• 제목/요약/키워드: Operation process

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IT 아웃소싱 운영을 위한 정보시스템 운영감리 모형 (An Information System Audit Model for IT Outsourcing Operation)

  • 김희완;정준;김동수;이혜경;한기준
    • 디지털융복합연구
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    • 제10권11호
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    • pp.185-196
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    • 2012
  • IT 아웃소싱 운영의 효율적이고 품질 높은 서비스를 제공하기 위하여 정보시스템 운영 원칙을 세우고, 그 원칙을 통하여 운영관리가 이루어져야 한다. 따라서, 정보시스템 운영관리 프로세스를 참조한 정보시스템 운영관리 프로세스의 정립이 필요하다. 정보시스템 운영감리는 구축 개발 감리와는 다르게 일회성이 아닌 매주기별로 지속적인 감리가 필요함으로 운영관리 프로세스의 변화에 따라 운영감리 지침도 보완이 이루어져야 한다. 이에 본 논문에서는 IT아웃소싱 운영을 위한 정보시스템 운영감리 모형을 제안하였다. IT서비스 영역을 참조하여 계획, 전략, 계약, 서비스, 관리 등 IT아웃소싱 운영관리를 위한 정보시스템 운영감리 모형 및 점검항목을 제안하였으며, 도출된 감리모형 및 점검항목은 전문가들의 설문조사를 통하여 제안한 모형의 적합성을 검증하였다.

RFID 기반 생산운영 프로세스에서의 BPMS 적용 (BPMS Application for RFID based Manufacturing Operation Management)

  • 김태동;강동훈;최병규
    • 산업공학
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    • 제21권4호
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    • pp.435-443
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    • 2008
  • RFID (Radio Frequence Identification) is emerging technology and it is used for many fields. The research about RFID has been focused on hardware such as increasing hitting ratio. But recently the research about how and where RFID can apply is going on. Especially people are doing research about connecting RFID with existing information system. In this paper, when BPM manage RFID based manufacturing operation process, we show components which is needed and how we can obtain the components. And we apply this to straw manufacturing process on experiment. The claim-handling process and order-handling process which need improvement in straw manufacturing are chosen and we improve those processes. For executing the improved process, we define components which are database, data acquisition workflow and real-time event processing system and then we make prototype system.

퍼스널 컴퓨터에 의한 디이프드로잉 공정설계의 전산화에 관한 연구 (I) (A Study on the process planning of Deep drawing using personal computer)

  • 최재찬;진인태
    • 한국정밀공학회지
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    • 제5권3호
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    • pp.31-42
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    • 1988
  • This paper describes a computer aided process planning system called "Deep-Drawing", "Deep-Drawing" is designed for the drawing sequence of cylindrical and rectangular cups with or without taper and flange. The computer program has written in BASIC language with personal computer. Design Rules for process planning are formulated from process limitation, plasticity theory and experimental results including the know-how of many manufacturing factories. "Deep-Drawing" Capabilities include the analysis of drawing sequence by the determination of optimal drawing ratio, the determination of intermediate shape, dimensions, punch and die radius etc., the calculation of drawing loads and blank holder force to perform each drawing step, and the graphic outputs for the operation sheet.tputs for the operation sheet.

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래핑의 공정변수가 표면거칠기에 미치는 영향 (Effect of Process Parameters on Surface Roughness in Lapping Operation)

  • 최만성
    • 반도체디스플레이기술학회지
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    • 제12권4호
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    • pp.9-13
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    • 2013
  • Lapping is a very complicated and random process resulting from the variation of abrasive grains in its sizes and shapes and from the numerous factors having an effect on the process quality. This paper presents a study of a $2^4$ full factorial experimental design and analysis to optimize surface quality in lapping operation. The optimization of the factors to obtain minimum surface roughness was carried out by incorporating effect plots, main effect plots, interaction plots, analysis of variance(ANOVA), surface plots, and contour plots. The statistical design experiments, designed to reduce the total number of experiments required, indicated that, within the selected conditions, all the parameters influenced at a significance level of 5%. In addition, some of the possible interactions between these parameters also influenced the lapping process, especially those that were of third order. A regression model was suggested and fitted the experimental data very well.

유압시스템 롤-오프 청정도의 이론적 고찰 및 트랙터에의 응용 (A Theoretical Investigation of Roll-Off Cleanliness for Hydraulic System and Application to a Tractor)

  • 이재천
    • 한국자동차공학회논문집
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    • 제8권5호
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    • pp.207-215
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    • 2000
  • This study theoretically investigated the roll-off cleanliness operation to eliminate the built-in contaminants which are primarily the result of manufacturing and assembly procedures first. A rigorous analytical examination of the cleaning process associated with hydraulic systems was performed by developing the general filtration process equations. The sloughing process by which built-in contaminant is entrained in the system fluid was examined during the development of a general analytical expression for sloughing rate. This sloughing rate expression in conjunction with the filtration process equations have lead to a relationship rate expression in conjunction with the filtration process equations have lead to a relationship which describes the flushing and clean-up operation for the hydraulic systems. The effects of the primary roll-off cleanliness factors was discussed and illustrated on the figures. Then, the analytical results was shown to be usefully applied into the design of roll-off flushing equipment for the hydraulic system of a tractor.

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업무효율성 향상을 위한 BPM 소개와 철도공사의 BPM 모델링 (BPM Introduction for work efficiency improvement and BPM Modeling of Korea Railroad)

  • 김동범;안수관;김봉택
    • 한국철도학회:학술대회논문집
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    • 한국철도학회 2005년도 추계학술대회 논문집
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    • pp.1268-1275
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    • 2005
  • The computerization works and environment have been changed from simple transaction and data process request to system connection request, from data computerization to application work automation and process computerization through IT development and Internet spread. Recently, BPM(Business Process Management) concept has been widely propagated. It is expanding interest of business subject. Korea Railroad is operating train operation management system through 5 regional headquarters and organizations under the influence of each regional headquarter. But integrated operation and management of communication each department, work flow management and resources of depot equipment and materials have to need a lot of effort and time in huge organization as Korea Railroad. Therefore, this article realized Web Based BPM Group Ware. This article will define Korea Railroad organization and business process in using this Group Ware. And it will introduce Korea Railroad computer manage system of this Group Ware and efficient Korea Railroad Business Process through modeling and operating department work and resources management in Korea Railroad.

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활성슬러지 공정에서의 조업지원용 전문가 시스템에 관한 연구 (A Study on the Operation Aid Expert System for Activated Sludge Process)

  • 조욱상;이진우;박상진;원종식;김상욱
    • 공업화학
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    • 제7권2호
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    • pp.371-378
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    • 1996
  • 경기도 광주군 소재 경안천 하 폐수 종말처리장을 실제 적용 대상으로하여 공정 조업상에 발생될 수 있는 문제점의 원인을 진단 및 분석하고 이에 적절한 대응 방안을 제시할 수 있는 조업지원 목적의 prototype의 전문가 시스템을 연구, 개발하여 실제 적용 test를 수행하였다. 특히 생물학적 폐수처리 공정인 폭기조와 최종 침전지상에서 발생될 수 있는 공정상의 문제점을 집중분석 (bulking 현상 등) 하여 100 여개의 production-rules로 구성된 지식베이스를 완성하므로써 공정의 안정적인 조업관리 및 유지가 가능하도록 하였고 조업에 있어서 전문 및 표준기술을 제공하므로써 특히 경험이 부족한 신입 현장 조업자들의 조업능률을 향상시킬 수 있었다. 향후의 과제는 조업 data를 통계처리하여 공정조업에 영향을 미치는 인자와 조업 제어변수간에 상관관계를 분석하고 최적의 조업조건을 제시할 수 있는 통계제어모델을 개발하여 전문가 시스템에 접목시킴으로써 Prototype이 아닌 완벽한 공정시스템 도구로 발전시키고자 한다.

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국내 원전 엔지니어링운영모델 활용성 향상을 위한 시스템 개발 (Development of Electronic Management System for improving the utilization of Engineering Model in Domestic Nuclear Power Plant)

  • 이상대;김정운;김문수
    • 한국안전학회지
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    • 제36권5호
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    • pp.79-85
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    • 2021
  • A standard engineering model that reflects the current organization system and engineering operation process of domestic nuclear power plants was developed based on the Standard Nuclear Performance Model developed by the American Nuclear Energy Association. The level 0 screen, which is the main screen of the engineering model computer system, consisted of an object tree structure, which provided information that is phased down from a higher structure level to a lower structure level (i.e., level 3). The level 1 screen provided information related to the sub-process of the engineering operation, whereas the Level 2 screen provided information related to each engineering operation activity. In addition, the Level 2 screen provided additional functions, such as linking electronic procedures/guidelines, providing electronic performance forms, and connecting legacy computer systems (such as total equipment reliability monitoring system, configuration management systems, technical information systems, risk monitoring systems, regulatory information, and electronic drawing system). This screen level increased the convenience of user's engineering tasks by implementing them. The computerization of an engineering model that connects the entire engineering tasks of an establishment enables the easy understanding of information related to the engineering process before and after the operation, and builds a foundation for the enhancement of the work efficiency and employee capacity. In addition, KHNP developed an online training module, which operates as an e-learning process, on the overview and utilization of a standard engineering model to expand the understanding of standard engineering models by plant employees and to secure competitiveness.

전해부상에 의한 상수 슬러지 농축효율 (Sludge Thickening using Electro-Flotation in Water Treatment Plant)

  • 이준;한무영;독고석;박용효;김충일;김미경
    • 상하수도학회지
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    • 제19권2호
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    • pp.155-160
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    • 2005
  • Gravity thickening process has been widely used in WTP sludge thickening at domestic water treatment plant. The operation method of the process is very simple, however, the process requires long detention time about 24~48 hours for sludge thickening, uses polymer, and low total solids of thickened sludge to increase sludge thickening efficiency. To solve there problems, we studied about flotation process, especially, electro-flotation (EF) process in WTP sludge thickening. Electro-flotation process is simpler than dissolved-air-flotation(DAF) process because EF needs only electrode and current to generate micro-bubbles and the operation is easy. This study was performed at two batch columns to compare interface height, total solids, effluent turbidity between an electro-flotation thickening and a gravity thickening. According to the result, an electro-flotation thickening was that interface height was decreasing, total solids had high concentration, and effluent turbidity was low in comparison with a gravity thickening. Also, it will make the high efficiency of following process, such as a dehydrating process and digestive process. because of high total solids and low moisture content in the sludge.

OOUS : 유틸리티 플랜트의 교육용 최적운전시스템 (OOUS : An Educational System for the Optimal Operation of Utility Plants)

  • 오상훈;여영구
    • Korean Chemical Engineering Research
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    • 제46권1호
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    • pp.147-155
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    • 2008
  • 대부분의 화학공장에서는 유틸리티의 운용에 따라 경제성이 크게 좌우된다. 공장에서 이용되는 유틸리티는 중앙 집중화된 유틸리티 시스템에 의해 제공되는데 유틸리티 가운데 가장 큰 비중을 차지하는 것은 수증기로서 이의 효율적인 관리는 공장의 전력 및 용수의 수급에도 직접적인 영향을 미치게 된다. 이에 따라 대학교 4학년 학생 및 회사의 신입사원들이 유틸리티의 효율적 분배에 대한 개념을 바르고 신속하게 정립하고 실제 운전에 활용할 수 있도록 하는 것이 중요하다. OOUS(optimal operation of utility system)는 빠른 시간 내에 유틸리티, 특히 수증기의 효율적 생산과 최적 배분방법들을 학생들이나 신입사원들에게 교육시킬 수 있도록 구성된 시스템이다. OOUS에서는 다양한 유틸리티 관련장치 및 공정들을 다루고 있으며 유틸리티 관련 장치 모델과 운전지식 베이스를 기반으로 최적 운전조건이 제시되도록 함으로써 전체 유틸리티 플랜트의 조업 경비가 절감될 수 있도록 하였다.