• Title/Summary/Keyword: methodology(方法論)

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Methodology for Measuring the Quality of Experience of E-Participation Systems (전자참여시스템의 체감품질 측정방법론)

  • Byun, Dae-Ho
    • Journal of Digital Convergence
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    • v.10 no.1
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    • pp.21-28
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    • 2012
  • E-participation is the term referring to the use of information and communication technologies to political participation by enabling citizens to connect with one another. Because e-participation systems are already constructed and operated, continuous usage is regarded as a major concern for successful e-participation. E-participation systems should guarantee ease of use, user satisfaction, and high quality. In addition, measuring the quality of e-participation systems will provide a useful strategy. This paper suggests a methodology for measuring quality of experience of the e-participation system and computing the quality score. We apply two concepts of usability measurement method and quality of experience that are most suitable. We provide the target of measurement,, the construct of quality of experience, the method of experiment and analysis of data, and the scoring method of quality of experience.

A Study on the Inference of Detailed Protocol Structure in Protocol Reverse Engineering (상세한 프로토콜 구조를 추론하는 프로토콜 리버스 엔지니어링 방법에 대한 연구)

  • Chae, Byeong-Min;Moon, Ho-Won;Goo, Young-Hoon;Shim, Kyu-Seok;Lee, Min-Seob;Kim, Myung-Sup
    • KNOM Review
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    • v.22 no.1
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    • pp.42-51
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    • 2019
  • Recently, the amount of internet traffic is increasing due to the increase in speed and capacity of the network environment, and protocol data is increasing due to mobile, IoT, application, and malicious behavior. Most of these private protocols are unknown in structure. For efficient network management and security, analysis of the structure of private protocols must be performed. Many protocol reverse engineering methodologies have been proposed for this purpose, but there are disadvantages to applying them. In this paper, we propose a methodology for inferring a detailed protocol structure based on network trace analysis by hierarchically combining CSP (Contiguous Sequential Pattern) and SP (Sequential Pattern) Algorithm. The proposed methodology is designed and implemented in a way that improves the preceeding study, A2PRE, We describe performance index for comparing methodologies and demonstrate the superiority of the proposed methodology through the example of HTTP, DNS protocol.

Process Alignment between MND-AF and ADDMe for Products Reusability (산출물 재사용성을 위한 MND-AF와 ADDMe 프로세스 정렬)

  • Bu, Yong-Hee;Lee, Tae-Gong
    • Journal of the military operations research society of Korea
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    • v.32 no.2
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    • pp.131-142
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    • 2006
  • Nowadays, most enterprises have introduced both EA methodology to optimize an entire enterprise and CBD methodology to improve a software reusability. The Korea Government not only have developed many EA guiding products such as EA framework, Reference Model, Guideline, etc. but also have instituted a law to optimize a government-wide enterprise. The Minister of National Defense(MND) have developed the MND-AF as a standard methodology for EA and the ADDMe as a standard methodology for CBD. But it is possible to develop products of WD-AF and ADDMe redundantly because the process of MND-AF and ADDMe is not quitely aligned. The purpose of this paper is to present a scheme that ADDMe can reuse the artifacts of MND-AF by analyzing the relationships between two processes. In order to identify the relationships between two processes, we first identify the relation of a 'definition' part of two processes and then identify the relation of an 'attribute' part based on the relation of a 'detailed definition' part. As a result we found that 113 attributes of MND-AF are related to 49 attributes of ADDMe. Therefore the proposed study will decrease the development cost and time and will be a good example for aligning the process of EA and CBD methodology.

An Iterative Approach to the Estimation of CO2 Abatement Costs (방향성 벡터 일반화를 통한 이산화탄소의 한계저감비용 연구)

  • Repkine, Alexandre;Min, Dongki
    • Environmental and Resource Economics Review
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    • v.22 no.3
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    • pp.499-520
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    • 2013
  • This study proposes an iterative approach to the estimation of the marginal abatement costs of undesirable outputs by computing the slope of the efficient production possibilities frontier on the basis of the efficient projection points generated by the directional output distance function approach due to Fare et al. (2005) based on duality theory. In case of the latter methodology, the estimated marginal abatement costs differ significantly depending on the choice of the directional output vector. In addition, depending on the curvature of the underlying PPF the efficient projection points may be located at a significant distance away from their actually observed counterparts. While it would be more logical to estimate marginal abatement costs as a PPF slope at a point corresponding to the actually observed emissions level, the methodology based on duality theory is likely to produce unstable results due to the problems associated with applying the theorem of implicit function differentiation. Since our methodology is not based on duality theory, our results are immune to both of these problems. We apply our methodology to a sample of Western European countries for the period of 1995-2011 to illustrate our approach.