• Proceedings of the Korea Information Processing Society Conference
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• 2001.04b
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• pp.677-680
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• 2001

인터넷의 발달과 더불어서 M-Commerce 상에서의 off-Line 지불에 관한 관심이 높아지고 있다. 이것을 가능하게 해는 핵심 요인 중에 하나는 차세대 이동통신인 IMT 2000과 Bluetooth 기술이다. 본 논문에서는 IMT 2000과 Bluetooth에 관한 관련 기술과 M-Commerce 상에서의 off-Line 지불 비즈니스 모델의 설계를 제안하였다.

• Journal of the Korea Society of Computer and Information
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• v.27 no.9
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• pp.217-224
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• 2022

Based on the success model and Expectation Confirmation model of information system, the concept model of mobile bus payment App users' willingness to continue using is constructed by introducing function quality and interface design quality. A total of 264 valid questionnaires are obtained by issuing online questionnaires, and the model is tested by SmartPLS3.0 software The results show that users' perceptions of information quality, system quality and interface design quality will affect users' perceived usefulness and satisfaction through the scene, and then affect users' willingness to continue to use; Perceived functional quality has a significant impact on perceived usefulness, but has no significant impact on satisfaction. Perceived usefulness has a significant impact on user satisfaction.

• The KIPS Transactions:PartC
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• v.9C no.5
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• pp.687-698
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• 2002

Together with the activation of wireless Internet, the interest for various integrated methods of the existing wired and wireless e-commerces is on the rise. For the integrated wired and wireless e-commerce, firstly, the optimized security and authentication under the radio communication environment should be decided. And also the user-friendly usage is important. In this paper, we designed and implemented wired and wireless interworking Mobile Wallet on terminal that can be used through both wired and wireless methods by developing electronic wallet module for electronic payment using MIDP (Mobile Information Device Profile) based on J2ME (Java 2 Micro Edition). The characteristics of mobile wallet implemented in this paper provide the stability through encoding/decoding payment information and on-line usage on wired/wireless environments through downloading electronic wallet. In addition, we also present safe and convenient payment method for e-commerce based on wired/wireless Internet.

• Journal of Korean Society of Rural Planning
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• v.13 no.4
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• pp.1-8
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• 2007

The dichotomous-choice contingent valuation method is applied to estimate the landscape value of Jeju Island's stonewall fencing farming land. A distribution-free approach, Turnbull empirical distribution model, is employed to solve negative willingness to pay and truncation problems. The data used are collected from the interviews with tourist about willingness-to-pay at the various donation amount levels of Jeju stonewall's landscape value. The evaluation result is shown that the average amount of willingness to pay for the Jeju stonewall fencing farming land is 3,001 won per meter with standard deviation of 511.0 won/m.

• Proceedings of the SAREK Conference
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• 2008.06a
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• pp.214-219
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• 2008

In this study, medium capacity EHP and GHP for air-conditioning a building with a floor area of $1,200\;m^2$ are compared economically. To consider all the factors of initial and operation costs effectively, an annual equal payment method is proposed. For the initial cost, equipment, construction, installation, electric facility, financial subsidy and tax cut are considered. Basic electricity, energy(electricity and gas), space charge, labor, insurance and repair are considered for the operation cost. Under the assumptions made in this study, overall cost of EHP is less than that of GHP. However, different outcome may result if different assumptions are made. This study is useful for performing an economic evaluation of various air-conditioning systems.

• Proceedings of the Korea Information Processing Society Conference
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• 2014.11a
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• pp.507-509
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• 2014

최근 NFC를 이용한 모바일 결제 서비스가 국내 외에서 널리 주목받음에 따라 모바일 결제 시장이 더욱 활성화 될 것으로 전망되고 있다. 이에 따라 지식경제부 기술표준원에서는 2012년 3월 모바일 지급결제를 위한 표준으로 KS X 6928을 제정하였으며, 관련 학계 및 업체들은 안전하고 효율적인 결제 서비스 환경을 위한 다양한 연구를 진행하고 있다. 본 연구에서는 기존 모바일 지급결제 표준이 갖는 문제점을 제시하고 이를 해결하기 위해 기존에 제공되는 표준 기술과 NFC의 Signature RTD를 활용하여 안전한 거래 인증 기법을 제안한다.

• Proceedings of the Korea Information Processing Society Conference
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• 2012.04a
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• pp.639-641
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• 2012

금융 사기로 인한 피해로부터 카드 사용자의 금융 정보를 보호하기 위한 노력이 지속되고 있다. 금융 카드에 대한 보안은 IC 금융 카드의 사용 등의 방법으로 지속적으로 보완되고 향상되어 가고 있다. 이런 시점에 상대적으로 취약한 결재 시스템인 카드 단말기에 대한 보안에 또한 관심을 기울여야 하는 시점이다. 이런 의미로 카드 단말기에 대한 보안성 평가 스킴인 PCI PTS(Payment Card Industry Payment Transaction Security) 요구사항을 소개하고 카드 단말기의 필수적 키인 PEK(PIN Encryption Key)를 주입하는데 있어 PCIPTS 의 논리적 요구사항을 충족하는 방법을 제시한다.

• International Journal of Computer Science & Network Security
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• v.21 no.8
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• pp.317-326
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• 2021

This study aims to examine the factors that affect the intention of merchants to adopt mobile payments in Saudi Arabia. The underlying model used in the study is the technology acceptance model, which includes two factors: perceived ease of use and perceived usefulness. The effects of trust, cost, and compatibility are also examined because these are among the common factors used based on the literature. An online questionnaire was completed by 242 merchants in Saudi Arabia who had already adopted mobile payment services. A significant relationship was identified between perceived usefulness and compatibility in terms of merchants' intention to adopt mobile payment systems, while an insignificant relationship was identified with perceived ease of use, trust, and cost.

• Proceedings of the Korea Multimedia Society Conference
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• 2002.05c
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• pp.381-384
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• 2002

모바일 통신의 수요가 증가하면서 유선상에서의 상거래 형태가 무선으로 변화하고 있다. 무선 매체를 통한 지불 형태가 다양화되고 있으며 무선 거래의 이용률도 증가하고 있는 추세이다. 그러나 무선 통신은 유선 통신에 비하여 보안적 측면에서 공격의 대상이 되기 쉽다. 따라서 본 논문에서는 무선 통신 상에서의 안전한 전자상거래를 위하여 USIM을 이용한 지불 솔루션을 제안한다. USIM은 모바일 기기에 내장되는 스마트 카드 형태의 개인 인중 정보를 저장할 수 있는 모듈로서, 추가적으로 전자화폐의 기능을 담당한다. 제안한 솔루션의 유용성을 증명하기 위하여 Java 기반의 USIM을 이용하여 J2ME 환경상에서 전자화폐 시스템을 구현하였다.

• Korean Journal of Remote Sensing
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• v.39 no.6_1
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• pp.1467-1475
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• 2023

The public-interest direct payment program involves providing direct payments to agricultural producers and rural residents through public funds, premised on performing public functions such as environmental conservation, stable food supply, and maintaining rural communities via agricultural activities. Scientific estimation of crop cultivation areas and production levels is crucial for formulating agricultural policies linked to regulating food supply, which increasingly impacts the national economy. Conducting comprehensive on-site inspections for compliance monitoring of direct payment programs has shown very low efficiency in relation to budget and time. The expansion of areas subject to compliance monitoring and various challenges in on-site inspections necessitate streamlining current monitoring methods and devising effective strategies. As a solution, the application of Remote Sensing technology and spatial information utilization, allowing swift acquisition of necessary information for policies without overall on-site visits, is being discussed as an efficient compliance monitoring method. Therefore, this study evaluated the potential use of remote sensing for improving operational efficiency in monitoring compliance with public-interest direct payment programs. Using satellite images during farming seasons in Gimje and Hapcheon, vegetation indices and spatial variations were utilized to identify cultivated areas, presence of mixed crops, validated against on-site inspection data.