• Convergence Security Journal
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• v.6 no.2
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• pp.43-51
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• 2006

The existing electronic transaction protocol uses a cryptography algorithm that is not suitable for mobile environment because of limited memory and process ability. In this paper, we propose an efficient transaction protocol suitable for mobile embedded system. The proposed protocol reduces computation and process time by using ID-based cryptography algorithm and ECC (elliptic curve cryptosystem). It uses vendor authentication only in the first transaction, and from the second transaction, it requires transaction after authentication with session created by applying ECC technique. Therefore, the creation number of authentication for the vendor can be reduced from n to one. And it reduces process time because it provides the same security with 160 bits as with 1024 bits of RSA.

• The Journal of the Korea institute of electronic communication sciences
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• v.8 no.3
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• pp.479-486
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• 2013

This study aims to survey the influence of the internet-based real estate transaction systems used by the common people on their decision-making for buying the real estate. That is, the purpose of this study is to review how the system for selection of the real estate has influence on the decision-making for buying the real estate, by exerting influence on the customer-satisfaction. Also, I want to present a scheme for the more effective internet-based real estate transaction system so that the real estate agents may grasp the on-line real estate transaction system and understand the intention of the customers for buying, and thereby establish the active marketing strategy.

• Knowledge Management Research
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• v.21 no.1
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• pp.117-136
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• 2020

In the studies for the recommender systems which solve the information overload problem of users, the use of transactional data has been continuously tried. Especially, because the firms can easily obtain transactional data along with the development of IoT technologies, transaction-based recommender systems are recently used in various areas. However, the use of transactional data has limitations that it is hard to reflect domain knowledge and they do not directly show user preferences for individual items. Therefore, in this study, we propose a method applying the word embedding in the transaction-based recommender system to reflect preference differences among users and domain knowledge. Our approach is based on SAR, which shows high performance in the recommender systems, and we improved its components by using FastText, one of the word embedding techniques. Experimental results show that the reflection of domain knowledge and preference difference has a significant effect on the performance of recommender systems. Therefore, we expect our study to contribute to the improvement of the transaction-based recommender systems and to suggest the expansion of data used in the recommender system.

• Journal of Korean Society of Archives and Records Management
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• v.13 no.3
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• pp.231-254
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• 2013

The purpose of this study is to survey the problems of the record appraisal system based on value of "Business Transaction (Danwi-gwaje)" and suggest a way to solve the problems in Korean government agencies. This study begins with analyzing the many negative cases of creating wrong "Business Transaction" profiles and making discordances between value of records and value of transaction, through data mainly from focused group interviews of six record professionals in central government agencies. It concludes with suggesting a new records appraisal model that assigns the retention periods to multiple entities to solve the problems of the current record appraisal system.

• Journal of KIISE:Software and Applications
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• v.26 no.8
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• pp.946-954
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• 1999

웹의 등장으로 전자 업무 처리는 급격한 성장을 보여왔다. 많은 업계에서는 업무 처리에 있어 핵심이 되는 트랜잭션을 웹에서 처리하기 위한 시스템 개발에 많은 노력을 기울여왔다. 그러나 대부분의 웹 트랜잭션 연구는 주로 CGI 방식의 트랜잭션 처리 성능의 한계를 극복하거나, 여러 HTTP 요청간의 상태 유지 방법 또는 시스템의 확장성 등에 대해 연구가 집중된 반면, 부적합한 웹 환경으로 유발되는 시스템의 일관성 손실에 대해서는 많은 관심을 받지 못했다.본 논문에서는 웹 상에서 신뢰성 있는 트랜잭션을 처리하는 경우 발생되는 세 가지 문제점을 지적하고, 이를 막기 위해 웹 트랜잭션 처리 시스템인 WebTP에서 제공하는 해결책을 제안한다. 제안한 해결책은 쿠키 로깅, 웹 페이지 로깅, 그리고 일방적으로 철회된 트랜잭션의 상태를 유지하는 기법을 근간으로 한다. 또한 제안된 방법은 유사 구조의 타 웹 트랜잭션 처리 시스템에서도 적용 가능하다.Abstract Electronic business processing has drastically grown since the advent of the World Wide Web. As transaction processing is at heart of business processing, many companies have been interested in transaction processing on the Web. However, little attention has been paid to supporting consistent transaction processing on the Web, while most of the work has been focused on performance enhancement, processing multiple HTTP requests in a single context, and scalability.This paper identifies three problems in consistent transaction processing on the Web, and proposes corresponding solutions for each problem. The results are implemented in the Web transaction processing system WebTP. These solutions are based on cookie logging, Web page logging and keeping information for unilaterally aborted transactions. The solutions proposed in this paper also can be applied to other Web transaction processing system of similar architecture.

• JSTS:Journal of Semiconductor Technology and Science
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• v.2 no.2
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• pp.132-140
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• 2002

This paper presents an ARM-based SOC bus transaction verification IP and the usage experiences in SOC designs. The verification IP is an AMBA AHB protocol checker, which captures legal AHB transactions in FSM-style signal sequence checking routines. This checker can be considered as a reusable verification IP since it does not change unless the bus protocol changes. Our AHB protocol checker is designed to be scalable to any number of AHB masters and reusable for various AMBA-based SOC designs. The keys to the scalability and the reusability are Object-Oriented Programming (OOP), virtual port, and bind operation. This paper describes how OOP, virtual port, and bind features are used to implement AHB protocol checker. Using the AHB protocol checker, an AHB simulation monitor is constructed. The monitor checks the legal bus arbitration and detects the first cycle of an AHB transaction. Then it calls AHB protocol checker to check the expected AHB signal sequences. We integrate the AHB bus monitor into Verilog simulation environment to replace time-consuming visual waveform inspection, and it allows us to find design bugs quickly. This paper also discusses AMBA AHB bus transaction coverage metrics and AHB transaction coverage analysis. Test programs for five AHB masters of an SOC, four channel DMAs and a host interface unit are executed and transaction coverage for DMA verification is collected during simulation. These coverage results can be used to determine the weak point of test programs in terms of the number of bus transactions occurred and guide to improve the quality of the test programs. Also, the coverage results can be used to obtain bus utilization statistics since the bus cycles occupied by each AHB master can be obtained.

• Journal of the Institute of Electronics Engineers of Korea CI
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• v.41 no.5
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• pp.25-32
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• 2004

An anti-fraud system that utilizes association rules of fraud as well as AFS (Anti Fraud System) for credit card payments in e-commerce is proposed. The association rules are found by applying the data mining algorithm to millions of transaction records that have been generated as a result of orders on goods through the Internet. When a customer begins to process an order by using transaction components of a secure messaging protocol, the degree of risk for the transaction is assessed by using the found rules. More credit information will be requested or the transaction is rejected if it is interpreted as risky.

• Journal of Korea Technology Innovation Society
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• v.2 no.2
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• pp.233-248
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• 1999

For the last several decades, it has been recognized that technology is a key factor in becoming an ADC and an advanced firm. So many countries and individual firms have been increasing investments on technology development. Especially LDCs including Korea choose technology transfer and transaction as an important alternative of their own technology development. To activate technology transaction and transfer, it is necessary to establish an technology transaction system, namely a Technomart that will make good connections between technology suppliers and technology buyers, and efficient functional linkages of supporting infrastructures including organizations and laws related with technology transactions. Therefore this study reviewed both the characteristics of technology transfer and transaction and a conceptual structure of a Technomart through a literature review. And then, the study analyzed the Technomart related laws including an intellectual property right, a copyright, a patent right, and electric transaction related laws. In conclusion the study proposed the development directions of the Technomart related laws.

• Journal of Distribution Science
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• v.18 no.5
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• pp.99-109
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• 2020

Purpose: This study aims to develop and empirically analyze a research model in order to comprehend the relationship among the service quality of market-wholesaler system, re-transaction intention, and recommendation intention of forwarder. Further, we suggest new six factors reflecting the service quality of market-wholesaler system and highlight market expansion of forwarder as a mechanism in the relationship. Research design, data and methodology: The authors developed the new scales measuring the service quality of market-wholesaler system (i.e. trade price, price fluctuation, payment receipt, settlement period, trade information, and customer service) and conducted a cross-sectional survey for 439 forwarders in a wholesale market. And then we performed a series of path analyses to test hypotheses. The hypotheses are as follows. [H1] The service quality of market-wholesaler system will positively affect forwarders' market expansion, [H2] Forwarders' market expansion will positively affect their re-transaction intention, [H3] Forwarders' market expansion will positively affect their recommendation intention, [H4] Forwarders' re-transaction intention will positively affect their recommendation intention. Results: The results showed that all the six factors for the service quality of market-wholesaler system were positively related to market expansion of forwarders. There was a differential effectiveness in the six factors of the service quality. More specifically, the positive effect of customer service factor was the strongest on market expansion of forwarders. And the respective effects of trade price, price fluctuation, settlement period, trade information factors were followed in order. The positive effect of payment receipt factor was the weakest on market expansion of forwarders. Also, market expansion of forwarders was positively related to their re-transaction intention and recommendation intention. Furthermore, market expansion of forwarders was indirectly related to recommendation intention through re-transaction intention as well. Conclusions: The research findings provide important theoretical and practical implications. This study is the first to attempt to test the perception of forwarders for the service quality of market-wholesaler system by developing and using the new scales. Also, there has been a sharp controversy about the effectiveness of market-wholesaler system. The findings support that market-wholesaler system would be activated by empirically verifying the effectiveness of the service quality on the various outcomes.

• International Commerce and Information Review
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• v.7 no.3
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• pp.97-111
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• 2005

This paper object is application of electronic Customers Relationship Management(e-CRM) for buyer This paper focuses on the possibility of the adaption of Escrow system in Local L/C opening and payment. The purposes of this study are to obtain efficiency and stability of Local L/C and to provide opportunity to accept trust of the transaction parties. The results of the study show that Escrow system is recommended when Local L/C opened, because Escrow system has the following merits: (1) Open system of internet can be used to Local L/C process. (2) Transaction process of Escrow system is very simple. (3) One stop transaction can be applied to all the process of local L/C.