• Proceedings of the KIEE Conference
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• 2000.11a
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• pp.61-63
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• 2000

As increasing the failure of distribution transformers, we need to manage them efficiently. This paper proposes the method for distribution transformer's management using loss-of-life calculation. The Data Acquisition System(DAS) was developed to manage transformers and the HDLC protocol applied to the system. It will be feasible application to diagnose distribution transformers by checking load conditions such as top oil temperature, ambient temperature, load current, etc. and using loss-of-life calculation.

• Journal of the Ergonomics Society of Korea
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• v.35 no.5
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• pp.403-411
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• 2016

Objective: This study is concerned with the user interface (UI) design of touch screen based on the reaction time of Automated Teller Machine (ATM) user. Background: Adopting the touch screen technology, the ATM service has recently established a new user interface different from the existing button-type interface. Method: Experiments were conducted by simulating ATM touch screen layouts, and layouts were focused on location of menu buttons (left and right, top and bottom), number of menu buttons (8 and 12 buttons). Results: The results show that there are significant differences in correction ratio and reaction time by user groups, types of menu location, and the number of buttons. Conclusion and Applications: The results of this study can be used to provide baseline information for the interface design of ATM touch screen and the age differences in reaction time.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 1994.04a
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• pp.527-534
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• 1994

This paper presents a Bin-Picking method in which robot recognizes the positions and orientations of unoccluded objects at the top of jumbled objects placed in a bin, and picks up the unoccluded objects one by one from the jumble. A method using feasible region, painting, and hierarchical test is introduced for recognizing the unoccluded objects from the jumbled objects. The 3D information is obtained using the bipartite-matching method which finds the least difference of 3D by comparing vertexes of one camera with vertexes of the other camera, then hypothesis and test are done. The working order of unoccluded objects is made based on 3D, position, and orientation information. The robot picks up the unoccluded objects from the jumbled objects according to the working order. This all process continues to the empty bin.

• Asia pacific journal of information systems
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• v.5 no.2
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• pp.259-288
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• 1995

Using end-user attitude as intervening variable, this paper proposes a causal model of how environmental factors of EUC influence end-user computing (EUC) success, measured by the degree of IS use. This study identifies unique aspects of the EUC environment and generates key dimensions of end-user attitude appropriate for this context : perceived information quality, perceived design quality, and perceived usefulness. The research model includes six environmental factors - top management support, end-user education, task variability, task analyzability, end-user's computing ability, and end-user involvement. A field study was undertaken to test the hypothesized relationships among the research variables. The results generally support the assumption that end-user attitude intervene the impact of environmental factors on IS use. The implications of the findings are discussed.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.160-165
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• 2004

최근 각 기업에는 6시그마, PI등 여러 가지 혁신 활동이 차별화 되지 않고 도입되는 경향이 있으며, 기업 내부에서도 바람직한 혁신활동 연계방안에 대해서 많은 고민을 하고 있는 실 정 임. 따라서 이러한 혁신활동을 잘 이해하고 통합할 수 있는 방안이 필요 할 것이며, 여기에서는 이것들을 연계한 경영 전략을 제시하고자 한다. 6시그마와 PI의 특징을 살펴보면, 비즈니스 리엔지니어링은 급격하게 변화하는 프로세스의 구성을 의미하는 것으로 볼 수 있으나 PI는 보다 포괄적인 개념이다. 즉, 새로운 작업전략(Work Strategy)의 비전설정과 실질적인 프로세스 디자인 활동을 포함한다. 또한 기술적 차원, 인간적 차원, 조직적 차원등 다차원적 변화의 추진과 실행을 의미한다. 반면에 6시그마는 고객의 요구(Customer Requirement)를 명확히 이해하고 이에 대응하는 기업의 모든 활동을 Top Down시각에서 합리적인 전사 표준을 통해 측정, 평가 후 도출되는 문제점 및 개선 사항에 대해 개선 프로세스에 따라 TFT(Task Force Team) 활동을 지속적으로 전개함으로써 총체적 고객만족을 구현하는데 궁극적인 목적을 둔다. 이러한 경영혁신 활동은 구성원의 참여를 기반으로 하며, 이에 대한 권한 위임과 더불어 지속적인 지원을 바탕으로 제품 및 서비스에 영향을 미치는 모든 부문에 걸쳐 영역 제한 없이 실시하는 것을 의미한다. 따라서 6시그마는 결코 PI를 대체할 수 없으며 상호 보완적 관계로 연계시켜 추진하는 것이 바람직하다.

• Journal of Korean Society of Transportation
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• v.13 no.1
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• pp.153-165
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• 1995

The budget management in Korea is one-year budget system which is just following int he steps of last years budget plan. This system towards traditional item-by-item and restriction-centered budget system. The budget distribution without establishing and considering rational policy goals and directions have brought inefficient resource allocations. In order to promote the implementation of transportation planning, there are some alternatives like introduction of top-down planning system preparing for the provincial self-government era. In this study, the most efficient alternatives to promote the existing management system is referring by foreign countries transportation planning examples(BVWP system in Germany). First of all, mid-long term transportation and budget planning should be established and then make decisions of resource availability and allocation. In order to provide ration budget planning, introduction of Transportation Planning Programming Budget System(TPBS) has been judged as one of the method of unifying the sysematic transportation improvement planning and budgeting. All transporation planning and related activites can not be expressed in quantity and due to the limitation of excessive cost of analyzing transportation planning and ranking priority, here after, the continuous study to minimize the evaluation cost and introduction of TPBS should be done.

• Asia pacific journal of information systems
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• v.13 no.1
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• pp.119-140
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• 2003

The business value of IT has been the focus of the academic and business field in recent years, along with the massive IT investment. Unfortunately, those studies have not been able to demonstrate strong linkages between the IT investment and performance. The impact of IT investment on performance is an important research topic that needs to consider the role of key contextual factors and intermediate factors. This study develops an integrated model for IT investment, with the mediating effects of production/coordination performance towards firm performance. In addition, the model is moderated by some factors like ISP(Information Systems Planning), Business Planning alignment, top management support, IT education and training, and process innovation. The empirical result, based on the moderating regression analysis, indicates that the relationship between IT Investment and production/coordination performance is significantly positive depending on moderating factors. However, production/coordination performance is partially related to firm performance.

• Asia pacific journal of information systems
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• v.10 no.1
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• pp.61-79
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• 2000

ERP system is a very popular tool for pushing management innovation and implementing an integrated information system. The purpose of this research is to investigate the relationship among the structure of production systems, types of implementation strategy, relative importance of competitive goals, information technology and culture level, and the efficiency from using the system. The data for this study were collected from 45 Korean manufacturing firms that have implemented ERP system. Research results confirm that the success factors include the top managements' strategic views and culture level related to new information technology. But the linkage between the structure of production systems and types of implementation strategy is proved to be very weak. Also control effect of types of implementation strategy on the efficiency of the organization is not strongly recognized. A summarized report of other findings is provided as well.

• Asia pacific journal of information systems
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• v.11 no.2
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• pp.57-78
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• 2001

This study examines which factors are urging Korean companies to participate in e-marketplaces. By adding interorganizational factors, we extended an innovation-theory-based research model that is often applied to study the information technology adoption. 71 questionnaires from 720 Korean manufacturing companies were collected. Independent variables of the research were environmental, organizational, innovation, and interorganizational characteristics. We found that the environmental characteristics, innovation characteristics, and interorganizational characteristics have insignificant effect on the participation of domestic companies in e-marketplaces whereas the organizational characteristics have significant relationship with the participation in e-marketplaces. The result implies that many Korean companies take wait-and-see strategy in the forming stage of e-marketplaces, However, IT infrastructure and the support of top management for IT play very important role in adopting e-marketplaces.

• Journal of Korean Society for Quality Management
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• v.34 no.4
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• pp.110-124
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• 2006

There have been various papers about service quality. This article is one of them. This is about the measurement of service quality in the competitive structure between department and discount store. In this paper, we tried to measure the service quality and overall satisfaction by using 6 sigma, degree of combination and top2box which is a little bit different methodology from traditional ones. The data were collected by the internet survey from 1428 and 1605 department and discount store customers respectively. The result shows the different patterns in the each retail industry. Also, there is a significant difference in terms of sigma level in the each retail industry. Finally, we showed the summarized result as the 6 Sigma Portfolio Matrix.