• 제목/요약/키워드: Core Project Management Issues

검색결과 19건 처리시간 0.024초

리모델링 프로젝트의 사업관리 현안 발굴 연구 : 오피스빌딩 리모델링 사업을 대상으로 (Searching for Core Project Management Issues in Remodeling Projects : Focus on office building remodeling projects)

  • 서희준;김한수
    • 한국건설관리학회:학술대회논문집
    • /
    • 한국건설관리학회 2004년도 제5회 정기학술발표대회 논문집
    • /
    • pp.220-223
    • /
    • 2004
  • 국내 건설 시장의 신규 사업의 감소가 예상되고 있다. 이와 함께 대체 시장으로써 리모델링 사업이 부각되고 있다. 그 중 향후 수요 증가가 예상되는 오피스빌딩 리모델링 사업 수행에 참여함에 있어 우선 고려되어야 하는 사업의 주요 관리 현안이 무엇인가에 대한 고찰이 요구된다. 일반 신축 사업과 비교하여 상이한 특징과 프로세스를 지니고 있는 리모델링 사업의 효율적인 수행을 위해서는 사업의 특징을 충분히 고려한 현안의 인식이 갖춰져야 효율적이고 성공적인 사업으로 이끌어 갈 수 있을 것이다. 이에 본 연구에서는 오피스빌딩 리모델링 사업의 사업관리 현안을 발굴 제시하고 현안들이 제시하는 특징을 분석하여 제시하였다.

  • PDF

Spatial database architecture for organizing a unified information space for manned and unmanned aviation

  • Maksim Kalyagin;Yuri Bukharev
    • Advances in aircraft and spacecraft science
    • /
    • 제10권6호
    • /
    • pp.545-554
    • /
    • 2023
  • The widespread introduction of unmanned aircrafts has led to the understanding of the need to organize a common information space for manned and unmanned aircrafts, which is reflected in the Russian Unmanned aircraft system Traffic Management (RUTM) project. The present article deals with the issues of spatial information database (DB) organization, which is the core of RUTM and provides storage of various data types (spatial, aeronautical, topographical, meteorological, vector, etc.) required for flight safety management. Based on the analysis of functional capabilities and types of work which it needs to ensure, the architecture of spatial information DB, including the base of source information, base of display settings, base of vector objects, base of tile packages and also a number of special software packages was proposed. The issues of organization of these DB, types and formats of data and ways of their display are considered in detail. Based on the analysis it was concluded that the optimal construction of the spatial DB for RUTM system requires a combination of different model variants and ways of organizing data structures.

MIS 교육과정 개선을 위한 실무자들의 인식 조사 연구: 정보시스템 전문가의 핵심 직무역량 중심으로 (Perception of Practitioners for MIS Curriculum, Development: Focused on the IS Professional's Core Competencies)

  • 장윤희
    • 경영정보학연구
    • /
    • 제5권2호
    • /
    • pp.219-239
    • /
    • 2003
  • 본 연구는 국내 4년제 대학 MIS 교육과정을 실무자 관점에서 평가하고, IS 인력의 업무내용과 수행비중, 그리고 그에 요구되는 핵심 직무 역량을 현업 부서원들과 IS 전문가 관점에서 비교 분석함으로써 4년제 대학 및 IT 전문기관의 교육 프로그램 방향과 교수법에 관해 논의하고자 하는 것이다. 실무자들의 인식에 따르면 향후 NIS 전공자에게 가장 적합한 직무는 IS 기획 및 전략 수립, 어플리케이션 시스템 개발, IT 컨설팅 등으로 나타났고, IS 전문가에게 요구되는 핵심 직무 기술로는 인간관계 기술군이 가장 중요한 것으로 인식되었으며, 경영활동의 흐름과 프로세스에 대한 이해, 경영기능에 대한 지식, 그리고 최신 IT에 대한 지식과 평가 능력, IT 요소기술군 순으로 나타났다.

CNN 기반의 IEEE 802.11 WLAN 프레임 포맷 검출 (CNN based IEEE 802.11 WLAN frame format detection)

  • 김민재;안흥섭;최승원
    • 디지털산업정보학회논문지
    • /
    • 제16권2호
    • /
    • pp.27-33
    • /
    • 2020
  • Backward compatibility is one of the key issues for radio equipment supporting IEEE 802.11, the typical wireless local area networks (WLANs) communication protocol. For a successful packet decoding with the backward compatibility, the frame format detection is a core precondition. This paper presents a novel frame format detection method based on a deep learning procedure for WLANs affiliated with IEEE 802.11. Considering that the detection performance of conventional methods is degraded mainly due to the poor performances in the symbol synchronization and/or channel estimation in low signal-to-noise-ratio environments, we propose a novel detection method based on convolutional neural network (CNN) that replaces the entire conventional detection procedures. The proposed deep learning network provides a robust detection directly from the receive data. Through extensive computer simulations performed in the multipath fading channel environments (modeled by Project IEEE 802.11 Task Group ac), the proposed method exhibits superb improvement in the frame format detection compared to the conventional method.

SCHEMATIC APPROACH TO IMPROVE TIME PERFORMANCE OF HIGHWAY CONSTRUCTION CONTRACTS

  • Ralph D. Ellis ;Jae-Ho Pyeon
    • 국제학술발표논문집
    • /
    • The 1th International Conference on Construction Engineering and Project Management
    • /
    • pp.638-642
    • /
    • 2005
  • This paper presents incentive application strategies and delay prevention strategies as schematic approaches to improve time performance of highway construction contracts. This research recognizes the importance of improving time performance during highway construction. Strategic solutions of the most core issues on time performance incentive contracting are identified. The suggested incentive application strategies develop criteria for applying time classification to projects, for assigning project time classifications to contractors and designers, and for determining appropriate incentive values in A (cost) + B (time cost) and other performance incentive contracts. The suggested delay prevention strategies develop criteria for determining the appropriate subsurface utility engineering (SUE) level and to develop best practices for avoiding utility relocation delays. A schematic approach for each strategy is developed. This paper also introduces current incentive contracting practices in Florida. The researchers obtained the information from experienced persons in the highway construction industry, including key highway contractors, designers, and Department of Transportation (DOT) and Federal Highway Administration (FHWA) personnel. The major focus of this research is to develop strategies and suggest approaches to improve time performance of highway construction contracts. For future study, practical tools to facilitate implementation of the suggested strategies should be developed, so that the criteria, implementation processes, and best practices developed may contribute to the current industry-wide effort to improve time performance.

  • PDF

Modeling and analysis of selected organization for economic cooperation and development PKL-3 station blackout experiments using TRACE

  • Mukin, Roman;Clifford, Ivor;Zerkak, Omar;Ferroukhi, Hakim
    • Nuclear Engineering and Technology
    • /
    • 제50권3호
    • /
    • pp.356-367
    • /
    • 2018
  • A series of tests dedicated to station blackout (SBO) accident scenarios have been recently performed at the $Prim{\ddot{a}}rkreislauf-Versuchsanlage$ (primary coolant loop test facility; PKL) facility in the framework of the OECD/NEA PKL-3 project. These investigations address current safety issues related to beyond design basis accident transients with significant core heat up. This work presents a detailed analysis using the best estimate thermal-hydraulic code TRACE (v5.0 Patch4) of different SBO scenarios conducted at the PKL facility; failures of high- and low-pressure safety injection systems together with steam generator (SG) feedwater supply are considered, thus calling for adequate accident management actions and timely implementation of alternative emergency cooling procedures to prevent core meltdown. The presented analysis evaluates the capability of the applied TRACE model of the PKL facility to correctly capture the sequences of events in the different SBO scenarios, namely the SBO tests H2.1, H2.2 run 1 and H2.2 run 2, including symmetric or asymmetric secondary side depressurization, primary side depressurization, accumulator (ACC) injection in the cold legs and secondary side feeding with mobile pump and/or primary side emergency core coolant injection from the fuel pool cooling pump. This study is focused specifically on the prediction of the core exit temperature, which drives the execution of the most relevant accident management actions. This work presents, in particular, the key improvements made to the TRACE model that helped to improve the code predictions, including the modeling of dynamical heat losses, the nodalization of SGs' heat exchanger tubes and the ACCs. Another relevant aspect of this work is to evaluate how well the model simulations of the three different scenarios qualitatively and quantitatively capture the trends and results exhibited by the actual experiments. For instance, how the number of SGs considered for secondary side depressurization affects the heat transfer from primary side; how the discharge capacity of the pressurizer relief valve affects the dynamics of the transient; how ACC initial pressure and nitrogen release affect the grace time between ACC injection and subsequent core heat up; and how well the alternative feeding modes of the secondary and/or primary side with mobile injection pumps affect core quenching and ensure stable long-term core cooling under controlled boiling conditions.

漢江 水質保全 行政에 관한 硏究 (A Study on the Administration for the Han River Water Quality Control)

  • Kim, Kwang Hyop
    • 한국환경보건학회지
    • /
    • 제10권2호
    • /
    • pp.9-40
    • /
    • 1984
  • This thesis purports to overview the diverse administrative and organizational factors and plannings developed by the government organizations, municipal or otherwise, to tackle the Han River water pollution issues in the past years. This thesis also looks into the ever-worsening Han River water pollution problems, in particular, in terms of the various government plans ostensibly designed to reduce the pollution level but with little success. Also dealt with are the efficiencies with which the laws and decrees on water pollution the administrative organizations put to use in the prosecution of the diverse antiwater pollution projects involving the Han River basin. From the early 1960's up to the 1970's the government had concentrated on the growth-oriented economic policy with the result that little attention had been paid to the water pollution and other environmental issues that are bound to arise from the massive economic growth. Belatedly, the five-year Hah River Development Project was initiated in 1982 with emphasis on reducing the water pollution level at Hah River to the minimum. The following are the gists of the thesis and recommendations for the future antiwater pollution plans by the administrative organizations: 1. Documents to date indicate that the irrigation projects along the Han River area had been the main focus of attention during the Yi Dynasty and under the Japanese rule of the country. 2. Despite that the water pollution issue became the subject of many debates among the academic and research institutions in the 1960's and in the 1970's, the administrative organizations in charge of the Han River water quality control failed to come up with a concrete plan for the river's water quality control. 3. Nevertheless, the water pollution of the Han River area in fact began in the 1950's, with the unprecedented concentration into Seoul of population and the industrial facilities on a larger scale, in particular, enforced by the government's strong growthoriented policy in its Economic Development plans in the 1960's. 4. Starting in the 1960's, the Han River water pollution level dramatically increased, but the government was reluctant to promulgate or put into effect strong measures to curb the many factors contributing to the river water pollution, thus worsening the environmental issues along the Han River basin. 5. The environmental protection law and other laws and decrees relating to the antiwater and air pollution issues that were subsequently put into effect underwent so many changes that efficient anti-water pollution policies could not be effected for the Han River basin. The frequent organizational reshuffle within the administrative units concerned with environmental problems has resulted in the undue waste in personnel management and finance. 6. The administration on the environmental protection could not be efficiently carried out due to the organizational overlapping. Under the existing law, frequent organizational frictions and inefficiency are bound to occur among the central government offices themselves, as well as between the central government and the Seoul city administration, and among the city's administrative offices over the conservation of the Han River basin and over the river's anti-water pollution issue. 7. In the planning and prosecution of the Han River project, political influences from the president down to the lower-level politicious appear to have been involved. These political influences in the past had certainly had negative influence on the project, nevertheless, it appears that in the recent years, these political influences are not all that negative in view of the fact that they serve as a positive contributing factor in developing a better water quality control project along the Han River basin. The following are a few recommendations based on the data from the thesis: First, officials in charge of the Han River water quality control should pay attention to a careful screening of the opinions and recommendations from the academic circles and from the public should be made so that the government could better grasp the core issues in the environmental problems that require preventive and other necessary measures. Second, vigorous redistribution policies of population and industrial facilities away from the Seoul area should be pursued. Third, the government should refrain from revising or revamping too frequently the laws and decrees on the anti-water pollution, which is feared to cause undue inconveniences in the environmental administration. Fourth, a large-scale streamlining should be made to the existing administrative organization in an effort to do away with the inter- and intra-organizational friction. It is recommended that a secretariat for the Hah River basis conservation be established. Fifth, High-level administrative officials, with a thorough knowledge and vision on the Han River water quality control, should be prepared to better deal with the budgeting and personnel management for the Han River water pollution control not only at the control government, but also at the Seoul city municipal government levels. Environmental issues should be kept distinct from political issues. Environmental issues should not serve as a window-dressing for sheer political purposes. Sixth, the Hah River proiect should also include, along with the main Han River basin, those areas covering North Han River, South Han River, and the tributaries to the main river basin. The 'Han River Basin Water Quality Control Board' should be established immediately as a means of strengthening the current Han River basin water quality control policy. Seventh, in drawing up the Han River proiect, the administrative officials should be aware that Han River basin is a life line for those people in the region, providing them with not only a sheer physical space, but with a psychological living space for their everyday life.

  • PDF

국방획득 과정에서 SE개념 기반의 군사력건설 설계 방법론 연구(영향요인 우선순위 결정 중심으로) (A Study on the Design Methodology of SE-Based Military Force Construction in Defense Acquisition Process (Focusing on Influencing Factor Priorities))

  • 김흥빈;서재현
    • 시스템엔지니어링학술지
    • /
    • 제15권2호
    • /
    • pp.87-97
    • /
    • 2019
  • This paper focuses on the SE concept based on the weapon system design, which is the lack of systematic research at the stage of military requirements creation prior to acquisition management phase. Influence factors were derived by focusing on the core issues that were at issue in the process of requirements analysis, requirements verification, and business management in recent years. Next, the impact factor was prioritized using the AHP technique and then alternatives were suggested. As a result, through the hierarchical analysis process, 'substantiation of necessity' was found to be the most important factor in the large category, and 'satisfaction of the operating concept' was the most important factor. In addition, as a result of calculating the final weight for each nutritional factor, it was analyzed in order of 'enemy threat response ability', 'response to operational environment change', 'performance considering operational environment', and 'guaranteed power generation'. The results of this analysis suggest which factors should be focused on, firstly, based on the concept of SE by the military and JCS.

통합설계관리의 개념적 틀 및 역량강화 요소 - 건축과 플랜트를 중심으로 - (Framework and Core Competency of Integrated Design Management (IDM))

  • 김예솔;정영수
    • 한국건설관리학회논문집
    • /
    • 제15권1호
    • /
    • pp.122-133
    • /
    • 2014
  • 최근 해외공사 수주 증가 및 건설산업의 발주방식의 변화로 인해 관리 범위가 확대되고 있으며, 이에 따른 기획단계의 관심이 높아지고 있다. 이를 위해 설계, 구매와 관련한 업무의 중요성이 강조됨에 따라 그에 따른 관리에 대한 필요성이 증대하고 있다. 그럼에도 불구하고, 지금까지 설계관리는 설계단계에 국한되어 성과품의 품질을 위한 관리에 치중해 있었으며, 건설생애주기를 포괄하여 정의한 연구는 매우 부족하다. 따라서 포괄적인 관점에서의 설계관리 개념, 범위 그리고 활용 방식에 대한 연구가 필요하다. 본 연구는 통합설계관리의 개념과 역할을 명확하게 정의하기 위한 개념적 틀(Framework)을 제안하고, 이러한 개념 요소를 바탕으로 향후 발전 방향을 분석하는데 있다. 이를 위하여 플랜트와 건축의 사업특성을 비교하여 실무에서 가장 관심이 높다고 판단되는 건설사업관리 기법 네 가지(공정원가 통합관리, 설계관리, 형상관리 그리고 인터페이스관리)를 선정하였으며, 그 개념 및 활용 범위에 대한 적용 가능성을 고찰하였다. 그리고 설계관리 선행연구 문헌을 조사함으로써 설계관리의 포괄적인 의미 변화와 발전 방향의 모색을 통한 통합설계관리의 틀을 제시하였다. 나아가 이에 대한 타당성 및 적용성을 검증하기 위하여 각 건설사업관리 기법 등 상관관계 및 변화 양상을 분석하였으며, 현장 방문 및 전문가 인터뷰를 통하여 제시된 현황 분석 및 개념 요소에 대한 우선순위를 확인하였다. 본 연구는 플랜트와 대형 건설 사업에서 체계적이고 효율적인 통합설계관리 구현을 위한 우선순위 선정과 전략적인 활용 방안으로서 설계관리를 위한 효과를 기대한다.

건설기업 정보화 추진 방안: 대형 건설사 사례를 중심으로 (An Exploratory Analysis of IT Implementation: A Case Study of Construction Companies)

  • 한정숙;김영신;이승찬
    • 경영정보학연구
    • /
    • 제6권2호
    • /
    • pp.209-225
    • /
    • 2004
  • 본 연구는 정보화 수용이 상대적으로 미흡한 건설업계의 건설정보화 추진 필요성을 피력하고, 이를 궁극적인 기업성과 제고로 연결시키기 위한 목적을 가지고 진행되었다. 이를 위해 우선적으로 기업의 각 부문 최적화의 시각에서 벗어나 통합적이고 전사적인 시각으로 접근해야 함을 강조하였다. 본 연구에서는 건설업의 핵심 프로세스를 중심으로 건설정보화 추진현안을 도출하였고, 이를 토대로 건설정보화 추진방안과 향후 전개방향을 제시하였다. 본 연구를 위해 선행연구들을 통하여 건설기업의 정보화 구조모델 및 건설정보화 추진모델을 개발하였으며, 건설정보화 성공도입 기업의 임원들과의 인터뷰 등 사례연구가를 통해 본 연구 모형들의 타당성을 검증하였다. 본 연구에서는 성공적인 건설정보화 추진 사례로서 PMS 구축, 통합재무정보시스템 구축 및 CRM 시스템 구축 사례연구를 제시하였다.