• Asia pacific journal of information systems
• /
• v.9 no.1
• /
• pp.77-98
• /
• 1999

The purpose of this paper is to determine success factors important to electronic payment system and also to review its environments in order to present development direction of electronic commerce in Korea. A field survey including interviews and questionnaire surveys is made in 12 experts who were identified as having research experiences and/or development experiences of electronic payment systems, 35 merchants who are doing business over the Internet, and 96 netizens who were identified as a consumer group. In this study, we reviewed four dimensions affecting the acceptance of electronic payment systems such as safety, security, convenience, and efficiency. Finally, we suggested a total of 32 factors important to electronic payment systems and classified all factors into four dimensions.

• Archives of design research
• /
• v.17 no.4
• /
• pp.79-88
• /
• 2004

This study is aimed to grasp the organization of Internet information resources and to infer the characteristics of resource search engines so that criteria may be established to classify and evaluate Internet information resources. In addition, the author has compared and analyzed interior design classification systems of directory sites of each subject that provide classification system based on the Internet, foreign sites to be used to search for information, and domestic information-specialized sites in order to set up models of interior design classification systems of directories of each Web subject. The systems have been analyzed against such four measures as comprehensiveness of the subject scope, logicality of classification systems, preciseness of subject terms, and effectiveness of searches. Information of interior designs is mixed with that of related fields, and so its information search and classification are not organized systematically. The author has analyzed such a problem so as to present models of search engine classification systems for interior design information classification after considering both academic and practical aspects.

• Journal of Information Technology Services
• /
• v.11 no.2
• /
• pp.131-146
• /
• 2012

The purpose of this research is two-fold : (1) we propose the paradigm to construct a connected information society according to a judgment where a coming information society will evolve into highly-connected information society having "seamlessness" as a keyword, and (2) we draw guidelines to construct infrastructures and establish systems and business models of highly-connected information society based on suggested paradigm. To achieve this, this research conducts the followings. First, we suggest reasons why a coming information society can be appropriate to be considered as highly-connected information society by examining two perspectives on the coming information society. Second, we explain the definition and characteristics of highly-connected information society and propose the SPB paradigm. Third, we analyze the utility of SPB paradigm by evaluating practices. Finally, we suggest four strategies to construct highly-connected information society based on advanced research findings and future research directions.

• ETRI Journal
• /
• v.24 no.1
• /
• pp.12-22
• /
• 2002

A Mobile IP allows IP hosts to move between different networks without changing their IP addresses. Mobile IP systems supporting local registration were introduced to reduce the number of times a home registration with the remotely located home agent was needed. The local registration Mobile IP scheme enhanced performance by processing registration requests of mobile nodes at a local agent. The local registration approach may affect other aspects of the Mobile IP systems such as fault tolerance. In this paper, we briefly review previous solutions for supporting fault tolerance in local registration Mobile IP systems and propose a fault tolerance protocol with a backup foreign agent in a hierarchical local registration mobile IP to enhance the efficiency of such systems against foreign agent failures. We also describe the specification of the proposed protocol using LOTOS and perform its validation using MiniLite. Finally, we analyze the performance of our proposed fault tolerance protocol through simulation.

• Journal of Korea Society of Industrial Information Systems
• /
• v.9 no.4
• /
• pp.16-25
• /
• 2004

A Classifier System is a system based on rules to invent new rules from the present useful ones. In this paper, Genetic Algorithms are proposed to find good classification rule of Classifier System which can extract useful information from huge database. The proposed scheme is applied to the real problems such as the car insurance problem to evaluate the performance of Genetic Algorithm based classifier systems.

• Asia pacific journal of information systems
• /
• v.16 no.2
• /
• pp.69-84
• /
• 2006

Importance of Today's diffusion of integrated hospital information systems is that various and huge amount of data is being accumulated in their database systems. Many researchers have studied utilizing such hospital data. While most researches were conducted mainly for medical diagnosis, there have been insufficient studies to develop medical care cost prediction model, especially using machine learning techniques. In this research, therefore, we built a medical care cost prediction model for cancer patients using CBR (Case-Based Reasoning), one of the machine learning techniques. Its performance was compared with those of Neural Networks and Decision Tree models. As a result of the experiment, the CBR prediction model was shown to be the best in general with respect to error rate and linearity between real values and predicted values. It is believed that the medical care cost prediction model can be utilized for the effective management of limited resources in hospitals.

• Proceedings of the Korean Society of Computer Information Conference
• /
• 2017.07a
• /
• pp.259-260
• /
• 2017

본 논문에서는 건설 현장이나 발전소 등의 고소 작업이 많은 곳에서 작업하는 근로자의 안전을 확보하기 위해, 클라우드 웹 서비스에 기반에 고소작업자의 행동 데이터를 수집 저장하여 그 데이터를 통해 관리자가 작업자의 행동을 모니터링 하고 위험경고 메시지를 받을 수 있는 시스템을 제안하였다. 작업자가 하는 행동을 관리자가 실시간으로 확인하는 것을 통해 고소 작업산업 현장에서 작업자의 경각심으로 예방이 가능하다.

• IE interfaces
• /
• v.19 no.1
• /
• pp.9-18
• /
• 2006

In this paper, we explore the ubiquitous system that provides new business opportunities in the context of digital convergence. Exploiting the value network of the proposed ubiquitous system, we analyze strategic market drivers that define the speed and direction of the evolution path for ubiquitous industries. Motivated by the dynamic growth of ubiquitous industry, we design a set of ubiquitous business models that pave the way for firms to identify profitable business cases. In addition, we analyze the evolution path of the proposed business model such that the model can be implemented in the life-cycle of ubiquitous industry. Futhermore, we develop a modeling framework for selecting a suitable business model and for evaluating the performance of the selected business model.

• Asia pacific journal of information systems
• /
• v.17 no.1
• /
• pp.59-76
• /
• 2007

Information and Communication Technologies (ICT) changed our everyday business drastically. Business routines have been transformed to online activities. New theories and models were developed for the brand new online environment. For online negotiations, however, the research on new mechanisms is not enough, especially for bilateral distributive negotiations. A reserve price reporting mechanism (RPR) together with its extended version (ERPR) is proposed in this paper. The key improvement of reserve price reporting mechanisms is to let the negotiators report their reserve price to a third-party system before they actually start the negotiation. A prototype of this RPR system is developed and a lab experiment is conducted to test the performance of the two mechanisms compared with traditional direct bargaining (TDB) mechanism. The results of the experiment support that the reserve price report mechanisms proposed are more efficient than the traditional one in several dimensions including social welfare.

• International Journal of Computer Science & Network Security
• /
• v.24 no.8
• /
• pp.153-158
• /
• 2024

This paper is an extended paper showing the role of Decision Support Systems (DSS) in other fields of Marketing Management (M.Mgnt). DSS facilitates in decision making many M.Mgnt concepts and Customer Relationship Management (CRM) is one of them and it depends on the firm's tasks for developing and retaining customers while achieving their satisfaction and enhancing the sense of belongingness for their products and services. Profit maximization, the process of customer value, and building strategic values for the firm are the three empirical benefits of CRM that are achieved through analytical, operational, and direction (AOD) capabilities respectively. This research focuses on the application of DSS models of what-if analysis (WIA) for CRM at (AOD) and also shows the dependence on the Information Success model (ISM). Hypothetical data are analyzed for (AOD) by three types of (WIA) to attain CRM and profit maximization and this analytical method can be used by any customer-oriented firm as a general model.