• Journal of the Korea Society of Computer and Information
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• v.14 no.9
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• pp.179-187
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• 2009

The national boundary's meanings turn to weak according to advent of Global enterprises. The place for design a product and marketing are separated to actual market. R&D is to the area where the knowledge activity is well, and low skilful product assembling is to the place the low wage is acceptable. It shows that the importance of net work structure. From early 90's, production system is diversified to markets where with the consumer as the central as multifarious items and creation new demands through consumer's participation into manufacturing process. This phenomenon show that logistics structures adapt to demand of technical variation, and the development of e-business with VAN(:value added network) and EDI(:Electronic data interchange) prove it. This study tried to analyze utilitarian assay about systems those land, sea, air logistics through documents research, and this study also present the direction of logistics system of airline company and goal of development on the based to the model of domestic airline company accordingly.

• Proceedings of the CALSEC Conference
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• 2005.03a
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• pp.149-154
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• 2005

Recently, lots of EDI-VAN (Electronic Data Interchange-Value Added Network) companies challenge to convert their business systems into Web-based e-business frameworks to avoid high cost and closed structure of EDI system. This research proposes e-Transformation strategies for EDI-VAN companies to adopt Web-based e-business standard frameworks such as ebXML (e-business using XML) and RosettaNet. Four migration strategies for EDI companies are presented, and their properties are described in detail. Transformation procedures of two representative strategies are also provided fur the convenience of medium-sized companies. The result of this work can be used as a practical guideline for EDI companies to develop there own transformation strategy suitable to its scale and capability, while minimizing the impacts on the pre-existing business processes.

• Proceedings of the Korean Information Science Society Conference
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• 2001.10c
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• pp.703-705
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• 2001

전통 EDI(Electronic Data Interchange) 문서는 VAN(Value Added Network) 전용망을 통하여 EDI 서비스를 하였다. 하지만, 이것은 실시간(real-time)으로 문서를 처리하는 방식보다 주로 배치(batch)방식으로 한꺼번에 문서를 처리하였으며 전용 소프트웨 어를 사용함으로써 새로운 문서를 처리할때마다 새 문서에 대한 정보를 등록하고 소프트웨어를 다시 설치 해야하는 불편함도 있었다. 기존의 전통 EDI 문서는 VAN을 통하여 처리하는 방식이었으나 현재는 인터넷에서 EDI 문서를 볼 수 있도록 하기 위해 XML(extensible Markup Language)을 이용하고 있다. 인터넷기반의 웹 브라우저 상에서 볼 수 있는 XML/EDI 구현에 힘입어 여러 문서로 분리되어진 EDI 문서를 XLink의 개념을 이용하여 문서의 삽입, 삭제 기능과 이러한 문서를 통합하여 하나의 문서로 데이터베이스에 저장할 수 있는 방법에 관하여 연구하고자 한다.

• Proceedings of the Korea Inteligent Information System Society Conference
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• 2001.01a
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• pp.45-49
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• 2001

Korean government and companies have given a lot of their efforts to exchange electronic documents between themselves and their partners. As the results of them. Korean EDI standards were made by Korean EDIFACT Committee and the standards have been used by companies and governmental organization in Korea. However, Korean export customs clearance EDI system is based on VAN(Value Added Network) and one VAN company ha monopolistic right to relay EDI documents to Korean Customs Service. Therefor is leads to a lot of problems such as inconvenient software, expensive transmission fee and the difficulty of connection with the in-house systems of user companies. To solve these problems, a few good solutions and systems have been suggested and one of them is the Internet EDI. we will suggest a new export customs clearance EDI system running on the Web. This system is basically an Internet EDI system, but we have developed this system using XML instead of HTML, XML is a new markup language with merit such as isolating data from style of documents. This system consists of 7 modules, schema/style/template management, XML/EDI document management, XML/EDI transformation, EDI transmission, certification management and log management. Also this system can be used with other traditional EDI systems that have UN/EDIFACT standards. We will discuss the advantages and disadvantages of XML/EDI system for customs clearance. The development of this system will be a leading study for XML/EDI standards in export clearance EDI system.

• IE interfaces
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• v.10 no.3
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• pp.55-62
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• 1997

Among the driving methods of CALS, Electronic Data Interchange (EDI), the pivot of procurement and logistics, is becoming the standard of data interchange. In this article, we examine the standard, growth, and status of EDI, and present a scheme to make it available via Internet that grow to be a standardized network, in comparison with a method to use a Value Added Network(VAN). So we studied an implementation of EDI system to exchange and process the business intra-works in order to integrate it into Intranet environment. As well, we present a client/server model running under Intranet environment, and a system with a format server to share the load of server and client. To do this, we list the functions and requirements of EDI system, connect a database to the Intranet, and develop applications using $Java^{TM}$.

• The Journal of Information Systems
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• v.12 no.1
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• pp.87-116
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• 2003

One of the important applications for business-to-business electronic commerce is in procurement and inventory management using electronic data interchange(EDI). Using online catalogs and approved supplier lists, firms can easily create requisitions and purchasing documents. The emerging trend in EDI technology is changed from VAN(Value Added Network) based EDI to XML based EDI. This paper intends to suggest a component-based XML/EDI system using Unified Modeling Language(UML), as an application system for automobile part industry. Applying component based XML/EDI systems designed with UML methodology, we analyzed the workflow and the document on procurement process between trading partners and implemented a prototype of efficient XML/EDI system, as a surrogate of existing VAN/EDI. The result of applying object-oriented CBD(Component Based Development) technique is to minimize the risk of life cycle and facilitate the reuse of software as mentioned to limitation of information engineering methodology. It enables the interoperability with corporate legacy systems such as ERP(Enterprise Resource Planning), SCM(Supply Chain Management). This system proposes a solution to apply analysis phase and design phase in implementation of XML/EDI system. The implementation of XML/EDI system using CBD shows the ease of use in software reuse and the interoperability with corporate internal information system. The purchasing department with XML/EDI system can electronically communicate purchase orders, delivery schedules to external suppliers and interoperate with other application systems.

• The Journal of Society for e-Business Studies
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• v.6 no.1
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• pp.83-99
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• 2001

The EDI system supports the working environment which can exchange the standardized document through the each agreed communication method. Traditional EDI system is complicated to be implemented and needed high cost te using the system because of the specific VAN(Value Added Network). This Paper proposes the XML/EDI system using the web-based distributed object and proposed the component 'AnySchema', as it makes be able to use legacy Database for EDI user. This XML/EDI system exchanges the XML documents through the Internet, so proposed low cost to support the system. Also, by using the XML document, it doesn't need EDI specific software and easy to exchange data between different systems. This system is implemented by using Java, as platform-independent.

• Proceedings of the Korean Information Science Society Conference
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• 2004.10a
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• pp.391-393
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• 2004

네트워크의 발전과 함께 인터넷을 통한 기업 활동이 점차로 증가하면서 기업들간(B2B)에 실시간 데이터를 안전하게 서비스하기 위하여 여러 개의 시스템이 거미줄처럼 연계되고 있다. 전통적으로 기업들간에는 EOI(Electronic Data Interchange) 시스템과 독자적인 부가가치 통신(VAN, Value-Added Network)을 통한 데이터 교환방식을 사용했으나, 이 모델은 초기비용이 비쌀 뿐만 아니라, 데이터를 실시간 이벤트가 아닌 일괄작업(batch)으로 처리하였다. 그러나, 현재 B2B 간의 데이터 교환 및 상호 작용 방법으로 인터넷, XML, 그리고 메시징 시스템을 사용하고 있으며 특히, 메시징 시스템은 소규모의 시스템이 B2B에 참여하거나 탈퇴하는 비즈니스 작업의 어려움을 덜어준다. 본 논문에서는 인터넷상에서 이루어지는 B2B간의 데이터 교환 및 상호 작용을 위하여 메시징 시스템중 대표적인 JMS를 기반으로 안전한 데이터 교환 모델을 설계 및 구현한다. 따라서, 본 논문에서 제시하는 메시징 모델을 B2B 시스템에 적용하면 기업들간 안전한 메시지 전송을 보장할 수 있다.

• Convergence Security Journal
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• v.16 no.7
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• pp.13-19
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• 2016

Recently one of the main keywords representing of Korea is O2O The O2O market is an intersection of online commerce and offline commerce. The spread and popularization of smartphones transform payment market environment from online-based(PC) to mobile-based(Smartphone) which enable payment service expanses to on/off-line both markets. Due to this movement, data security is mo vulnerable than online-based payment service but the preference of serviceability, security threat becomes bigger.O2O service expansion is now at the stage of beginning with the limited influence, but could affect to the establishment of on/off line payment system of VAN and PG in the future. However, in the moment, the motivation to destruct the system is still weak. In this research, the possibility of Non-PG mobile payment service was suggested as a new way of mobile payment service by using PG. With suggestion, it could eliminate the issues of payment method beforehand and provide low fee to merchants.

• Journal of electromagnetic engineering and science
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• v.17 no.4
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• pp.221-227
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• 2017

A new approach to designing a broadband and highly efficient class-E power amplifier based on nonlinear shunt capacitance analysis is proposed. The nonlinear shunt capacitance method accurately extracts optimum class-E power amplifier parameters, including an external shunt capacitance and an output impedance, at different frequencies. The dependence of the former parameter on the frequency is considered to select an optimal value of external shunt capacitor. Then, upon determining the latter parameter, an output matching network is optimized to obtain the highest efficiency across the bandwidth of interest. An analytical approach is presented to design the broadband class-E power amplifier of a MOSFET transistor. The proposed method is experimentally verified by a 140-170 MHz class-E power amplifier design with maximum added power efficiency of 82% and output power of 34 dBm.