• Journal of KIISE:Databases
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• 제35권5호
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• pp.421-431
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• 2008

Recently XML is becoming a de facto standard for online data exchange between heterogeneous systems and also the research of streaming XML data filtering comes into the spotlight. Since streaming XML data filtering technique needs rapid matching of queries with XML data, it is required that the query processing should be efficiently performed. Until now, most of researches focused only on partial sharing of path expressions or efficient predicate processing and they were work for time and space efficiency. However, if containment relationship between queries is previously calculated and the lowest level query is matched with XML data, we can easily get a result that high level queries can match with the XML data without any other processing. That is, using this containment technique can be another optimal solution for streaming XML data filtering. In this paper, we suggest an efficient XML data filtering based on prime number indexing and containment relationship between queries. Through some experimental results, we present that our suggested method has a better performance than the existing method. All experiments have shown that our method has a more than two times better performance even though each experiment has its own distinct test purpose.

• Journal of KIISE:Databases
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• 제32권4호
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• pp.416-428
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• 2005

In the paper we propose an index method for XML streaming services, where a server broadcasts XML data to a lot of clients in wireless information systems. In order to control the access and tuning time of mobile clients, the proposed method constructs the XML stream through replicating partial index intermixed with parts of data. For this purpose, we propose a two-level tree structure for separating index and XML data into two parts: replicated vs. non-replicated. We analyze the performance of the proposed method with respect to access time and tuning time. With the analysis result, we derive the optimal level value.

• The Journal of Society for e-Business Studies
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• 제5권2호
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• pp.101-112
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• 2000

Costs and times, resources was better decreased than former times because it had been introduced EDI(Electronic Data Interchange) system. Nevertheless, many problems has been raised as before, that is high costs and data re-using, the rapidly changing environment, etc. To solve these problems, it was attempted to introduce XML technology at traditional EDI System. From this point to view, 1 designed and implemented XML/EDI System based on Internet(Internet Messaging System) in this paper. And I selected some services as basic service among many services which is provided at XML/EDI System, that is message sending and message receiving, message retrieval. Other service of client system was composed of MapIn and MapOut module. MapIn Module is to parse the received XML Message and to store XML Data to RDB system. And MapOut module is to generate XML Message after extracting data from RDB system and to transfer XML Message to recipient. Hereby, XML/EDI System(XEDI System) provide document re-using, the various result(output) generation f3r various requirement and directly interface with DB. Therefore, This System(XEDI System) is more various and more flexible than the existing Messaging System that just provide transfer and retrieval service

• Convergence Security Journal
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• 제5권1호
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• pp.1-9
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• 2005

XML is the most common tool for data processing and data transmission in web applications. Policies are extensively used in all online business solutions and it is recognized that abinary decision such as 'yes/no' for access requests is not enough. In this paper, a method is developed to convert policy rules with provisions and obligations in logic formula formats into XML formats. The primary purpose is to enable security policy programmers to write flexible authorization policies in XML and to implement them easily. General syntaxes are defined to specify information for users, objects and actions in XML formats and an XML DTD is developed to specify authorization rules with these three components. To support various security features such as data transcoding and non-repudiation depending on data in addition to access control based on authorization policies, studies for specifying them in XML policy rules will be performed in the future.

• International Journal of Fuzzy Logic and Intelligent Systems
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• 제4권2호
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• pp.129-134
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• 2004

XML is the new universal format for structured documents and data on the World Wide Web. As the Web becomes a major means of disseminating and sharing information and as the amount of XML data increases substantially, there are increased needs to manage and design such XML document in a novel yet efficient way. Moreover a demand of XML Schema(W3C XML Schema Spec.) that verifies XML document becomes increasing recently. However, XML Schema has a weak point for design because of its complication despite of various data and abundant expressiveness. Thus, it is difficult to design a complex document reflecting the usability, global and local facility and ability of expansion. This paper shows a simple way of modeling for XML document using a fundamental means for database design, the Entity-Relationship model. The design from the Entity-Relationship model to XML Schema can not be directly on account of discordance between the two models. So we present some algorithms to generate XML Schema from the Entity-Relationship model. The algorithms produce XML Schema codes using a hierarchical view representation. An important objective of this modeling is to preserve XML Schema's object-oriented concepts such as reusability, global and local ability. In addition to, implementation procedure and evaluation of the proposed design method are described.

• Journal of KIISE:Computing Practices and Letters
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• 제11권4호
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• pp.349-356
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• 2005

At the present day, increasing the web service requirements, along with making XML program easy to create and manage, XML program which progress the research of related technologies enables developer the number of benefits. In order to create XML Documents which include structure that compose documents as well as data, it must have defined about DTD or XML schema that display structure of data. In this study, herewith suggest the design and implementation of method that can be automatically created XML Schema and XML Stylesheet using the web-based XML Tree.

• The Journal of Society for e-Business Studies
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• 제7권3호
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• pp.139-158
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• 2002

Most of companies related to the area of B2B electronic commerce are making their efforts to innovate their existing business process into new designed process. XML-based electronic data interchange has potential to impact on reshaping the traditional EDI systems. This study intends to suggest a prototype of XML-based electronic data interchange using unified modeling language, with a case study applied in Korean automobile industry. In order to accomplish the research objectives, we employed UML as its standard modeling language, In this study, four diagramming techniques such as use case diagram, sequence diagram, class diagram, component diagram among eight modeling techniques are used for analyzing hierarchical business process. As a result of applying UML methodology, we design and develop XML/EDI applications efficiently. Our field test applied to Korean automobile industry shows that data modeling to design XML application using UML is better than existing methodologies in representing object schema of XML data and in extension and interoperability of systems.

• Proceedings of the Korea Contents Association Conference
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• 한국콘텐츠학회 2003년도 춘계종합학술대회논문집
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• pp.393-398
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• 2003

Video which contains the multiple data such as text, images, audio and motion of objects is typical multimedia data. Multimedia retrieval system using XML is essential for efficient rep. of multimedia data. Therefore, multimedia retrieval system for retrieval and structural understanding is needed to retrieve the multimedia data. This Paper Proposes the multimedia retrieval system based on XML Meta-data modeling techniques.

• Journal of Korea Society of Digital Industry and Information Management
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• 제8권4호
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• pp.73-81
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• 2012

Web development and Internet technology development bring many kinds of works to web. This is the main reason why XML, document standard is popular. XML in web can be used to express document template or standard. XML with java can be more powerful and general. For example, XML can be used to transmit data and to print data into the screen using Ajax in JSP(Java Server Page) and to make interfaces in android, which is useful to reduce development cycle. However, XML is not easy to learn for the novice. In this paper, we propose the easy and effective way to reduce the learning curve of XML and to make and use XML documents. For the purpose, we suggest template base XML document generation and we design and implement XML document generator based on Template. XML document generator of template-based provides user interface and layout of XML document. So, users can generate XML document easily and effectively.

• Proceedings of the Korean Information Science Society Conference
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• 한국정보과학회 2004년도 봄 학술발표논문집 Vol.31 No.1 (B)
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• pp.43-45
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• 2004

XML은 인터넷 상에서의 표준 데이터 형식으로 XML 데이터에 대한 구조적 제약 조건들은 DTD나 XML Schema에 정의한다. XML Schema에 유효한 XML 문서는 XML Schema에 정의된 모든 구조적 제약 조건들을 만족해야 하며, 갱신이 발생한 후에도 대응되는 XML Schema에 대해 유효함이 보장되어야 한다. 본 연구는 DBMS에 저장되어 있는 XML Schema에 대해 유효한 XML 데이터를 갱신 할 때 필요한 효율적인 유효 검증 기법을 제안한다. 이 유효 검증 기법에서는 유효 검증 범위를 갱신과 관련된 영역에 한정시키고 갱신 이전에 유효 검증을 수행하여 유효 여부를 판단한다. 또한 본 연구에서는 유효 검증을 위한 유효 검증 제약 조건들과 XML Schema문서의 특성을 분석하여 유효 검증 시 필요한 스키마 정보만을 효율적으로 추출할 수 있는 XML Schema 저장 방법 및 그에 따른 스키마 정보 추출 방법을 제안하고 실험을 통해 그 성능을 보인다.