• Proceedings of the Korea Information Assurance Society Conference
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• 2004.05a
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• pp.125-130
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• 2004

The Internet is aggregate of trustless networks essentially. Because the Internet is very difficult to control flowing of information, taking advantage of enough sporadic resource, security problem that can protect internal important stock from the Internet is risen seriously. Recently, virus accident and generation rate about system intrusion that happen become much higher and various than past. On these time, is progressing researcher for invasion cutout to keep away illegal act vigorouslyand do continuous development. In this paper, reporting administrator log information about invader's illegal act depending on XML format form, and I wished to solve problem that happen in administration side developing invasion interception system that can control to remote.

• Journal of Digital Contents Society
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• v.5 no.4
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• pp.283-288
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• 2004

This paper presents research in intelligent massenger technique for Cyber University to support accessing university database. Proposed techniques enables better communication between students and professons by using intelligent messenger. Intranet based massenger support simple message transfer and multimedia chatting service within homogeneous network or members in same group. Using niversity database it provide personalize information for each different user demand needs and through managing technique user could effectively organize members of group. To embody intelligent massenger, JMF(Java Media Frame Work), RMI(Remote Method Invocation), XML techniques were proposed and in result constructing effective community.

• Journal of KIISE:Computing Practices and Letters
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• v.14 no.7
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• pp.680-693
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• 2008

Recent studies on XML filtering assume that all data sources follow a single global schema defined in a filtering system. However, beyond this simple assumption, a filtering system can provide a service that allows data publishers to have their own schema; hence, the data sources will become heterogeneous. The number of data sources is expected to be large in a filtering system and the data sources are frequently published, updated, and disappeared, that is, dynamic. In this paper, we introduce implementing a simple and efficient XPath query translation method for such a dynamic environment. The method is especially targeted for a query which is composed based only on users' knowledge and experience without a graphical guidance of the global schema. When a user queries a large number of heterogeneous data, there is a high possibility that the query is not consistent with the same local schema assumed by the user. Our query translation method also supports a function for this problem. Some experimental results for query translation performance have shown that our method has reasonable performance, and is more practical than the existing method.

• The Journal of Information Technology
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• v.4 no.1
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• pp.125-139
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• 2001

EDI(Electronic Data Interchange) works by providing a collection of standard message formats and element dictionary in a simple way for businesses to exchange data via any electronic messaging service. Open-edi is electronic data interchange among autonomous parties using public standards and aiming towards interoperability over time, business sectors, information technology and data types. The number of Internet services using XML/EDI has grown rapidly since it is easily expansible and exchangeable. To use this service, the client does not have to install EDI S/W but only needs internet browser. Consequently, it became much easier and faster to handle the trading process in an office. eBusiness SML (extensible markup language) electronic data interchange. eXedi is the service that realizes B2B of XML/EDI. eXedi can be used easily in small and medium sized companies. Companies in any place can access to eXedi using the existing Internet connection. XML/EDI provides a standard framework to exchange different types of data -- for example, an invoice, healthcare claim, project status -- so that the information be it in a transaction, exchanged via an Application Program Interface (API), web automation, database portal, catalog, a workflow document or message can be searched, decoded, manipulated, and displayed consistently and correctly by first implementing EDI dictionaries and extending our vocabulary via on-line repositories to include our business language, rules and objects.

• The Journal of Korean Association of Computer Education
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• v.8 no.4
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• pp.107-114
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• 2005

While a user is using an adaptive hypermedia system, the user can also use an external application. If the user accesses the information which is related to the contents provided by the adaptive hypermedia system, it can affect a user profile that contains the information about the knowledge or interests of the user. However, the adaptive hypermedia system understands user's behavior based on whether a page is accessed or not and it is difficult for the system to recognize user's behavior that can occur outside the adaptive hypermedia system. In this paper, we propose an approach that can detect user's behavior using a message hooking mechanism so that both user's behavior inside an adaptive hypermedia system and behaviors that occur outside the system can be reflected in a user profile. We analyze user events using a hooking mechanism and update a user profile using an XML parser.

• Journal of KIISE:Databases
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• v.31 no.3
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• pp.232-242
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• 2004

Metadata is a general notion of data about data to improve data sharing and exchanging by definitely describing meaning and representation of data. However, metadata has been created in various ways and It caused another kind of heterogeneity problem named metadata heterogeneity problem. Recently, the research on metadata gateway approach that allows metadata heterogeneity is being more actively progressed. However, the existing commercialized systems that have been implemented with the metadata gateway approach are dependent on a metadata schema. In this paper, we propose a message conversion system which separates the mapping information from the mapping rules between heterogeneous metadata schemas. The proposed system dynamically manages standardized data elements by applying ISO/IEC l1179. Therefore, the proposed system provides the set of standard data elements to create consistently metadata of new databases and provides a fundamental resolution to the metadata heterogeneity problem.

• The Journal of Natural Sciences
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• v.19 no.1
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• pp.1-10
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• 2008

A SMS Moodle plug-in block was developed for the Pai-Chai Moodle virtual learning environment. Professors can send SMS messages directly from their courses by using the SMS block. NuSOAP open source web service library was utilized for XML SOAP based message transfer.

• 한국디지털정책학회:학술대회논문집
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• 2005.06a
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• pp.287-308
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• 2005

The purpose of this paper is to review the trend and roadmap of standardization for e-Trade. As a survival strategy in this rapidly changing global competition environment, domestic and global e-Trade network should be harmonized and interconnected, which requires multilateral or regional cooperation to set relevant inter-operable infrastructure. For this, standardization for e-Trade message and communication is critical success factor. Korea has been an early adopter of international e-Trade standards like UN/EDIFACT and ebXML. Based on the overall knowledge and experiences of e-Trade projects, Korea can take initiatives in the creation of global e-Trade through the harmonization and interconnection of other countries.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2001.10a
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• pp.330-333
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• 2001

his paper describes the framework of integrating the business processes of different organizations through the interoperability of workflow management systems. In particular, this framework can be applied to developing B2B systems, in which each trade partner has its own heterogeneous workflow system on the Internet. We propose an approach to implementing an interoperable workflow system which can be integrated with other heterogeneous workflow systems through the four scenarios suggested by WfMC(Workflow Management Coalition), and we developed XML message-based prototype systems, which using SOAP(Simple Object Access Protocol), is applicable to standard e-business framework such as ebXML.

• Proceedings of the Korea Information Processing Society Conference
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• 2002.04a
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• pp.315-318
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• 2002

다양한 어플리케이션 간의 분산 객체를 사용하고자 할 때 지금까지는 DCOM/CORBA bridge를 사용하여 문제를 해결해 왔다. 그러나 이러한 분산 객체 프로토콜을 인트라넷이 아닌 인터넷에서 사용할 때는 임의로 할당받은 프로토콜을 사용하여 상호접근하게 되므로 보안상의 문제를 갖게 된다. 따라서 이러한 문제를 해결하기 위하여 방화벽을 설치한다. 하지만 여러 조건을 바탕으로 들어오는 트래픽을 블로킹함으로써 효과적인 분산 객체 프로토콜을 사용하는데 또한 문제를 갖게 된다. 본 논문에서는 기존의 인터넷 인프라스트럭처에 그대로 사용할 수 있고, 이기종 환경에 관계없이 메시지를 교환할 수 있는 SOAP(Simple Object Access Protocol)에 대한 연구와 그 적용 사례로 인터넷 서점을 구현하여 제시하였다.