• Asia pacific journal of information systems
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• v.29 no.3
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• pp.448-467
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• 2019

In a new age of smart tourism, free independent travelers (FITs) choose their travel routes in a more diversified and less predictable way with the aid of smart services. This paper focuses on the movements of Chinese outbound FITs in the U.S. in the year of 2018. 110 places to visit (destinations) extracted from 122 travel routes recommendations on Qyer.com, a major online travel community in China, are analyzed with social network analysis (SNA). Based on the results of SNA, employing degree centrality, eigenvector centrality, betweenness centrality, network visualization, and cluster diagram methods, some preferred cities and natural attractions outside city centers (i.e., New York City (NYC), Los Angeles, San Francisco, Washington D.C., and Niagara Falls) are identified. Moreover, it is found that NYC in the East and Los Angeles in the West play a major role in the movements of Chinese FITs. This study contributes to the body of knowledge on tourist destination movements and provides valuable implications for smart service development in the tourism and hospitality industry.

• Journal of Korea Spatial Information System Society
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• v.11 no.1
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• pp.87-96
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• 2009

In u-GIS environments, a geographic information service system for mobile phone is consumer(user) oriented service system based on existing GIS and LBS considering characteristic of mobile phone. In the past, development of a geographic information service system for mobile phone dependent on various hardware specification of mobile phones and mobile operators. From now on, the geographic information service system for mobile phone independents on hardware specification of mobile phones and mobile operators. Also, it changes from service oriented GIS provider(specialist) to service oriented consumer. For the satisfaction of this requirement, we propose a design of geographic information service system for mobile phone using FLEX for creates standard execution file. The standard execution file is able to apply various mobile phone. And we propose a management method of picture contents combination of location information that geographic information service system for mobile phone is provided it firstly. In this system, it provides facilities that display map, manage location, manage contents, manage mash-up, manage map data. And then it provide facility of swf generation for display result map on mobile phone. In this paper, we are implemented the proposed system and seen same results in various mobile phone. The created *.swf file provides same result at any time, anywhere, anyone in spite of different zoom level and different display screen.

• Health Policy and Management
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• v.10 no.4
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• pp.20-56
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• 2000

The purpose of this article was to evaluate the effects of reimbursement system on the basis of diagnosis-related groups(DRGs). We searched articles which was published from 1970 to 2000 using MEDLINE ； Key words "diagnosis-related groups, DRGs, prospective payment system, PPS. Then we reviewed 97 articles on classifying them into several categories of contents. It seems that the effects of DRGs in controlling hospitals cost in the U.S. was not clear cut. The U.S. Medicare PPS using DRGs remains vulnerable to compensatory increases in ambulatory care and long-term care facilities utilization despite cost per case and cost per admission being reduced. Also some research indicated the possibilities of deterioration in health care service quality. So putting theses results together, much more consideration is needed before the application of DRGs reimbursement system in Korea. Particularly there is the crucial difference between U.S. health care system and Korean, we must be aware of the limitations of DRGs and revise the DRG system to applicable in Korea.orea.

• Journal of Korean Society for Quality Management
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• v.28 no.1
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• pp.151-174
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• 2000

Total quality management (TQM) has been adopted in the U.S. as a way of management strategies by private enterprises as well as by the public sector. The ultimate goal of all quality management techniques and strategies is to improve quality by reducing waste, improving production process, and involving all members of the company in quality management. The purposes of this study are to review the performance of TQM activities and, based on the results, practically examine whether TQM is necessary or not in enhancing the performance of medical service institutions (hospitals) by assessing the status of TQM activities of medical service institutions and comparing such activities. A questionnaire survey was conducted against employees working for general hospitals in Seoul and other provincial areas. The questionnaire contained organized questions that were answered in writing by the target employees. A total of 184 questionnaires were collected and analyzed. The results of this study are summarized as follows. First, TQM activities and performance were found to be positively correlated. Second, TQM activities and performance differed according to ownership types. Third, TQM activities and performance differed according to geographical locations. Fourth, TQM activities and performance differed according to leadership types.

• Journal of Korean Society of Water and Wastewater
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• v.29 no.3
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• pp.305-317
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• 2015

The function failure of present major facilities is likely to lead to failure of related systems and/or whole facilities, increasing the necessity for protection of infrastructures, main structures, and major industrial facilities. In addition, safe and efficient management for urban infrastructure (waterworks and sewerage facilities, electricity, telecommunications, roads, etc) installed in the basement or on large cities grounds at various public areas is required. Recently in response to this demand, efforts for vitalizing asset management are being made such as enacting related laws and developing asset management system in the U.S., Australia, Europe and other advanced countries with the concept for a new maintenance. In our county, identifying maintenance system problems such as aging and rapid increasing of existing infrastructures and decision-making about updating maintenance is required for systematic and organizational maintenance. In this study, by comparing and observing the LOS(Level of Service) of each countries' waterworks and risk-based LOS, we suggest the direction of future urban water infrastructure management systems for more effective management.

• Journal of Service Research and Studies
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• v.6 no.3
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• pp.15-27
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• 2016

The current research suggests a new industry and employment structure accelerated by the 4th industrial revolution. An in-depth analysis on relevant researches and a macro analysis on industry and employment structure change have been performed. Past and present industrial revolutions have been reviewed based on the nature of employment and industry structure. With technological advances and increase in productivity, the services industry has developed during the 1st and 2nd industrial revolutions. Moreover, in the 4th industrial revolution era, more changes are expected within the services industry. A new U-model has been derived and a service economy acceleration model has been suggested. This research can be used for deriving desirable industry and economic policy. Future research is needed to develop a detailed solution for human resource management strategy for service economy in the 4th industrial revolution era.

• Proceedings of the Computational Structural Engineering Institute Conference
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• 2010.04a
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• pp.609-612
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• 2010

유비쿼터스 IT시대에 우리사회가 적절하게 대응하여 국민의 삶의 질을 향상시킴은 물론 새로운 성장 동력을 마련하는데 도움을 줄 수 있도록 u-City 서비스 개발에 대한 움직임이 강하게 일고 있다. 이에 본 논문에서는 u-City 내에서 발생할 수 있는 교통돌발상황에 대하여 시민들에게 편의를 제공 할 수 있도록 교통 돌발상황 대응조치 서비스에 관한 정의서를 작성 하였다. u-교통 돌발상황 대응조치 서비스의 주요 특징, 프로세스, 서비스 주요 기능을 정의하고, 비즈니스 모델 및 R&R, 시스템 구성을 분석 정의 하였다. 이 정의서를 통하여, u-Ctiy 내의 새로운 서비스 모델을 적용하고자 한다.

• Journal of Korea Multimedia Society
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• v.11 no.7
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• pp.1016-1024
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• 2008

In this paper, we designed and implemented the ACE(ACtive Emergency call service system) system for emergency call service actively. ACE system has two physical components; E-Device(Emergency Mobile Device) and E-Server(Emergency Server). The role of E-Device is the mobile device in order to call emergency by using mild handi-capped, the elderly and children who are able to communicate theirs intention to another. E-Server is the server for management E-devices with realtime monitering. E-Device will be developed to the portable size for easily mild handi-capped, the elderly and children. When they need the service of emergency call, the button of E-device can be used and the call signal is transmitted to the emergency office and the guardian through Internet and CDMA. E-server should be developed the integrated control system for management of E-Devices basically. And it also supported to realtime monitoring of E-devices with respect to high quality of emergency call service for rise the efficiency.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.16 no.3
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• pp.605-614
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• 2012

Nowadays u-healthcare which is very sensitive to the character of user's information among other ubiquitous computing field is popular in medical field. u-healthcare deals extremely personal information including personal health/medical information so it is exposed to various weaknees and threats in the part of security and privacy. In this paper, RFID based patient's information protecting protocol that prevents to damage the information using his or her mobile unit illegally by others is proposed. The protocol separates the authority of hospital(doctor, nurse, pharmacy) to access to patient's information by level of access authority of hospital which is registered to management server and makes the hospital do the minimum task. Specially, the management server which plays the role of gateway makes access permission key periodically not to be accessed by others about unauthorized information except authorized information and improves patient's certification and management.

• Proceedings of the SAREK Conference
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• 2008.11a
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• pp.75-79
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• 2008

Since tunnel construction order was placed one by one, various sensors and actuators installed at the RTU and higher level system in each tunnel maintenance office had their own protocols depending on construction company. The TGMS testbed established on the extended region of Yong-dong Highway, for example, did not have consistent protocol between each automation levels and management levels without considering the functions and/or roles of each level. The management sever in each tunnel was simply networked to the TGMS server. Therefore, it is impossible to implement a new control algorithm as well as to integrate each other since each tunnel was constructed by different company. So, if the construction company is out of business, there is no way to maintain the corresponding tunnel effectively. In order to solve this problem, all the necessary standard protocols was established between automation level and management levels. These interface standards provide the clear classification between individual tunnel system and tunnel management system. So, even if construction company is different, its effect is minimized, so that it is expected to successfully establish PC based TGMS.