• International Journal of Contents
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• 제10권2호
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• pp.9-17
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• 2014

Since vehicles' trajectories are so complex and dense traffic changes in nature frequently, the VANET (Vehicles Ad-hoc Network), using Omni-directional Antenna, has many channel collisions (or overlapping) on Data Link phrases (MAC layers). It is not easy to keep a good seamless communication status for VANET because of its unpredictable network environment. Among VANET research, Directional Antenna have been proposed as one of the most common systematical solutions to reduce (or to mitigate) this miss-communication problems by narrowing communicational ranges and making use of its customized error-detection process. However, even though Directional Antennas help VANET keep good seamless communication, many VANET researchers have reported that Directional VANET still has miss-communicational problems - this has lead to problems like 'Directional Hidden Terminal Problem', 'Deafness', 'Un-accuracy Lobe Scopes' and 'High Deployment Cost' being reported in various papers. To establish well-organized design assessments for a good Directional VANET MAC protocol to overcome these problems, we rearranged and grouped current Directional VANET' qualitative criteria from several current survey papers using these categories- 'Directional Discovery', 'Directional Forwarding' and 'Directional Handover'. In addition, based on the results of the following analysis, we show the essential design concerns that need to be looked at in order to develop a well-designed Directional-VANET MAC protocol.

• Asia pacific journal of information systems
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• 제3권2호
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• pp.93-116
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• 1993

This study surveys 212 accounting information systems (AIS) of 85 manufacturing firms by using the research model based on the management process of AIS to figure out the current status and problems of the computing environment and AIS of Korean firms. The analysis of the current status leads to the suggestions to promote the utilization and efficiency of AIS. The level of experiences and education of information system (IS) personnel turns out to be still low. More education is needed to upgrade the IS personnel. AIS users lack in the computer knowledge. The users need more computer education. The analysis on the computerization and information characteristics of the AIS subsystems shows that the computerization is well established in the financial accounting area. On the other hand, the computerization for managerial accounting areas is in its early stage. The managerial accounting systems need be developed to support the managerial decision making effectively. The majority of firms develop the AIS by their own IS teams. When firms use the consulting services in developing AIS, they prefer accounting firms. The majority of firms fail to evaluate the AIS because the evaluation tools are not available. Most firms do not perform the auditing for AIS. It is needed to develop the tool and techniques for evalauation and auditing AIS.

• 한국지능정보시스템학회:학술대회논문집
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• 한국지능정보시스템학회 2002년도 추계정기학술대회
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• pp.215-219
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• 2002

인터넷의 급속한 성장으로 e비즈니스의 인터넷 사용이 증대되었다. 인터넷 환경에서는 새로운 인터넷 사용자라는 소비자를 대상으로 인터넷 소비자 행동에 관한 연구가 중요한 분야로 자리잡게 되었다. 인터넷상에서의 소비자 행동을 설명하기 위해 온라인 인지절차 (Cognitive process)에 관한 연구로, 웹 사이트에 대한 소비자의 태도에 미치는 영향을 밝히는 연구들이 수행되었다. 웹 사이트에 대한 소비자의 태도에 따른 개인화된 마케팅을 위해서는 웹사이트를 소비자의 특성을 고려해서 개인화된 웹사이트를 운영해야 한다. 개인의 정보 시스템 사용에 대한 설명을 위하여 많은 모형들이 개발되어 왔다. 기술 수용 모형(Technology Acceptance Model: TAM)은 개인의 정보 시스템 수용에 영향을 미치는 요소를 설명하기 위하여 가장 폭 넓게 사용되고 있는 모형이다. TRA 모형에 따르면, 개인의 사회적 행위는 그 행위의 결과에 대한 신념에 의해 영향을 받는다고 할 수 있다. 본 연구에서는 고객의 신념을 신뢰 (Trust), 유용성 (Usefulness), 사용의 편의성 (Ease of Use), 위험 (Risk), 보안통제 (Security control)로 분류하고, 고객의 실제 사용 (Usage)을 인터넷 뱅킹 환경에서 측정하여 고객세분화에 적용하였다. 세분화된 고객집단을 분류하기 위해서 인공신경망, 판별 분석 기법을 적용하여 웹 사이트에서 사용할 수 있는 개인화 모형을 개발하였다.

• 가족자원경영과 정책
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• 제15권1호
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• pp.177-197
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• 2011

This study was designed to develop the evaluation scale for health-grade of families. For this goal the related references and the programs of Healthy-Families-Center were analyzed. In the context with the goals and objects of programs in Healthy-Families-Center the index for the evaluation the health-grade of families was deducted. And the concrete items of health-grade of families in 3 parts(R: relation, M: management, E: environment) was discussed. In order to verify the validity and significance of the scale the survey for 200 samples was performed and the data from 191 samples was statistically analyzed. We suggested the application methods of this evaluation scale for health-grade of families. So the 8 types of families were came out: RME, RMe, RmE, rME, Rme, rMe, rmE, rme. Using this type of families the consulting and counselling for the enhancement of health-grade can be developed. We reached the conclusion that this evaluation scale has to be continuously developed and eleborated because the health-grade of families is one of the most important index for the effect of programs of Healthy Families Center.

• 한국경영과학회지
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• 제37권4호
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• pp.111-124
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• 2012

Emergency room process is very important in the whole hospital processes because it is first diagnosis for patient. Above all, triage is important activity which quickly diagnose the status of emergency patient and sets the priority for treatment. This paper analyzes the treatment process pattern by triage type. The results show that the treatment process after triage such as residence time, diagnosis and checkup type, and joint treatment are dependent on triage types. We can use these analysis results for improving the current triage system and developing the new triage system considering a domestic emergency medical service environment.

• 한국멀티미디어학회논문지
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• 제20권7호
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• pp.1073-1089
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• 2017

Changes in the business environment and increased competitiveness have led many companies to consider Business Process Reengineering(BPR) as a means to improve performance. However, while some BPR projects have been successful among the many companies that have performed BPR, most of the reengineering efforts have been deemed unsuccessful as the project failed. There are many answers to this, but the most important point is that the effective linkage between process innovation and information system construction is insufficient. Even if the reform of consciousness is carried out through the promotion of management innovation activities such as BPR, and the process is improved, management infrastructure can not be continuously maintained if infrastructure, especially information system, is not built up to support it. In this paper, we propose BPR and information system combining methodology for successful BPR execution and information system construction, and describe the result of BPR consulting performance when constructing information system and compare the improvement of failure risk factor. In addition, we present the case through the case of K company, and finally present customer satisfaction through post evaluation after completion of K company information system construction project implementation.

• 경영과학
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• 제32권2호
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• pp.111-124
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• 2015

In the management literature, it has been widely accepted among both researchers and practitioners that the level of team creativity is significantly related to the organizational performance. Besides, researchers posited with confidence that team diversity and task difficulty would affect team creativity through team members' activities of exploration and exploitation. However, empirical approaches to proving this belief suffered from lack of real data and proper methods as well. To tackle the research void like this, we propose a multi-agent simulation (MAS) mechanism. By adopting a set of parameters which validity were proven in the related literature, we conducted a series of experiments in the environment of the MAS platform named NetLogo. There sults suggest that managers can differentiate team diversity strategies according to task difficulty. In the case of a difficult task, managers need to increase team diversity so that their teams can maximize team creativity through rigorous exploration and exploitation. It is desirable to maintain an average level of team diversity when performing an easy task.

• 상하수도학회지
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• 제30권3호
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• pp.241-251
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• 2016

As the Enforcement Ordinance of Environmental Policy Act was revised in 2013, total organic carbon(TOC) was added as an indicative parameter for organic matter in Water and Aquatic Ecosystem Environmental Criteria. Under these imminent circumstances, a regulatory standard is needed to achieve the proposed TOC limitation control water quality from the public sewage treatment plants(PSTWs). This study purposes to present the determination method for TOC effluent limitation at the PSTWs. Therefore we investigate the TOC effluent limitation of foreign countries such as EU, Germany and USA, and analyse the effluent water qualities of PSTWs. In using these TOC data, we review apprehensively the statistics-based, the technology-based, and the region(water quality)-based determination method of TOC effluent limitation for PSTWs.

• 한국주거학회논문집
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• 제16권3호
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• pp.59-68
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• 2005

The purpose of this study was to find out the new directions of Korean rural village remodeling policy based on the representatives' needs in 32 rural villages. The villages were selected by accessibility, type of village construction, geographic characteristics of rural area, and administrative district. The interview data were collected from the representatives of each village. By analyzing the qualitative and the quantitative data, the following conclusions were derived: 1) The village remodeling program should be performed with a long schedule plan, flexible budget, and residents' participation. 2) In new villages, the post village management system should be set up in order to conserve the rural environment. 3) Above all, the expert service system based on government support should be done. The experts would guide residents by consulting about village tour, village viewscape of houses and facilities, and the merchandising of the village's specialized resources. 4) The rural village remodeling program should be carried out on the base of the sense of community and the elderly life.

• The Journal of Asian Finance, Economics and Business
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• 제7권11호
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• pp.1105-1111
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• 2020

The study aims to investigates and explore the quality of work life (QWL) and also to find out which QWL factors are considered as primary factors among employees of PT. Duta Transformasi Insani, a consulting service management in Indonesia. The factors of QWL in this study consist of nine components, which are: work environment, organizational culture and climate, relation and cooperation, training and development, reward and compensation, facilities, job satisfaction and job security, work autonomy, and resource adequacy. This study conducted a survey of every employee who works for PT. Duta Insani, which consists of various sample characteristics, such as gender, education level, and length of employment. The descriptive analysis also analyzes how the QWL condition in this company. The method in this research using quantitative descriptive and factor analysis, together with validity and reliability tests, to fulfill the study objectives. The results showed that most dimensions of employees' QWL are within a valid category, with an 80 percent average of this variable. Furthermore, the results also indicate there are two major factors constituting the quality of work life of the employees of PT. Duta Transformasi, which are supportive organizational culture, accounting for 47.75 percent, and organizational facilities, accounting for 13.03 percent.