• 한국IT서비스학회:학술대회논문집
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• 2009.11a
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• pp.176-180
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• 2009

현재 우리나라 SI(Service Integration)에서 사업발주자 및 수행자는 소프트웨어사업 대가산정에 많은 어려움을 겪고 있다. 사업발주자는 관례적인 사업비 산정으로 일관하고, 사업수행자는 근거없이 받아들이는 것이 현실이다. 또한 감리 수행 시 사업비산정근거를 점검할 체계를 갖추지 못하고 있다. 이로 인해, 비용관리 위험 및 파생위험들을 초래할 수 있다. 이에, 사업비 산정과 위험에 대한 구체적인 인식과 연구가 필요하다.

• Journal of the Korea Society of Computer and Information
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• v.18 no.5
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• pp.77-85
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• 2013

In this paper, we present the cost measurement metrics for the operation management and service improvement besides the general maintenance. The cost measurement metrics of the operation management and service improvement are based on the metrics that are classified and summarized precedent studies and complemented by empirical measuring indicators, and we propose the maintenance cost estimation model based on this metrics. The maintenance costs can be calculated detailedly, because the proposed metrics can be used selectively, depending on the scope of the information system maintenance. The effectiveness of the proposed maintenance cost measurement metrics and cost estimation model is verified by comparison between existing studies and our research.

• Journal of Digital Convergence
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• v.11 no.3
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• pp.115-126
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• 2013

The purpose of this study was to confirm the extent of the reduction in the total cost of ownership of the open source software in comparison to the commercial software installed for information system, PC and cloud computing. Accordingly, the actual reduction rates in the total cost of ownership, when open source software is installed in the information system, PC and cloud computing, were computed and analyzed for 51 companies in the area of information system, 18 companies in the area of PC and 6 companies in the area of cloud computing, which included government institution, educational institution and private enterprises. The results of expert survey illustrated that the reduction rates are (1)63.3% on the average for the 4areas of information system, namely, DBMS, WAS, Web and OS, (2) 59.4% on the average for the 6 areas of PC, namely, OS, Documentation Program, Back-up and Restoration, Screen Capture, Vaccine and Others and (3) 61.2% on the average for the 6 areas of cloud computing, namely, Virtualization, OS, WEM/WAS, DBMS, DFS and Cloud Management.

• Korean Journal of Construction Engineering and Management
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• v.8 no.5
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• pp.71-79
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• 2007

It is common that the analysis of VE/LCC is performed in design phase of quay wall structures. The analysis is mainly executed based on experience and engineering sense of expert considering the selection of construction method, construction and maintenance cost. Recently there are increasing demands on the analysis that includes uncertainty and vulnerability of input parameters, for this purpose, fuzzy reliability based probabilistic VE/LCC analysis model for quay wall structures is suggested. In VE/LCC analysis for quay wall structures, the application of probabilistic analysis method give very similar results compare with those of deterministic analysis method. It is anticipated that the methodology proposed in this paper can also be utilized in the design and maintenance phase of other facilities where decision making is made for the probabilistic life cycle cost and value analysis.

• Journal of Information Technology and Architecture
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• v.10 no.3
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• pp.323-334
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• 2013

There are many studies on the project planning, project management and quality management. The cost of the new project takes only 20% of system's lifetime resource and the costs of the maintenance and infrastructure take more than 80%, so the study on the maintenance is much more important than the study on the new project. There has been many studies on the economic life cycle of the system using it's maintenance cost, but no studies on it's infrastructure cost. This paper provides how we can adapt infrastructure cost, which takes more than 40% of system's life cycle cost, to the economic life cycle of the system and its effects on the system's economic life cycle.

• Journal of Software Assessment and Valuation
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• v.17 no.2
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• pp.11-17
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• 2021

In this study, problems of software completeness appraisal are pointed out and their solutions are presented by analyzing appraisal cases and judicial precedents. Completeness appraisal, ready-made appraisal, defect appraisal, and cost appraisal have been classified as and have been evaluated with extant software completeness appraisals. From a legal point of view, and in judicial precedents, however, there is a big difference between the definition of completeness and the completion rate. This is because the degree of completeness is evaluated under the premise that the software's development is complete, whereas the ready-made appraisal inspects the development progress of unfinished software. Often, in cases involving software completion rate, the total completion level is calculated by weighting each step of the software development process. However, completeness evaluations use the software's realization-operation as its sole criterion. In addition, another issue not addressed in existing software completeness appraisal cases is that there is no mention of who is responsible for software defects, whereas in case law, the responsible party is determined by finding who caused the dispute. In this paper, we systematically classify these problems, and present a novel evaluation method that separates software completeness evaluations from software completion evaluations.

• Proceedings of the Korea Water Resources Association Conference
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• 2019.05a
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• pp.227-227
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• 2019

댐 및 이와 관련된 시설은 일반 공공 시설에 비해 수명이 긴 것이 특징이다. 최근 이러한 댐 시설은 준공 후 30년에서 50년 가까이 경과한 것이 많아 지금까지 경험한 적이 없는 하드웨어적, 소프트웨어적 관점에서의 노후화 및 시설 관리 문제가 현실화될 가능성이 점증하고 있는 것이 현실이다. 이에 기존 국내 외 연구를 살펴보면 시스템 도입 측면에서의 연구가 많다: (1) 다양한 고용량의 데이터를 통합 관리하기 위한 시스템, (2) 댐 준공까지의 기존 정보를 효율적으로 열람 검색 할 수 있는 시스템, (3) 댐 관리 대장 시스템 등. 그러나 근본적인 관점에서 살펴보면 이러한 시스템 도입 조차 사람의 운용, 재료 및 설비의 구매, 그리고 시스템의 운용 등을 위한 재원의 조달이 근간이라 할 것이다. 이에 본 연구는 재정조달의 관점에서 국내외 댐 유지관리비 산정기준 사례를 비교 검토하고자 한다.

• Journal of Korean Society for Geospatial Information Science
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• v.12 no.1 s.28
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• pp.79-85
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• 2004

The GIS(Geographic Information System) projects require big initial investment and cost of maintenance. Decision makers would not launch GIS projects unless they are convinced of the benefits of the projects. Therefore the purpose of this paper is to develop an appropriate model for GIS project evaluation. We proposed a GIS project evaluation model and summarize the steps involved in Cost-Benefit Analysis(CBA). The costs of a GIS implementation include hardware and software cost, costs of database development, training expenses, annual maintenance expenses, and other annual expenses. The benefit by using GIS has been assessed into Type I(direct benefits), Type II(indirect benefits), Type III(benefits that result from the sale of information services), Type IV(intangible benefits).

• Proceedings of the Korea Information Processing Society Conference
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• 2008.05a
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• pp.265-268
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• 2008

임베디드 시스템에서의 소프트웨어 비중과 규모의 지수적 증가로 인해 관련 개발 프로젝트의 경우 많은 개발 지원도구를 활용한 개발활동이 이루어 지고 있다. 하지만 각 개발 조직간 상이한 개발 지원도구의 사용과 관리로 인해, 협업 개발체제에 문제가 발생하고 있으며, 단위 개발조직의 개발 지원도구의 추가 소요량 산정시 정량적인 데이터에 근거하지 않은 부정확한 구매 예측으로 인해 많은 개발 예산의 낭비가 발생하고 있다. 이에 본 연구에서는 개발 조직간 개발 효율성을 높이기 위한 효율적인 인프라 환경을 구축하기 위해, 통합 도메인 환경하에 개발 지원도구의 일원화된 관리와 개발조직간의 라인센스 사용량 측정을 위한 모니터링 시스템 개발로, 개발 지원 도구 추가 소요 발생시 정확한 소요량 예측과, 사용량에 근거한 공정한 비용 분배 절차를 제시하고자 한다.

• Journal of Information Technology Applications and Management
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• v.19 no.2
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• pp.181-196
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• 2012

The cost of software maintenance occupies about two thirds in the software lifecycle. However, it is not easy to estimate the cost of software maintenance because of various viewpoints about software maintenance, unclear estimation methods, and complex procedures. Until now, the cost estimation model has used compensation factors for software characteristic and environment on the basis of program size. Especially, most of existing models use maintenance rate of total software cost as a main variable. This paper suggests the software maintenance cost estimation model that uses the result of calculating real maintenance efforts. In this paper, we classify functional maintenance and non-functional maintenance as software maintenance activity type. For functional maintenance, present function point of target software is needed to evaluate. The suggested maintenance cost evaluation model is applied to a software case in public sector. This paper discusses some differences between our model and other modes.