• Title/Summary/Keyword: preliminary estimating

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Development of a Framework for Estimating the Benefits of IT Projects : Focusing on Preliminary Feasibility Study (정보화 사업의 편익 추정 프레임워크 개발 : 정보화부문 예비타당성조사를 중심으로)

  • Lee, Chunghun
    • Journal of Information Technology Services
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    • v.17 no.3
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    • pp.101-115
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    • 2018
  • In order to promote the IT business efficiently, the Preliminary Feasibility Study has been conducted since 2004. It is to verify the feasibility of a large-scale IT project in advance and to determine whether to reflect the budget. It is more difficult to analyze the benefits of the IT project than other projects, because the IT project is carried out by combining tangible and intangible assets and human resources. For this reason, the Standard Guideline for Preliminary Feasibility Study in the IT field suggests a framework to support in estimating the benefits of the IT project. However, it includes the following problems : 1) level discrepancy among the benefit categories, 2) lack of types of benefit items, 3) no consideration of benefit inducing factors. So the framework is facing a low utilization. This study develops a new framework through a three-step research process. The new framework can be used not only for preliminary feasibility studies but also for estimating the benefits of general IT projects.

WEB FRONT-END COMPUTING RELATIONAL DATABASE SYSTEM FOR ITEM-LEVEL PRELIMINARY HIGHWAY COST ESTIMATES

  • Jui-Sheng Chou ;James T. O'Connor ;Khali R. Persad ;Wai Kiong Chong
    • International conference on construction engineering and project management
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    • 2005.10a
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    • pp.509-514
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    • 2005
  • In recent years, use of the web technologies and on-line process has immensely swapped single-user platform practice. This study attempted to develop preliminary cost estimating program by means of Web technologies based on statistical modeling results. A prototype Web-based Preliminary Item-Level Cost Estimating System (WBPILCES) using open source software was developed as an on-line estimating tool in this research. The primary objective is to study the possible flexibility of implementing a centralized information system that will be maintained by the Texas Department of Transportation (TxDOT) IT division. The full-scale deployment of proposed information architecture is expected to seamlessly integrate with legacy database system currently used by TxDOT so as to streamline data storage, cost growth tracking and estimates documentation.

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Research for Investment Validity and Preliminary Estimating (투자타당성검토와 예비견적)

  • 이근희;박상민
    • Journal of Korean Society of Industrial and Systems Engineering
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    • v.11 no.18
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    • pp.1-5
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    • 1988
  • In this study we have provided one solution to overcome mistakes with limited technical staffs, capitals and times may be the computer for cost estimating. In view of the speed and the ability to draw on funds of information, we shall see that computer estimating models will become the exhibited and the accepted norm of operation by continuous research. Therefore, the computer is broadly serving the needs of many engineering disciplines and in the area of engineering design and industrial application, inexhaustible developed softwares are presented more easy speed and various application for Cost Engineering.

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A Development of the Ship Weight Estimating Method by a Statistical Approach (통계적 접근법에 의한 선박 중량추정 방법 개발)

  • Cho, Yong-Jin
    • Journal of the Society of Naval Architects of Korea
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    • v.48 no.5
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    • pp.426-434
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    • 2011
  • Accurate weight prediction methods are an essential of the ship design in both ship cost managements and performance satisfactions. When no parent or similar ships are available, an adequate method of the ship weight estimating is required. In this study, there was carried out to develop the ship weight estimating method for the preliminary design phase. The weight estimating methods were first surveyed by the references and summarized their characteristics. The weight estimation method by statistical approach was developed for the container ship because the containerized transportation markets is gradually growing and ship's size and loading capacity are rapidly enlarged. The correlation analysis and the multiple regression analysis were used for developing the weight estimating method. As a results of evaluating the developed method, the error ratio of the variation between estimated weight and ship's data was about 5%. And it was only 1% difference with the calculating weight of conceptual design results by shipyard design team that the estimating weight of ultra-large container ship was predicted by the developed method.

Adaptive Two Dimensional Linear Prediction Algorithm For Estimating Incident Angles of Multiple Broadbamd Signals. (다수의 광대역 신호의 입사각 추정을 위한 이차원의 정응선형예측 알고리즘)

  • 김태원
    • Proceedings of the Acoustical Society of Korea Conference
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    • 1987.11a
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    • pp.61-65
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    • 1987
  • An algorithm for estimating incident angles of multiple broaband signals is proposed. The method adopts semicausal model for two dimensional linear prediction filter coefficients such that the arithmatic averag of the mean squared values of the forward and reverse prediction arrors is minimized. Preliminary results demonstrating the performance of the proposed method are presented. Simulation results indicate that the performance depends on signal-to-noise ratio and prediction order in spatial demension.

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Project Estimating and Marginal Analysis (프로젝트견적(見積)과 한계분석(限界分析))

  • Park, Sang-Min
    • Journal of Korean Society for Quality Management
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    • v.14 no.2
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    • pp.40-46
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    • 1986
  • The decision maker has the job of torecasting capital investments and operating expenses to aid the decision making in choosing and evaluating present and future alternatives. The estimating function eventually analysis, evaluates and choose the alternatives. The analysis stemmed originally from a preliminary design of some sort, and eventually plans are started to investigate investment possibilites. This study provide the descounted cash flow and the present worth method. Despite any choice of an analytical method, there remains the problem of predicting certain future events. Therefore, these models dealing with optimum plant sizing, equipment replacement, and lease or buy will be discussed.

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Preliminary results of 86 GHz GMVA observations on AGN

  • Oh, Junghwan
    • The Bulletin of The Korean Astronomical Society
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    • v.38 no.1
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    • pp.44.1-44.1
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    • 2013
  • We present the preliminary results from 86 GHz GMVA observations on 2 AGN - 0954+658 and 0716+714. The observation was taken with the Global mm-VLBI Array in Oct. 2010, with dual polarization mode. The aim of the observation is to produce the polarization maps of the sources, with the Stokes parameters - I, Q, U and V. The final results will be used for estimating the strength of the intrinsic magnetic field and the geometries of AGN jets.

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Analyzing Data for Development of Structures Cost Estimating Model - Focused on Government Building Project - (건축 구조체 공사비 산정모델 개발을 위한 데이터 분석 - 공공청사를 중심으로 -)

  • Kim, Soo-Min;Cho, Jae-Ho;Lee, Jong-Sik;Chun, Jae-Youl
    • Proceedings of the Korean Institute Of Construction Engineering and Management
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    • 2008.11a
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    • pp.212-215
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    • 2008
  • When managers predict exact construction cost at early stage and design phase, they can reduce construction cost in a more efficient way than to predict at construction stage. But present of public construction cost estimation and management almost after the construction documents design phase. Therefore, construction cost management in the early stage and schematic design phase to generally use approximate estimating is not correct. Accordingly, this study analyze problem of current cost estimating method and a concrete cost plans make using case information of actual cost to analyze in schematic design phase. Possible to check going on the suitable design, this study conducts the preliminary research for the development of cost estimating model.

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A Proposal of Modeling Guide of the Unit Space-based Preliminary Cost Estimation in Urban Renewal Mix-Used Development - Case Study on ○○ Transfer Station Complex - (복합용도 개발 도시재생 사업에서의 단위 공간 기반 개산견적 모델링 가이드 제안 - ○○시 ○○역 복합환승센터 사례를 중심으로 -)

  • Kang, Shin-Yeop;Ahn, Jae-Hong;Kim, Ju-Hyung
    • Journal of KIBIM
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    • v.3 no.1
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    • pp.11-20
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    • 2013
  • Mix-used development in urban renewal project is done to effectively utilize the limited downtown. Generally unlike a single project, It features placing a large number of different facilities(residential, commercial, business, cultural, etc.) which is each other organically linked. The purpose of this study is to suggest the method of modeling guide for 3D preliminary cost estimation considering visual and intuitive judgement of space in mix-used development Urban Renewal project. In this research, introducing SME(Standard Module and Element) breakdown structure, FID(Finish Identity) for estimating building space unit-based quantity take off was implemented. It could narrow the discrepancy of opinion between the stakeholders with more accurate cost-estimates, comparing to the traditional methods.