이사회의 전략적 IT 의사결정 참여가 조직의 성과에 미치는 영향

안중호(Joong Ho Ahn),양지윤(Ji Youn Yang),장정주(Jung Joo Jahng) 한국경영학회 2009 經營學硏究 Vol.38 No.1

In the early stage of IT governance, only computer-related policy and process were associated with IT governance. However, today’s IT is becoming far more complex, IT investment is increasing, and core business tasks are being operated based on IT. All of these lead to the intimate relation between IT and business. Although IT governance has various definitions among scholars and practitioners, they all strive to build a framework for decision making and responsibility to encourage the desirable use of IT. There are two major sources of motivation in IT governance. One is the concerns on corporate governance for improving the transparency of firms and the other one is the concerns on lack of ability to deal with the risk of firms. IT not only plays a key role in present business systems but also in preventing and protecting the firms’ asset from iniquity, loss, and abuse. Unfortunately, as the IT applications propagate, firm’s risk management ability is often not sufficient. IT risk may threaten the going concern of a firm because the size of damages becomes larger as technology improves. Thus IT should not be managed just at the IT department level but at the enterprise level. That is, IT governance is strongly related to shareholder’s value. In this perspective, the firm’s board, as an agent, is extremely important to protect the value of shareholders, the true owners of the firm. Previous researches on information systems only considered CEO, CIO, and IT executives as stakeholders while neglecting the board. However, information systems are now considered as the foundation for the firms’ core businesses and the investments in information systems increase along with more functionally advanced requirements and thus risks are rising accordingly. This phenomenon demonstrates that the past view of IT as a functional part should be transformed into the perspective of IT governance. Theories that support the righteousness of the board’s involvement in IT decision making may be found in the agency theory and the strategic choice theory. In the agency theory’s view, the board may be used as a monitoring mechanism for shareholders’ benefit. According to this theory, the board is to monitor and assess the conducts of agents (CEO and management), to align their rewards to business performance, and to assign or dismiss them in order to protect and maximize the shareholder’s value. Fundamentally, it supports the perspective that it is critical to prevent the shareholder’s loss due to fault decision makings triggered by the management’s incompetence, delinquency, or misconduct. Strategic choice theory states that organization structure is defined by strategic choice of management with authority. This view focuses on individuals or groups in the organization to explore the organization process. This ruling group is able to strategically form a specific organization structure to maintain and strengthen its power, but the final formation of organization structure may not necessarily maximize the effectiveness of organization. In this case, the fiduciary responsibility of the board is to assure the maximization of shareholders’ wealth. Therefore, the board is required to involve aggressively in the strategic decision making for positive outcome. The most widely discussed issue regarding the board’s role is the effect of its involvement in the strategic decision making on financial outcome of the organization. Strategic decision makers in this theory are to pursuit the optimization of financial outcome in its firm. When applying this theory to IT governance, the board should pay attention to the strategic IT decision making. The strategic choice theory strengthens the shareholder’s benefit by allowing the board’s involvement in the strategic decision making and thus complements the perspective of business-IT alignment. The board’s involvement in the strategic IT decision making directly influences the business-IT alignment and IT risk readines

최종이용자컴퓨팅 지원업무가 MIS 요원에게 미치는 영향

안중호(Joong Ho Ahn),박치관(Chy Gwon Park) 한국경영학회 1992 經營學硏究 Vol.22 No.1

學術 데이터베이스 構築 및 活用에 관한 硏究

안중호(Joong Ho Ahn),이원부(Won Boo Lee),박치관(Chy Gwan Park),김범수(Beom Soo Kim) 성곡언론문화재단 1993 성곡논총 Vol.24 No.-

휴대폰 메시지 위·변조 위험성 연구

안중호 ( Joong-ho Ahn ),이승용 ( Seungyoung Lee ),김민수 ( Minsoo Kim ),노봉남 ( Bong-nam Noh ) 한국정보처리학회 2007 한국정보처리학회 학술대회논문집 Vol.14 No.2

최근 모바일 환경의 기술 발전과 더불어 그 활용분야는 더욱 확대되고 있다. 하지만 그에 따른 역기능에 대한 문제는 나날이 심각해지고 있으며, 뚜렷한 대책 마련이 미비한 실정이다. 대표적 모바일 기기인 휴대폰도 각종 범죄의 도구로 사용되고 있으며, 그에 따라 범죄수사 과정에서 법적 증거자료 획득을 위한 중요도가 높아지고 있다. 하지만 휴대폰으로부터 획득한 증거자료의 신뢰성이 결여된다면, 법적인 증거능력의 상실로 큰 혼란을 유발시키게 된다. 본 논문에서는 법적인 증거능력을 상실시킬 수 있는 휴대폰 내부 메시지에 대한 위·변조 가능성에 대해 실험적으로 증명하고, 그 위험성을 고찰하는 것에 그 목적이 있다. 또한 이를 보완하기 위해서 해쉬함수를 휴대폰 내부 시스템에 적용하는 방법을 제시하고자 한다.

마우스에서 고려 홍삼의 구강내 섭취를 통한 소음성 난청의 예방효과

안중호(Joong Ho Ahn),김태수(Tae Soo Kim),정하나(Hana Chung),이나영(Nayoung Lee),정종우(Jong Woo Chung) 고려인삼학회 2009 Journal of Ginseng Research Vol.33 No.2

고려 홍삼이 소음성 난청에서 청력 보호 및 회복에 관여하는 지를 밝히기 위하여 마우스에서 홍삼을 투여 후 소음에 노출시켜 청력 역치의 변화 및 와우의 활성 산소 유리기에 대한 노출 정도를 보았다. 영구적 청력 역치 이동의 경우에 홍삼은 청력 보호 및 회복에 관여하지 못했다. 하지만 일과성 청력 역치 이동의 경우에는 홍삼이 어느 정도의 농도 이상으로 투여 된다면 청력 회복에 효과적으로 작용하는 것으로 밝혀졌다. 향후 홍삼의 난청 억제 효과에 대해 적정 농도 및 투여 방법 등에 대한 후속연구가 뒤따라야 하겠고 인간에서 발생하는 소음성 난청에의 적합성 판정을 위해 보다 장기적인 소음 노출 기간과 장기적인 홍삼 복용에 대한 연구가 필요하겠다. 또한 홍삼내의 여러 활성물질에 관한 연구를 통하여 보다 효과적인 화합물을 찾기 위한 노력도 동반되어야 할 것이다. It is well known that the saponin of Korean red ginseng (KRG) has an anti-oxidant effect and could suppress the accumulation of lipid peroxidation. The aim of the present study was to observe the inhibitory effect of KRG on mice with noise-induced hearing loss, and to determine its optimal dose. BALB/c mice with a normal hearing level and normal Preyer's reflexes were used in the study. The mice in the permanent-threshold-shift (PTS) group were exposed to noise (120-㏈ SPL, white noise band) in a noise booth for 3 h a day, for three consecutive days. The mice in the experimental group were given heat-processed red-ginseng extract (50 ㎎/㎏, 100 ㎎/㎏, and 200 ㎎/㎏), and those in the control group were given normal saline alone during their noise exposure. The mice in the temporary-threshold-shift (TTS) group were exposed to noise (120 ㏈SPL, white noise band) in a noise booth for 3 h. The mice in the experimental group were given heat-processed red-ginseng extract (50 ㎎/㎏, 100 ㎎/㎏, and 200 ㎎/㎏), and those in the control group were given normal saline alone before their noise exposure. The hearing levels of the mice were measured through auditory brainstem response (ABR) immediately and 1, 3, 5, 7, and 14 days after their noise exposure. Cochleae were removed from the mice 14 days after their noise exposure. Immunochemical and immunofluorescent staining were performed to observe the expression of 8-oxoG in cochlea. In the PTS group, the hearing function of the mice in all the groups was not recovered after their noise exposure. In the TTS group, however, the hearing function of the mice in all the groups was recovered within 14 days. Reduced hearing impairment and early recovery were observed in the mice that were given 200 ㎎/㎏ KRG, and early recovery was observed in the mice that were given 100 mg/kg KRG. The immunopositive staining of 8-oxoG was detected in the stria vascularis in the control group but was diminished in the mice that were given 200 ㎎/㎏ KRG. The ingestion of more than 100 ㎎/㎏ KRG demonstrated a protection and recovery effect on the noiseinduced-TTS group. Since KRG has been reported to be a safe compound even up to hundreds of mg/kg, a higher concentration of it may effectively protect and recover TTS.

통신 방송 융합 환경에서의 T-Commerce 수용 모델에 관한 연구

안중호 ( Joong Ho Ahn ),김은진 ( Eun Jin Kim ),박철우 ( Chul Woo Park ) 한국지식경영학회 2009 지식경영연구 Vol.10 No.2

고속철도에 있어서의 정보시스템 구현 사례에 대한 연구

이성호,안중호,Lee, Sung-Ho,Ahn, Joong-Ho 한국경영정보학회 2005 Information systems review Vol.7 No.2

대한민국의 고속철도통합정보시스템(IRIS) 구축 사업은 2000년 12월 23일부터 2004년 12월 30일까지 4년여에 걸쳐 총 일천여 억 원의 예산과 총인원 10,000M/M 이상의 인력을 투입하고 18,000여 본의 프로그램을 개발한 초대형 프로젝트로서 크게 응용 시스템 개발, 인프라 아키텍처, 그리고 역무자동화 장비 구축 등으로 구분하여 추진되었다. 본 연구에서는 첫째, IRIS의 구축 배경과 전체적인 내용 및 시스템 이미지를 제시한 후 개별 시스템들에 대한 각각의 주요 내용을 제시하였다. 둘째, 성공적인 프로젝트 추진을 위한 프로젝트 관리방법론과 시스템 개발방법론을 적용한 특징 및 내용을 살펴보았다. 마지막으로 IRIS 사업의 주요 포인트와 향후 발전 방향을 논의하였다. 이 프로젝트의 전체적 시스템 구축 및 운영 성과에 대한 평가는 향후 시스템을 운영하면서 좀 더 자세히 분석 및 연구되어야 할 것이다. Integrated Railroad Information System(IRIS) Construction Project is one of the super projects in Korea required to invest over 100 billion won and 10,000 engaged manpower until Dec 30, 2004. Composition of this paper is as follows; firstly, examined individual contents and aspects of IRIS, and studied formality and contents that have been based to project methodology for successful propulsion of project in overall situation of SI project progress until present. Secondly, presented for construction background of IRIS as well as Project Management and Project Development Methodologies. Thirdly, described each characteristic and development substance for individual systems after present whole contents and system image of the system. Finally, presented successful propulsion result of this project and development directions. We presented development example laying stress on IRIS's Project contents and propulsion circumstances. Evaluation about operation results should be analyzed and studied in detail operating system from now on.

e마켓플레이스에서 관계교환수준이 구매업무성과에 미치는 영향

권순동,안중호,양희동,Kwon, Sun-Dong,Ahn, Joong-Ho,Yang, Hee-Dong 한국경영정보학회 2003 Asia Pacific Journal of Information Systems Vol.13 No.3

As the interest in the business-to-business(B2B) electronic commerce is increasing, some companies are participating in the B2B eMarketplaces(electronic marketplaces). The eMarketplace has an effect on the method of B2B transactions or the purchasing performance. The academy and the industry are focused on the cause and the result of this effect. The purpose of this research is to analyze the effects of the relational exchange with eMarketplace on the purchasing performance, considering the supply externality and system integration as intervening variables. This study investigates the second-order effect of eMarketplace in which the degree of improvements in two aspects of purchasing activity(price reduction, purchasing efficiency) depends on the degree of the relational exchange with eMarketplace, namely, the governance of eMarketplace. Our hypotheses on this second order effect were supported. We found that the higher the relational governance, the lower in price reduction, and the better in purchasing efficiency. In more details, the high relational governance lowers the supply externality, and in turn deteriorates the improvement in price reduction. Meanwhile, the high relational governance accelerates the information system integration, and brings the better purchasing efficiency. Our findings suggest that organizations can improve their purchasing activities better if they choose the appropriate eMarketplace governance.

정보기술 수용 후 주관적 지각 형성: 사용 경험에서 형성된 습관, 기대일치, 자기효능감의 역할

김용영,오상조,안중호,장정주,Kim, Yong-Young,Oh, Sang-Jo,Ahn, Joong-Ho,Jahng, Jung-Joo 한국경영정보학회 2008 Asia Pacific Journal of Information Systems Vol.18 No.1

Researchers have been continuously interested in the adoption of information technology (IT) since it is of great importance to the information systems success and it is also an important stage to the success. Adoption alone, however, does not ensure information systems success because it does not necessarily lead to achieving organizational or individual objectives. When an organization or an individual decide to adopt certain information technologies, they have objectives to accomplish by using those technologies. Adoption itself is not the ultimate goal. The period after adoption is when users continue to use IT and intended objectives can be accomplished. Therefore, continued IT use in the post-adoption period accounts more for the accomplishment of the objectives and thus information systems success. Previous studies also suggest that continued IT use in the post-adoption period is one of the important factors to improve long-term productivity. Despite the importance there are few empirical studies focusing on the user behavior of continued IT use in the post-adoption period. User behavior in the post-adoption period is different from that in the pre-adoption period. According to the technology acceptance model, which explains well about the IT adoption, users decide to adopt IT assessing the usefulness and the ease of use. After adoption, users are exposed to new experiences and they shape new beliefs different from the thoughts they had before. Users come to make decisions based on their experiences of IT use whether they will continue to use it or not. Most theories about the user behaviors in the pre-adoption period are limited in describing them after adoption since they do not consider user's experiences of using the adopted IT and the beliefs formed by those experiences. Therefore, in this study, we explore user's experiences and beliefs in the post-adoption period and examine how they affect user's intention to continue to use IT. Through deep literature reviews on the construction of subjective beliefs by experiences, we draw three meaningful constructs which theoretically have great impacts on the continued use of IT: perceived habit, confirmation, and computer self-efficacy. Then, we examine the role of the subjective beliefs on the cognitive/affective attitudes and intention to continue to use that IT. We set up a research model and conducted survey research. Since IT use implies interactions among a user, IT, and a task, we carefully selected the sample of users using same/similar IT to perform same/similar tasks, to exclude unwanted influences of other factors than subjective beliefs on the IT use. We also considered that the sample of users were able to make decisions to continue to use IT volitionally or at least quasi-volitionally. For each construct, we used measurement items recognized for reliability and widely used in the previous research. We slightly modified some items proper to the research context and a pilot test was carried out for forty users of a portal service in a university. We performed a full-scale survey after verifying the reliability of the measurement. The results show that the intention to continue to use IT is strongly influenced by cognitive/affective attitudes, perceived habits, and computer self-efficacy. Confirmation affects the intention to continue indirectly through cognitive/affective attitudes. All the constructs representing the subjective beliefs built by the experiences of IT use have direct and/or indirect impacts on the intention of users. The results also show that the attitudes in the post-adoption period are formed, at least partly, by the experiences of IT use and newly shaped beliefs after adoption. The findings suggest that subjective beliefs built by the experiences have deep impacts on the continued use. The results of the study signify that while experiencing IT in the post-adoption period users form new beliefs, attitudes, and intentions which may be differe

물류정보시스템 구현 및 최적화 사례 연구

이현구(Lee, Hyun-Koo),안중호(Ahn, Joong-Ho),김태하(Kim, Tae-Ha) 한국산학기술학회 2010 한국산학기술학회논문지 Vol.11 No.7

본 논문은 물류 정보시스템과 관련된 자동입출고 시스템의 실행 및 최적화에 관한 것이다. 논문은 우선 문 헌연구와 이에 따른 사례연구를 제시하고 있다. 사례연구에서는 기업의 프로세스를 분석한 다음 자동입출고 시스템의 실행 및 활용에 대해 조사하였다. 물류정보시스템은 글로벌 환경에서 경쟁력을 유지하기 위해 주요한 구성요소이며 사례연구에서의 기업은 효율적인 물리적 배분관리에 적용하였다. 자동입출고시스템은 저장공간을 극대화하고 생산성 증가, 정확성을 증가시키는 것으로 판명되고 특히 비좁은 통로와 높은 저장선반의 경우 효과적임을 보여주었다. This work focuses on the implementation and optimization of the Automated Storage and Retrieval System(AS/RS) which is associated with Logistics Information System(LIS). We survey literature and present a case study for the optimization of Logistics System. In the case study, we examine the adaptation and implementation of AS/RS after we analyzed the processes of the company. Logistics Information System is an important component to keep up with the competitive advantage in the global business environments. The company in the case applies LIS to its efficient physical distribution management. AS/RS leads to some benefits; maximized storage space, increased productivity, reduced labor costs and human error, and improved accuracy. AS/RS is found especially effective when working with narrow aisles and extremely high racks.