• Journal of Digital Convergence
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• v.10 no.9
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• pp.123-136
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• 2012

Web applications are widely used by the development of the Internet, but there are no separate audit model for a web-based information systems. Information business has a wide variety of characteristics. So, web-based information system audit model is needed. Therefore, a web-based information system audit model was proposed to enhance the effectiveness of audit and to increase the quality. Audit check lists were applied based on three sets of existing information audit check framework. An audit point of time was defined as analysis, design, and implementation. An audit domain was defined as contents, design, and process. Moreover, audit viewpoint and inspection standards were defined by setting standards of process, product, and performance. Moreover, this paper proposes differences between an existing model of information system development methodology and web-based information system. It also deduced audit checklists according to audit domains for web-based information system audit. The deduced audit checklists were verified for its suitability by conducting surveys, and the modified audit inspection model, in which the deduced audit checklists were applied, was proposed.

• The KIPS Transactions:PartD
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• v.12D no.4 s.100
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• pp.569-582
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• 2005

As information and business communication via Internet are growing up, web-based software is wide spread and more important on the viewpoint of software qualify than stand-alone. Research on verification of web content links and web-based Program was tried, but has short on covering various types of web based software and making experiments to be applied in real testing practice. This paper suggests a modeling technique to be applied to dynamic and various types of web-based software. First, it identifies each elements consisting of web-based software and then construct a model of Object Control Flow Graph and Object Relationship Diagram. We can generate test cases covering all test paths of ORD or invoking key points test route. Suggested modeling method and test case selection technique are verified by applying five types of web-based software and compared with other web-based test techniques.

• The Journal of Society for e-Business Studies
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• v.10 no.3
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• pp.111-134
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• 2005

Knowledge management is a core factor to achieve competitive advantage and improve the business performance. New information technology is also a core factor enabling the innovation of knowledge management. Semantic Web of which the goal is to realize machine-processable Web can't help affecting the knowledge management. Therefore, we empirically analyze the relationship between user's dissatisfaction and barriers or limitations of knowledge management and present methods allowing Semantic Web to overcome the limitations and to support knowledge management processes. Based on a questionnaire survey of 222 respondents, we found that the limitations of system qualities such as user inconvenience of knowledge management systems, search and integration limitations, and the limitations of knowledge qualities such as inappropriateness and untrust significantly affected the user dissatisfaction of knowledge management systems. Finally, we suggest a conceptual model of knowledge management systems of which components are resources, metadata, ontologies, and user & query layers.

• Journal of Information Technology and Architecture
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• v.10 no.4
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• pp.537-552
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• 2013

Software-as-a-Service (SaaS) has led to paradigm shifts in the information management area by combining it with SOA and Mashup. System developers now have more chances to access various high-quality functions through API opened on the web. But external resources are controlled by service providers so that it raises the component's uncertainty in system management which is related to external resources. In the cloud environment, components related to external resources causes negative effects on system's maintainability by making them dependant on service providers. This study proposes a way to enhance maintainability by using stable external resources. For this work, we suggest the N+1-tier model in which an external resource tier is added to the N-tier model. After that, we analyze how adding an external resource tier affects the decreasing complexity of maintainability and improving maintainability on web application.

• Journal of Internet of Things and Convergence
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• v.9 no.3
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• pp.1-6
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• 2023

One of the economical ways to satisfy the quality of service desired by the user in a web service environment is to adjust the size of the object. To this end, this study finds the maximum size of objects that satisfy this constraint when the mean response time is given below an arbitrary threshold for quality of service. It can be inferred that in the steady state of system, the mean response time in the deterministic model by using the round-robin will be the same as that of the queueing model following the general distribution. Based on this, analytical formulas and procedures for finding the maximum object size are obtained. As a service distribution of web traffic, the Pareto distribution is appropriate, so the maximum object size is computed by applying the M/G(Pareto)/1 model and the M/G/1/PS model using exponential distribution as computational experience. Performance evaluation through numerical calculation shows that as the shape parameter in the Pareto distribution increases, the M/G(Pareto)/1 model and M/G/1/PS model have the same maximum object size. The results of this study can be used to environments where objects can be sized for economical web service control.

• Journal of The Korean Association of Information Education
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• v.5 no.2
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• pp.258-267
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• 2001

In this paper, We have developed the evaluation standards for web coursewares which can properly reflected each class-type teaching and learning theories, type of learning and characteristics of learners. We proved the proper of content, reliability and objectivity. Also, We have designed and developed the evaluation tool which runs on the web. The evaluation tools for the web coursewares developed in this paper presents the direction and standard to develop the web coursewares. Also, it will help learners to choose the web coursewares, because the evaluation results for web courseware notify on the web.

• Journal of the Korea Society of Computer and Information
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• v.16 no.2
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• pp.243-248
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• 2011

According to increasing of accessing multimedia stream contents, Web services have become popular. However, these Web services are not supported with the same quality to Web clients who frequently access multimedia services. This paper proposes ontological technique to apply client level Quality of Service(QoS) that provides two different levels to serve Web service with proper quality by contribution value. And, it describes with UML(Unified Modeling Language) how to relate QoS and SLA(Service Level Agreement). Main contribution of this paper is to support client level QoS and SLA and to use Ontology for it. Therefore, this work uses an ontology-based approach to organize QoS and SLA, enabling semantic classification of all Web services based on domains and QoS and SLA attributes.

• Proceedings of the Korean Information Science Society Conference
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• 2005.07b
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• pp.355-357
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• 2005

웹 응용 관련 기술이 널리 이용되면서 적은 비용, 짧은 개발 기간, 고품질 등 새로운 요구사항이 등장하고 있다. 웹 응용 개발 현장에서는 이러한 요구사항을 만족시키기 위하여 개발 초기부터 UI 프로토타입(UI Prototype)물 적극적으로 이용하는 방법을 택하고 있다. UI 프로토타입에에는 클라이언트 측의 항해가 구현되어 있기 때문에, 항해 설계 활동(Navigation Design Activity)이 불필요하다고 생각할 수 있다. 그렇지만 UI 프로토타입의 복잡성과 비정형성 때문에 큰 규모의 웹 응용 개발 과정에서 요구사항을 만족시키지 못할 가능성도 있다. 이 논문에서는 항해 모델을 이용하여 웹 응용 전체를 쉽게 파악할 수 있고, 사용자 관점 및 서버 판정에서 항해의 문제점을 파악할 수 있다는 점을 근거로 UI 프로토타입에 기반한 항해 설계의 필요성을 제시한다. 그리고 웹 응용 개발 프로세스에서 항해와 관련한 활동들의 세부 단계를 밝히고, UML SPEM 프로파일(Profile)을 이용하여 세부 단계를 표현한다.

• Proceedings of the Korean Society for Quality Management Conference
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• 2004.04a
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• pp.603-610
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• 2004

This study examined the effects of interactivity level on Web user's attitude towards Home Shopping sites. In examining the relationships of the factors in the research, the independent variables are reliability and levels of interactivity. The dependent variables are effectiveness, and customer loyalty. Implications for web site designer and management leaders are implicated in the conclusive section.

• Proceedings of the Korean Society of Precision Engineering Conference
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• 2004.05a
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• pp.227-227
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• 2004

오늘날과 같은 무한 경쟁 시대 속에서 기업은 신제품을 좋은 품질을 유지하면서 얼마나 빠르게 시장에 출시하느냐가 기업의 경쟁력을 좌우하게 되었다. 이를 위해서는 설계 단계부터 제품 생산 단계까지의 주기를 단축시켜야만 한다. 이 때 설계 단계의 비용이 가장 크며 많은 시간이 소비된다 물론, 품질에 가장 커다란 영향을 미치는 부분도 바로 설계 단계인 것은 두말할 필요가 없을 것이다. 이에 본 논문에서는 제품 개발에서 중요한 설계 단계를 CPC(Collaborative Product Commerce) 개념을 도입하여 웹에 기반을 둔 설계 지원 시스템을 구축하였다.(중략)