• Journal of the Korean Data and Information Science Society
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• v.9 no.2
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• pp.237-246
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• 1998

We put the pseudo-random number generator into catagories like MiCG, MuCG, URG, ICG, EICG, and test uniformity and independency by 10,000 times through n empirical trial after selecting this random number generator. Here, from a fraction of data(20, 40, 60, 80, 100) with a significance level of 0.1, 0.05 and 0.01, we drive cumulative frequency with K-S, $X^{2}$, poker, run, autocorrelation test. As a result from the uniformity and independency among five random number generators based on all these data, all random number generator except EICG passed uniformity and independency test, and the URG turn out to be excellent in periodicity.

• Health Policy and Management
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• v.4 no.2
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• pp.111-125
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• 1994

In developing total hospital information system, large amount of time and expense are to be spent while its results are likely to lead itself to end-users' dissatisfaction. Some of the main complaints on the part of end-users come from insufficient consideration of end-users environment as well as inappropriate representation of their requirement in the system alalysis and design. This papre addresses some advantages of Essential Logical Modeling Process for better analysis and design, explaining by example the developmental process of the Patent Management and Accounting System for a tertiary care hospital. In the case, the Essential Model, suggested by McMenamin and Palmer, proved to be an effective tool for clear separation of analysis and design phase and for better communication among system developers and with end-users. The modeling process itself contributed to better program modularity as well, shown in a Structured Chart. Difficulties in learning how to identify' essential activities' for the modeling practice were experienced in the beginnins stage, which were, however, overcome by elaborating some heuristic guideling and by rdferring to necessary tools including State Transition Diagram, Control Flow Diagram, and so many. While full evaluation of the Essential Model usag remains to wait till the completion of the case project, its strengt in making clear distinction between analysis and design phase was enough to be attractive to system analysts. The model concepts are open to many further application fields, particularly such areas as business re engineering, process remodeling, office automation, and organizational restructuring.

• Proceedings of the Korean Information Science Society Conference
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• 2006.10c
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• pp.560-565
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• 2006

최근 보안에 대한 사회적인 관심이 높아지면서 RFID는 기존의 스마트카드와 바코드 시스템이 갖는 여러 기능적인 한계점들을 극복함으로써 향 후 이를 대체할 보안 신기술로서 인식되고 있다. 현재 사무실 출입의 보안을 위해 대표적으로 사용되고 있는 출입문 인증시스템은 일단 출입문을 통과한 사용자들에 대해서는 사무실 내부의 모든 요소들이 무방비 상태로 노출되어 보안상의 허점이 발생한다. 또한 사무실 내 개개의 PC에 단말기를 설치하여 사용하는 스마트카드 인증시스템 역시도 빈번한 자리 이동에 따른 카드 인증 절차의 번거로움으로 인해 근거리 이동시 PC를 잠그지 않는 경우가 빈번하게 발생함으로써 사용자 PC에 저장된 보안이 필요한 데이터들에 대한 침해 우려가 발생한다. 본 논문에서는 다중사용자 환경에서 각각의 사용자가 소지한 RFID 태그를 이용하여 기존 카드시스템과 같이 복잡한 인증절차가 필요 없고 빈번한 자리 이동이 발생하더라도 추가적인 인증작업이 없이 매번 자동으로 컴퓨터 시스템을 잠금 및 해제시킴으로써 인증과정에 따른 사용자의 부담을 줄일 수 있는 보안시스템을 제시한다. 또한 사용자가 출근과 동시에 매일 일상적으로 반복되는 사무실에서의 컴퓨터 작업에 대한 효율을 높이기 위한 사무 자동화 시스템을 구현한다.

• The Journal of the Korea Contents Association
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• v.13 no.12
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• pp.530-539
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• 2013

It is needed to provide a supplicated and standardized training program for hospital coordinators to boost their competencies as professionals. The purpose of this study was to propose a standardized training program for hospital coordinators especially trained at private institutions. Using DACUM method, with 11 professionals, we first developed competencies required for hospital coordinators. They were service mind, attitude, MOT(Moment of Truth) & phone-call etiquette, communication skill, customer behavior, basic medical terminology, insurance, computer skills, etc. Finally, we proposed a standardized training program for hospital coordinators which covers 16 subject areas.

• Journal of the Korean Professional Engineers Association
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• v.32 no.1
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• pp.122-141
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• 1999

Groupware is a new emerging research field, involving increasing numbers of institutions in the USA, Europe, and Asia such as Korea and Japan, etc., as an interdisciplinary research and development area with a strong computer science component. It grew from fairly unsystematic attempts by various developers to generate software that would increase the competence of people working together. This in turn was partly a response to: failures of and problems inherited from Office Automation and Management Information System ; some sociological intuitions about ways people might work together; and a search for uses of new interfacing, networking, and multi-media technologies. In this paper, groupware that has been configured to meet the needs of groups at work is defined as computer-based systems which support working groups of people engaged in common task in a shared environment. The basic concepts, origin, and historic research of the groupware are described. Specially, groupware relies on the approaches and contributions of many disciplines in computer science as well as sociology that is concerning human, social, and cultural activities. So, nine key disciplines of them upon which successful groupware depends are described briefly. Some state-of-the-art implementations and developments are reviewed through classifying and analyzing the current available groupware applications in the field or market.

• Journal of Yeungnam Medical Science
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• v.13 no.1
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• pp.97-109
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• 1996

Recently there has been attempts to develop hospital information system including order communicating system, patient tracing system, tumor registry system, office automation system and picture archiving and communication system(PACS). The authors devloped a practical system that was operated via order communication system of Yeungnam University Hospital. The system provided us the speed, accuracy, reliability, retention, economy and wide applicability through practical test. So we believed that this system would be one of standard computerized programs in radiation oncology practice and providing widely usable data for clinical statistics, medical record, tumor registry system and clinical researches.

• Journal of the Korea Academia-Industrial cooperation Society
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• v.9 no.5
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• pp.1145-1149
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• 2008

This paper presents KEPCO research project for developing wide area DAS by reengineering conventional DAS and its functional upgrade. Through the research project system design requirements were prepared based on the local operation status and oversea examples. Application softwares were also developed supporting integrated operation of several area. The system implementation was performed on Choongnam regional head office for pilot operation. The developed wide area DAS will be fully installed on 41 DCC nation wide and expected to contribute on innovation of our distribution network operation.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.37 no.1
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• pp.11-20
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• 2000

This paper presents the method of extracting the contour and shape parameters for moving object tracking in traffic scenes. The contour is extracted by applying difference image method in reduction image and the features are extracted from original image to grow the accuracy of tracking. We used features such as circle distribution, center moment, and maximum and minimum ratio. Data association problem is solved by these features. Kalman filters are used for moving object tracking on real time. The simulation results indicate that the proposed algorithm appears to generate feature vectors good enough for multiple vehicle tracking.

• The Journal of the Korea Contents Association
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• v.8 no.4
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• pp.30-38
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• 2008

At past, but smaller enterprises had operated each business automation system about office, at present, are making use of integration ERP information system that take advantage of accessible web technology in outside environment. In this research we took smaller enterprise's example, constructed ERP system that real-time processing is available to supply ERP information to customer by real time and to handle business in outside site. With construction result of this system, we verified efficiency of system and customers' satisfaction etc of customer's complaint solution, business productivity elevation, economical curtailment and so on through various kinds quantitative estimation.

• Journal of Ocean Engineering and Technology
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• v.22 no.6
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• pp.95-99
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• 2008

The block assembly of ship consists of a certain type of heat processes such as cutting, bending welding residual stress relaxation and fairing. The residual deformation due to welding is inevitable at each assembly stage. The geometric inaccuracy caused by the welding deformation tends to preclude the introduction of automation and mechanization and needs the additional man-hours for the adjusting work at the following assembly stage. To overcome this problem, a distortion control method should be applied. For this purpose, it is necessary to develop an accurate prediction method which can explicitly account for the influence of various factors on the welding deformation. The validity of the prediction method must be also clarified through experiments. This paper proposes a simplified analysis method to predict the welding deformation of panel block structure. For this purpose, a simple prediction model for fillet welding deformations has been derived based on numerical and experimental results through the regression analysis. On the basis of these results, the simplified analysis method has been applied to some examples to show its validity.