• The KIPS Transactions:PartD
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• v.10D no.3
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• pp.489-500
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• 2003

Due to the rapid growth of Internet, modern software applications must support many web-based functionalities than traditional software applications. These web-based functional supports increase the complexity of software architecture and the cost of software development. Therefore, the development of an efficient environment that web characteristics are well reflected is the most important. In this thesis, we have presented an efficient environment for development of web applications. For the presented environment, after considering the web characteristics, we defined a Process for web applications and modeling environment. The Presented environment has three main functions : $\circled1$ it Provides a modeling environment for design of web-based applications, $\circled2$ it has a modeling language called WML(web-application modeling language), $\circled3$ it automatically extracts web pages from diagrams. As a result, using the three main functions of the presented environment, we can easily design, develop, and maintain the web applications.

• Proceedings of the Korea Society of Information Technology Applications Conference
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• 2002.11a
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• pp.417-422
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• 2002

In recent years, the progress of Network and Web technology is made more demanding and pervasive of Web-based information systems. At the same time, the complexity of web applications has grown significantly. As a result, developers, users, and other stake-holders have become increasingly concerned about the manner in which complex Web-based systems are created as well as the level of system performance quality, and integrity. In this paper, we propose an efficient developing process and modeling environment of the web applications. Also, after modeling web application using the diagrams, web pages are extracted automatically. It is aimed at facilitating the desist implementation and maintenance of large, complex web applications and the reuse of previously gathered design experience.

• Proceedings of the Korea Society for Industrial Systems Conference
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• 2002.11a
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• pp.417-422
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• 2002

In recent years, the progress of Network and Web technology is made more demanding and Pervasive of Web-based information systems. At the same time, the complexity of web applications has grown significantly. As a result, developers, users, and other stake-holders have become increasingly concerned about the manner in which complex Web-based systems are created as well as the level of system performance, quality, and integrity. In this paper, we propose an efficient developing process and modeling environment of the web applications. Also, after modeling web application using the diagrams, web pages are extracted automatically. It is aimed at facilitating the design, implementation and maintenance of large, complex web applications and the reuse of previously gathered design experience.

• The Transactions of the Korea Information Processing Society
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• v.7 no.9
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• pp.2846-2856
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• 2000

Recently, according to the rapid development of web technology, a lot of applications based on web techniques have been developed. However, most of web applications have been developed relying on knowledge and experiences of the developer without systematic process. Web Applications are seldom developed in isolation. For web application designers, the simple and semantically rich methodology is needed to improve design and development process. In this paper, we propose a new development process methodology to improve low level technology based application development process which do not provide high level abstraction. We also suggest a new methodology to construct applications based on web. We describe a systematic web application development process by using Navigation Diagram as a analysis, design modeling method to develop web application with productivity and Quality. We apply the new development process to the EPBS(Electronic Problem Bank System) as examples. Web application development process proposed in this thesis can be maintained through reverse development, because it can be defined as high level abstraction for modeling. It is very easy to be understood as a process based on models. Also, analysis and design models can be reused as useful component whenever similar web application is developed.

• The KIPS Transactions:PartA
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• v.10A no.5
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• pp.503-512
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• 2003

Recently many applications are being developed as web technologies are evolved rapidly, but the development emthodology and quality improvement speed of the web apllications is not so. The creations of Most web applications have developed depending on the developer's knowledge and experience without a systematic development methodologies. But the web-based application systems require the various developing gechniques and the rich developing methodogies for a design process. This paper applies the UML(Unified Modeling Language) supporting an object-oriented development methodology to the design and implementation of a mobile customer management system. That is, it appliesthe UML to the system modeling based on a story board and a requirement specification at the web development of the similar web applications. Applying UML to this system achieved the analysis and the design of an web application effciently.

• Journal of KIISE:Software and Applications
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• v.28 no.1
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• pp.14-25
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• 2001

For having various applications, XML is widely used in various fields. But, there have not been proposed a system to integrate and manage XML and its applications together. In this paper, we propose methods to integrate web-based XML applications(SMIL, RDF, WIDL) and for object-oriented modeling of each DTD and document instance. We prppose and system to merge object modeling of XML applications. With the proposed integrating algorithm, we can not only easily analysis various web-based XML applications which is represented by complex tags but also generate object-oriented schema for each document and store it to OODBMS.

• Journal of the Korea Computer Industry Society
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• v.3 no.5
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• pp.661-670
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• 2002

As web technology is developed, web application becomes the basis which combines business services. However, most of the web applications have depended upon the capability of the web developer. When web application is developing, the property of the web should be considered in the ways of approach and modeling. In this paper, after modeling web application using UML and the extend of UML, web pages are extracted automatically. Thus, web application developing is easy to be maintained and to be repaired on a large scale.

• Journal of KIISE:Software and Applications
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• v.34 no.3
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• pp.179-195
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• 2007

Traditional software development method is not suitable for Web application development because of characteristics of Web application such as frequent requirements change, different architectures and models and quick-to-market delivery. In this paper we propose a Web application development method adaptable to requirements change while we systematically model Web application using extended UML model. The metamodel is independent to specific languages and technologies because we define the metamodel using extended UML model. Proposed process is described by SPEM(Software Process Engineering Metamodel) profile. A process supporting tool execute and customize process. To model Web applications systematically and effectively, a navigation modeling and a component communication modeling tools are provided. In a case study, we show the usefulness of our process and model.

• International Journal of Internet, Broadcasting and Communication
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• v.11 no.2
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• pp.31-42
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• 2019

As smartphone H/W performance and mobile communication service have been enhanced, large-capacity 3D modeling files are available in smartphones. Common formats of 3D modeling files include STL (STereoLithography), OBJ (Wavefront file format specification), FBX (Filmbox), and glTF (open GL Transmission Format). Each format has different characteristics depending on the configuration and functions, and formats that are supported are varied depending on the applications. Large-size files are commonly used. The 4th generation mobile communication network secures loading of 3D modeling files and transmission of large-size geometric files in order to provide augmented reality services via smartphones. This paper explains the concepts and characteristics of major 3D file formats such as OBJ, FBX, and glTF. In addition, it compares their performance in a wired web with that in the 4th generation mobile communication network. The loading time and packet transmission in each 3D format are also measured by means of different mobile web browsers (Google Chrome and MS Edge). The experiment result shows that glTF demonstrated the most efficient performance while the loading time of OBJ was relatively excessive. Findings of this study can be utilized in selecting specific 3D file formats for rendering time reduction depending on the mobile web environments.

• KIISE Transactions on Computing Practices
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• v.23 no.1
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• pp.13-27
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• 2017

This paper presents a tool that automatically generates mobile web applications from user interface (UI) models which are based on PELUM (Pattern and Event based Logical User Interface Modeling). PELUM is a method for the effective development of UI-centered embedded systems via UI modeling. The proposed tool consists of a model editor and a code generator. The former provides an environment for modeling a Logical UI Model (LUM) and a Programming Interface Model (PIM) on the web. On the other hand, the code generator sets the screen configuration and events' behavior, according to the LUM, synthesizing a local database schema according to the PIM, and then generates an executable mobile web app. It also can produce mashup web apps by receiving an open API address via the PIM. The generated mobile web apps follow the Model-View-Controller (MVC) architecture in order for users to easily customize them. The proposed tool enables them to generate mobile web apps that can be executed on various devices by modeling logical UIs on the web.