• Journal of Korea Society of Industrial Information Systems
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• v.11 no.2
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• pp.86-97
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• 2006

From the mid 1990's, the scale of IS had been growing, which resulted in increasing number of failure projects. As a result, the measurement of IS performance was a growing concern. Moreover, the need for research on the relation between IT investment and performance that isfd the concern of CEOs has been raised. In this study, the correlation between the IS functionality and investment was discovered based on the IS success model suggested by DeLone & McLean(1992), a business information system evaluation model by Lee Kuk Hie(1992), a balanced score card by Kaplan & Norton(1992). As a result of the LISREL analysis, the investment in the IS has a positive impact on the quality of both information systems and information. In turn, the quality of both information systems and information have a positive impact on the end-user satisfaction, the end-user satisfaction on the financial performance, customer satisfaction, and internal business processes. This study showed that sufficient investment in IS improved business performance

• The Journal of Information Systems
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• v.30 no.3
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• pp.93-112
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• 2021

Purpose Recently, many organizations are actively adopting enterprise architecture (EA) as a methodology to manage IT assets and build IT-based business system. This study intended to empirically examine how the role of EA operating unit and utilization capability of organizational members impact on system performance at the post-adoption stage. A balanced score card (BSC) is being used as a framework for a company's key performance indicator (KPI). Design/methodology/approach This study tried to investigate the causal relationship between the four perspectives of the balanced scorecard as an influencing factor of the introduction of the Enterprise Resource Planning (ERP) on the financial value. In particular, the mediating effect between the customer's point of view and the business process point of view was investigated between the learning growth point of view and the financial point of view, and the interaction effect (regulating effect) of strategic linkage in the system introduction process was investigated. Findings The results of the study were first, that the organizational learning and growth perspective had a positive effect on the customer perspective, business process, and financial perspective. In addition, the customer perspective and the process perspective also had a positive influence on the financial perspective. Second, between the learning growth and financial perspectives, the customer perspective and the process perspective showed a partial mediating effect. Third, as for strategic linkage, the interaction effect between the customer perspective, the learning growth perspective, and the process perspective and the financial perspective was not significant. The results of this study are expected to provide a framework for performance evaluation to organizations that have introduced ERP systems.

• Journal of Digital Convergence
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• v.11 no.12
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• pp.61-67
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• 2013

The B2B e-commerce assurance system supports e-commerce purchases by Credit Guarantee Fund. This process seeks to replace a variety of current systems, including B2C, the credit card payment method on B2B, 2001 Credit Guarantee Fund and the Bank, logistics, e-MP (Market Place), and Business-to-business e-MP (business-to-business electronic payment settlement system). Over the past 10 years of its operation, the e-MP service (B2B e-commerce electronic payment systems) has contributed much to the growth of SMEs. The development of business-to-business e-commerce transactions systems and limits have provided a stable purchasing platform, improving corporate competitiveness. However. the project-based scale of credit guarantee institutions has limitations. To overcome these limitations, we propose a new model of direct or indirect government support for small business e-MP projects. This new model will support the B2B electronic commerce by allowing it to directly involve guarantee institutions directly in B2B online transactions. Therefore, this study urges government backing of the SME based B2B online business model with e-MP service.

• Journal of Korea Multimedia Society
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• v.21 no.5
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• pp.617-625
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• 2018

Phishing website has become a crucial concern in cyber security applications. It is performed by fraudulently deceiving users with the aim of obtaining their sensitive information such as bank account information, credit card, username, and password. The threat has led to huge losses to online retailers, e-business platform, financial institutions, and to name but a few. One way to build anti-phishing detection mechanism is to construct classification algorithm based on machine learning techniques. The objective of this paper is to compare different classifier ensemble approaches, i.e. random forest, rotation forest, gradient boosted machine, and extreme gradient boosting against single classifiers, i.e. decision tree, classification and regression tree, and credal decision tree in the case of website phishing. Area under ROC curve (AUC) is employed as a performance metric, whilst statistical tests are used as baseline indicator of significance evaluation among classifiers. The paper contributes the existing literature on making a benchmark of classifier ensembles for web phishing detection.

• The Journal of Information Technology and Database
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• v.6 no.1
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• pp.89-101
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• 1999

Increasing number of companies recognize that the understanding of customers and their markets is indispensable for their survival and business success. The companies are rapidly increasing the amount of investments to develop customer databases which is the basis for the database marketing activities. Database marketing is closely related to data mining. Data mining is the non-trivial extraction of implicit, previously unknown and potentially useful knowledge or patterns from large data. Data mining applied to database marketing can make a great contribution to reinforce the company's competitiveness and sustainable competitive advantages. This paper develops the classification model to select the most responsible customers from the customer databases for telemarketing system and evaluates the performance of the developed model using LIFT measure. The model employs the decision tree algorithm, i.e., CHAID which is one of the well-known data mining techniques. This paper also represents the effective database marketing strategy by applying the data mining technique to a credit card company's telemarketing system.

• Proceedings of the Korea Information Processing Society Conference
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• 2006.05a
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• pp.577-580
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• 2006

상품을 구입할 때 사용자의 신체 정보를 적용한 스마트카드를 이용하는 것은 전자상거래를 지원하는 현재의 E-business 시스템에 새로운 변화를 가져올 것이다. 사람의 신체는 모든 부분을 식별할 수 있는 다양한 물리적 측정 기준을 가지고 있다. 중요한 것은, 스마트카드는 바디 메트릭을 저장하기위해 적절한 저장장치이고, 그것과 관련된 컨텐츠의 자바 애플릿의 검색이나 업데이트가 용이하다는 점이다. 만약 고객의 신체 정보가 모바일 스마트카드에 저장되어 사용된다면, 그것은 상거래 프로세스에 효율적인 확장을 가져올 것이다. 이 논문은 웹 브라우저와 자바 임베디드 스마트카드사이의 일정한 접근 인터페이스를 개발, 제공하기위한 자바카드 웹 서비스의 프레임워크를 설명할 것이다.

• Proceedings of the KIEE Conference
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• 2006.07d
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• pp.2116-2117
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• 2006

상품을 구입 시 사용자의 신체 정보를 담은 스마트카드를 이용하는 것은 전자상거래시장의 E-business 시스템에 새로운 변화를 가져올 것이다. 사람의 신체는 모든 부분을 식별할 수 있는 다양한 물리적 측정기준을 가지고 있다. 가장 주목할만한 점은 스마트카드는 신체 식별정보를 저장하기위한 적절한 저장장치이며, 관련된 컨텐츠와 자바 애플릿의 검색 및 업 데이트가 용이하다는 점이다. 만약 고객의 신체 정보가 모바일 스마트카드에 저장되어 사용된다면, 그것은 상거래 프로세스에 효율적인 성장을 가져올 것이다. 고객들은 항상 자신의 요구보다 더 좋은 만족도를 원하기 때문에, 모바일 스마트카드 인터페이스는 유비쿼터스 환경에서 그러한 고객들에게 빠른 응답과 최상의 아이템을 살 수 있도록 도울 것이다. 이 논문에서는 XML 스키마와 자바 애플릿을 이용하여 신체 식별 정보를 이용한 상품 구매의 새로운 방안을 제안 할 것이다.

• Proceedings of the Korean Association of Geographic Inforamtion Studies Conference
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• 2003.11a
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• pp.9-14
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• 2003

The major reason that spatial data warehousing has attracted a great deal of attention in business GIS in recent years is due to the wide availability of huge amounts of spatial data and the imminent need for turning such data into useful geographic information. Therefore, this research has been focused on designing and implementing the pilot tested system for spatial decision making. The purpose of the system is to predict targeted marketing area by discriminating the customers by using both transaction quantity and the number of customer using credit card in department store. Focused on the analysis methodology, the case study is aiming to use GIS and clustering for knowledge discovery. The system is a key section of the research of multi-dimensional and spatio-temporal analysis in the internet environment.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.35 no.2
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• pp.220-227
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• 2012

The case company has driven the six sigma innovation programme company wide for the last seven years without any stop in spite of the CEO change. There was neither any benchmark nor the sufficient number of internal experts during the initial stage of driving six sigma. However, the company raised a lot of innovation experts such as MBB, BB and GB, thereby successfully changed the way of employees' doing work and reaped an enormous amount of either visible or invisible performances as a result of implementing the six sigma innovation programme. This paper deals with both main activities undertaken at each stage of the innovation life cycle of six sigma and their performances in a ICT (Information Communication Technology) industry. The performances are described from the four aspects of a balanced score card (BSC) and finally some strategic implications suggested.

• Journal of Korean Society for Quality Management
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• v.30 no.2
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• pp.60-71
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• 2002

The business's paradigm is rapidly changing from product-out to market-in due to Open-door, intensive competitiveness, the variety of the customer's need. Starting from this needs of the times, CRM based on the understanding which company's value coming from the customers is in everyone's mouth. But it can said that it stay in the Immature level at the understanding of this Importance, strategic approach Therefore, the basic objective of this study is to grope the strategic approach that can stand out basic competitive power of department store during the construction of CRM in department store. To achieve the objective of this study, first, we will find out the general error which companies commit during the construction of CRM, second, we will consider the grafting possibility with e-CRM in the case of the CRM's construction in department store. Finally, we will exhibit the conceptual model of department store's CRM which apply the membership card for effectiveness of the Customer Relationship Management.