journal of Advanced Culture Technology
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• 제11권4호
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• pp.193-201
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• 2023

With the end of global COVID-19 epidemic, hospital staff are likely to be "physically and mentally exhausted" after three years of grueling work in the fight against the epidemic. At this point, it is especially important to enable them to continue to maintain their previous proactive work behavior. This study focuses on 400 employees of various types in three-A grade hospitals in Zhanjiang, Guangdong Province, through the proactive motivation model. Statistical software SPSS 25.0 and AOMS 22.0 were used to analyze the survey data to test whether role modeling in hospital management can have an impact on employees' proactive behaviors, in addition to verifying the mediating role of transactional psychological contract. The results of this study show that: First, role modeling of hospital leaders has a positive effect on employees' proactive behavior and a negative effect on their transactional psychological contract; Second, transactional psychological contract has a negative effect on employees' proactive behavior; Third, the transactional psychological contract mediates the effect between role modeling of leaders and employees' proactive behavior. The results of this research add to the F-path of proactive motivation model, and provide enlightenments and implications for hospital management.

• 간호행정학회지
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• 제8권2호
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• pp.335-346
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• 2002

Purpose: This study is to analyze the relationship between leadership, empowerment, organizational commitment, and nursing performance. Method: The method of the study is the establishment of the analytical framework of the theoretical model and the hypotheses for the empirical survey, analysis of the data collected by the empirical survey, and the provision of a revised model explaining more clearly the causal relationship between variables. Result: Transformational leadership has greater influence on empowerment and nursing performance than transactional leadership. Self determination and impact of empowerment factors greatly influence on organizational commitment, competence and impact significantly influence on nursing performance, and organizational commitment is closely related to the general nursing affair, the human relationship, and the job as an organizational member. Transactional and transformational leadership, in provision of the revised model by verification of goodness-of-fit of the hypothetical model, affects all parts of nursing performance by intervening competence and self determination of empowerment factors. Especially, transactional leadership directly influences on nursing performance without intervening the empowerment factor. Conclusion: The conclusion of the study is transformational leadership exerts a more positive influence on empowerment, organizational commitment, and nursing performance than transactional leadership.

• 한국안전학회지
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• 제33권6호
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• pp.66-76
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• 2018

This study examined the influence of safety leadership on safety behavior, safety climate and accident using meta analysis. Specifically, safety leadership model which incorporated both transformational and active transactional leadership styles was tested using meta analysis. The results showed that both transformational and active transactional leadership had a positive relationship with safety compliance and participation behavior, and organizational safety climate. However, both leadership styles had a negative relationship with accident. In addition, transformational leadership had significant greater effects on safety behaviors and accident than transactional leadership. In contrast, although there were no significant differences, transactional leadership has a greater effect on the safety climate. These findings suggest that active transactional leadership is important in establishing perceived safety climate of employees, whereas transformational leadership is more related with improving employees' safety behaviors. Therefore, in line with the previous studies of safety leadership, a combination of both transformational and transactional styles will be most beneficial for developing organizational safety management program. Based on these results, practical implications and further research in terms of development for safety leadership program are discussed.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제5권7호
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• pp.1252-1273
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• 2011

In Web Service Composition (WSC) area, services selection aims at selecting an appropriate candidate from a set of functionally-equivalent services to execute the function of each task in an abstract WSC according to their different QoS values. In despite of many related works, few of previous studies consider transactional constraints in QoS-aware WSC, which guarantee reliable execution of Composite Web Service (CWS) that is composed by a number of unpredictable web services. In this paper, we propose a novel global selection-optimal approach in WSC by considering both transactional constraints and end-to-end QoS constraints. With this approach, we firstly identify building rules and the reduction method to build layer-based Directed Acyclic Graph (DAG) model which can model transactional relationships among candidate services. As such, the problem of solving global optimal QoS utility with transactional constraints in WSC can be regarded as a problem of solving single-source shortest path in DAG. After that, we present Graph-building algorithms and an optimal selection algorithm to explain the specific execution procedures. Finally, comprehensive experiments are conducted based on a real-world web service QoS dataset. The experimental results show that our approach has better performance over other competing selection approaches on success ratio and efficiency.

• 디지털산업정보학회논문지
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• 제8권2호
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• pp.229-244
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• 2012

The purpose of this study is to highlight the effects of the two leadership styles, namely: transformational leadership and transactional leadership, on the different types of followership through analyzing their impact in the productivity and competitiveness of human resources in IT SMEs. The paper focuses on determining whether transformational leadership or transactional leadership is more effective as shown by the levels of empowerment derived from these two types of leadership under study. From this study, alien, role model and passive types of followership, transformational leadership appears to be more influential for personal empowerment. As for group level of empowerment, the transformational type of leadership shows higher effectiveness in alien, role model, passive, and practical types of followership. On the other hand, transactional leadership yields positive impact on practical and conformist types of followership. In summary, personal empowerment plays a direct impact on group empowerment. Thus, with the exception of conformist type of followership, transformational leadership has more impact in human resources of IT SMEs.

• 한국콘텐츠학회논문지
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• 제18권6호
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• pp.600-607
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• 2018

본 연구는 조직의 리더가 발휘하는 리더십 유형이 구성원의 조직몰입에 미치는 영향을 실증적으로 파악하여 실천적인 시사점의 제시를 목적으로 하였다. 본 연구에서는 지각된 리더십 유형이 조직몰입에 미치는 영향을 탐색하기 위하여 리더십의 유형을 구분하고 조직몰입의 개별 영역과의 관계를 분석하였다. 실증분석 결과 변혁적 거래적 리더십은 조직몰입에 정(+)의 영향을 미친다는 가정이 일부 채택되었다. 변혁적 거래적 리더십은 정서적 규범적 조직몰입에 유의한 영향을 미치는 것으로 나타났으나 지속적 몰입에는 유의한 영향을 미치지 않았다. 본 연구에서는 지속적 몰입을 이끌어 내기 위해서 리더십의 발휘와는 별개 차원의 선행변수가 고려되어야 한다는 시사점을 제시하였다. 특히 지속적 몰입과 관련된 본 연구의 결과는 기업의 성과와 구성원의 조직몰입에 대한 현실을 반영하였다는 점에서 실질적인 의미를 갖는다.

• 전자공학회논문지CI
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• 제48권1호
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• pp.72-79
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• 2011

다중 코어 프로세서의 보급과 더불어 이를 효율적으로 활용하기 위한 병렬 프로그래밍의 중요성은 나날이 강조되고 있다. 트랜잭셔널 메모리는 병렬 프로그래밍의 핵심적인 요소인 동기화(Synchronization)를 위해 제안된 구조로서 lock을 사용한 동기화로 인해 발생하는 병렬성 저하, deadlock 등의 문제를 극복할 수 있다. 본 논문은 높은 수준의 contention 상황에 따른 효율적인 트랜잭셔널 메모리의 구조에 대한 이론적인 분석을 제시하며 시뮬레이션을 통해 분석의 타당성을 확인한다. 시뮬레이션 환경은 하드웨어 트랜잭셔널 메모리 (Hardware Transactional Memory) 시스템으로 구성되었으며 이론의 검증을 위해 STAMP 벤치마크와 높은 contention을 유발하는 프로그램을 시뮬레이션 하였다. 또한 트랜잭셔널 메모리를 적용한 dining philosopher problem의 모델링을 통해 효율적인 자원 할당 방안에 있어 lazy 데이터 관리 정책이 유리함을 보였다.

• International Journal of Computer Science & Network Security
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• 제23권7호
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• pp.91-100
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• 2023

Pervasive computing is characterized by a key characteristic that affects the operating environment of services and users. It places more emphasis on dynamic environments where available resources continuously vary without prior knowledge of their availability, while in static environments the services provided to users are determined in advance. At the same time, Cloud computing paradigm introduced flexibility of use according to the user's profile and needs. In this paper, we aimed to provide Context-Aware Transactional Service applications with solutions so that it can be integrated and invoked like any service in the digital ecosystem. Being able to compose is not enough, each service and application must be able to offer a well-defined behavior. This behavior must be controlled to meet the dynamicity and adaptability necessary for the new user's requirements. The motivation in this paper is to offer design patterns that will provide a maximum of automatism in order to guarantee short reaction times and minimal human intervention. Our proposal includes a cloud service model by developing a PaaS service that allows CATS adaptation. A new specification for the validation of CATS model has been also introduced using the ACTA formalism.

• 한국콘텐츠학회논문지
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• 제14권9호
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• pp.450-462
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• 2014

이 연구는 축구선수들이 지각하는 변혁적 리더십과 정서지능, 선수만족의 인과적 관계를 규명하는데 그 목적이 있었다. 연구대상으로는 고등학교, 대학교, 실업 축구선수 495명이었고, 그들은 유층집락무선표본추출법에 추출되었으며, 직접배포와 수거법에 의해 3종류의 설문지(변혁적 리더십, 정서지능, 선수만족)에 응답하였다. 결과분석은 변인간의 인과적 관계를 규명하기 위하여 구조방정식모형이 적용되었다. 도출된 결과로는 변혁적 리더십은 정서지능에 직접적인 영향을 미치며, 변혁적 리더십은 선수만족에 직접적 영향을 미치는 것으로 나타났으며, 정서지능 또한 선수만족에 직접적인 영향을 미치는 것으로 나타났다. 더불어 정서 지능은 변혁적 리더십과 선수만족의 매개적 역할을 하는 것으로 밝혀졌다. 결론적으로 축구지도자들의 정서지능과 리더십 함양은 선수만족과 직결된다는 인식의 필요성을 강조하였으며, 정서지능과 변혁적 리더십 함양을 위한 교육프로그램 개발의 필요성을 제언하였다.