• The KIPS Transactions:PartD
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• v.9D no.4
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• pp.697-702
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• 2002

In the Internet based information technology community, the exchange of product information is more activated in e-commerce of B2C and B2B. We have suggested a XML based unified product description model with which all kinds of product informations can be represented. This model also has a feature to avoid duplication of the product information. In this paper, we will implement this model using Java Beans and EJB (Enterprise Java Beans) of the Java component technology, and then test this system over several products on the web. finally, we will analyze the effect due to the removal of the information duplication.

• Proceedings of the IEEK Conference
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• 2001.06c
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• pp.195-198
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• 2001

Components are abstractions of system level computational entities, connectors are abstractions of component interrelationships. we propose connectors as transferable abstractions of system level component interconnection and inter-operation. Connectors are architectural abstractions of component coordination in the abstract architecture of a system only. Connectors describe a collaboration rationale for component adaptations, which are then modeled in the concrete architecture of a system.

• Journal of KIISE:Computing Practices and Letters
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• v.7 no.5
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• pp.429-439
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• 2001

EJB(Enterprise JavaBeans), the cornerstone for J2EE(Java$^{TM}$ 2 Platform, Enterprise Edition), is a server-side component standard model. Recently, development of supporting tool for this component model becomes important and there are many tools for developing EJB. In this paper, we purpose to design Enterprise Beans by component model, and perform design and implementation of code generator which generates skeleton code for Enterprise Beans automatically. We also implement EJB deployer for deploying these on application server. The code generator can make a JAR file automatically. This JAR file is deployed on application server by EJB specification as well. Using this tool, developer can create and deploy of Enterprise Beans more fast and exactly.y.

• Journal of The Korean Association of Information Education
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• v.9 no.1
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• pp.49-55
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• 2005

Web-Based instruction system embodied according to traditional process until present. But, these method have inefficiency in system development and give trouble of operation and administration after development. Therefore, It need induction of component based development in Web-Based instruction system. In this research, I constructed score processing system by component composition. I embodied component by Java Beans and used C2 architecture at the composition method. In this result, I shown in application possibility of component based development in Web-Based instruction system as to construct whole score processing system through composition of each component.

• The Journal of the Korea Contents Association
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• v.3 no.1
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• pp.39-46
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• 2003

Electronic commerce part is changing rapidly for more efficient service support according to customer's inclination and request which pass over the time and space. That is, It was considered in customer's side that process and management of content by various articles, and component base development was considered in side of developer and administrator to operate this effectively. So, electronic commerce system need component based development that can be coped with efficient and active it and goods contents management to customers various inclination. Thus, in this research we implemented goods purchase system based on EJB(Enterprise Java Beans) of sewer side component mode. That is, each function part from goods contents to purchase is implemented to component which is independent execution module. Accordingly, component which is independence function part can cope actively in process of contents that change variously.

• Asia pacific journal of information systems
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• v.30 no.3
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• pp.457-496
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• 2020

This study aims to extensively analyze the performance of various Machine Learning (ML) techniques for predicting version to version change-proneness of source code Java files. 17 object-oriented metrics have been utilized in this work for predicting change-prone files using 31 ML techniques and the framework proposed has been implemented on various consecutive releases of two Java-based software projects available as plug-ins. 10-fold and inter-release validation methods have been employed to validate the models and statistical tests provide supplementary information regarding the reliability and significance of the results. The results of experiments conducted in this article indicate that the ML techniques perform differently under the different validation settings. The results also confirm the proficiency of the selected ML techniques in lieu of developing change-proneness prediction models which could aid the software engineers in the initial stages of software development for classifying change-prone Java files of a software, in turn aiding in the trend estimation of change-proneness over future versions.

• Journal of KIISE:Software and Applications
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• v.33 no.6
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• pp.539-549
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• 2006

Component-Based Development (CBD) has emerged as a new effective technology that reduces development cost and time-to-market by assembling reusable components in developing software. The degree of conformance to standards and common features in a domain largely determines the reusability of components. In addition, variability within commonality should also be modeled and customization mechanism for the variability should be designed into components. Enterprise JavaBeans (EJB) is considered a most suitable environment for implementing components. However. the reusability of EJB is limited because EJB does not have built-in variability design mechanisms. In this paper, we present efficient variability design techniques for implementing components in EJB. We propose a method to customize the variability of EJB-based components by applying three variability design mechanisms; selection, plug-in, and external profile. And we elaborate the suitable situations where each variability design mechanism can be applied, and conduct a technical comparison to other approaches available.

• Journal of The Korean Association of Information Education
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• v.7 no.3
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• pp.309-317
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• 2003

Web-Based Education System changed from one side transmission of information to bi-directional information exchange with user. Accordingly, It had been implemented on 3-tier models with each function separation using database and server side language such as CGI (Common Gateway Interface). But, The CBSD(Component Based Software Development) techniques receives many interests recently, and efforts to apply this are appearing. Thus, In this research implemented component base question solving system. For this, I used EJB(Enterprise Java Beans) that is web server component model, and used Petri-Net for typical specification about message flow between components.

• Proceedings of the Korea Multimedia Society Conference
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• 2000.11a
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• pp.107-112
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• 2000

최근 들어 급속한 인터넷 사이트와 이용자들의 증가로 인해 많은 정보 제공 사이트들은 이용자들의 요구에 상응하는 정보를 제공하기 위하여 보다 이해하기 쉬운 그림, 도표, 차트 등의 그래픽으로 처리된 정보들을 생성하고 관리한다. 본 연구에서는 이용자들의 요구에 부합되며 인터넷 상에서 원격 관리가 가능한 실시간 차트서버와 차트 클라이언트, Java application 내부에서 처리되는 java chart component 등을 제안하고 설계 및 구현한다.

• Journal of the Korea Institute of Information and Communication Engineering
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• v.7 no.5
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• pp.949-954
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• 2003

In this study, Automatic Speech Recognition Application System is designed and implemented to realize transformation from present GUI-centered web services to VUI-centered web service. Due to ASP's restriction with web in reusability and portability, in this study, Automatic Speech Recognition Application System with Javabeans Component Architecture is devised and studied. Also the voice web browsing which is able to transfer voice and graphic information simultaneously is studied using Remote AWT(Abstract Windows Toolkit).