국내 기업의 인트라넷 수용특성에 관한 실증적 연구

김병곤,박순창,김진화,김종욱,Kim, Byung-Gon,Park, Soon-Chang,Kim, Jin-Hwa,Kim, Jong-Uk 한국경영정보학회 2003 Asia Pacific Journal of Information Systems Vol.13 No.4

Individual adoption and sustained usage of information technology(IT) are crucial prerequisites for exploiting IT as integral components of organizational work. Previous studies on technology adoption in workplace suggest that acceptance behavior is influenced by a variety of factors such as individual differences, social influences, beliefs, attitudes, and situational influences. In this paper, we introduce a research model to predict the usage behavior of intranet in workplace and also explain the causal relationships among variables. Based on the survey of 333 intranet users, this study uses structural equation model with LISREL 8.12. This study suggests several major results from surveys and analysis from them. Perceived use is influenced by intranet experience, task equivocality, organizational support, and perceived ease of use, Experience and organizational support determine perceived ease of use. Task equivocality, task interdependence, and organizational support have positive effects on subjective norm. On the other hand, present usage, which is a dependent variable in this model, is influenced by perceived use, experience, task interdependence, and organizational support.

요통환자의 작업자세에 따른 요천추부 각도의 비교

김병곤,박래준,이승주,Kim, Byung-Gon,Park, Rae-Joon,Yi, Seung-Ju 대한물리치료학회 2001 대한물리치료학회지 Vol.13 No.1

Low back pain is significant problem in today's society, with lifetime incidence rate reported between 50% and 90%. Many factors associated with LBP are reported. The purpose of this studies were to be evaluated static standing posture aberrations in chronic LBP in comparison with healthy individuals. The samples including 80 subjects recruited to the following two groups:patients and control(normal) Questionnaires were completed by 40 LBP patients and 40 controls at the department of Physical Therapy, Saejong neurosurgical clinic in Taegu city from October 1, 1999 to March 30, 2000. The angle of lumbar lordosis was measured on lateral x-ray films with standing position. In LBP groups. the mean degree of lumbar lordosis, sacral inclination, and lumbosacral joint angle were 29.9 ${\pm}$ 9.3, 34.8 ${\pm}$ 8.2, and 12.7 ${\pm}$ 5.7 respectively. Control groups, the mean degree of lumbar lordosis, sacral inclination and lumbosacral joint angle were 35.3 ${\pm}$ 7.8, 34.9 ${\pm}$ 6.4 and 12.5 ${\pm}$ 4.3 respectively. there were significantly decreaseds in lumbar lordosis in Low back pain group. lumbar lordosis on the working posture had significant differences among groups(sitting position patients 31.4 ${\pm}$ 9.3, standing position patients 29.4 ${\pm}$ 9.3, sitting position control 35.0 ${\pm}$ 6.4, standing position control 35.5 ${\pm}$ 8.8, respectively) (p=0.034). sacral inclination on the working posture had differences among groups(sitting position patients 35.9 ${\pm}$ 8.7.standing position patients 33.6 ${\pm}$ 7.6, sitting position control 33.9 ${\pm}$ 5.9. standing position control 35.6 ${\pm}$ 6.8, respectively). lumbersacral joint angle on the working Posture had differences among groups(sitting position patients 12.0 ${\pm}$ 5.6, standing position patients 13.4 ${\pm}$ 5.9, sitting position control 11.2 ${\pm}$ 3.0. standing position control 13.4$^{\circ}$, respectively).

관리특성과 조직특성이 EDI 구현에 미치는 상호작용 효과 분석

김병곤,정영수,Kim, Byung-Gon,Chung, Young-Soo 한국경영정보학회 2003 Asia Pacific Journal of Information Systems Vol.13 No.2

There have been quite many studies to identify factors affecting successful implementation of EDI systems. However, previous studies have investigated influencing factors independently. Given the complexity involved in the implementation of EDI systems, it might be quite necessary to investigate the interaction effects between influencing factors. The primary purpose of this study is to investigate the interaction effects of organizational characteristics as contextual variables on the relationship between managerial characteristics and EDI implementation. Analysis of 202 responses of survey questionnaire indicates the following: 1) Education/training and top management support has positive effect on the successful EDI implementation. 2) The degree of decentralization has strong, and management risk position has mild moderating effect on the relationship between managerial characteristics and EDI implementation. 3) The degree of formalization and organizational size have no moderating effect. 4) The subgroup analysis, conducted to determine the exact nature of interaction effect, reveals that the relationship between managerial characteristics and EDI implementation is significantly stronger with a high level of decentralization or management risk position than with a low level.

데이터 웨어하우징의 구현특성요인과 품질간의 관계에 관한 실증적 연구

김병곤,Kim, Byung-Gon 한국정보기술전략혁신학회 2005 情報學硏究 Vol.8 No.3

The IT implementation literature suggests that various implementation factors play critical roles in the success of an information system; however, there is little empirical research about the implementation of data warehousing has unique characteristics that may impact the importance of factors that apply to it. in this study, a cross-sectional survey investigated a model of data warehousing success. Data warehousing managers and data suppliers from 51 organizations completed paired mail questionnaires on implementation factors and the success of the warehouse. The results from a regression analysis of the data identified relationships between the system quality and data quality factors and perceived net benefits. It was found that management support and resources help to address organizational issues that arise during warehouse implementations, resources, user participation, and highly-skilled project team members increase the likelihood that warehousing projects will finish on-time, on-budget, with the right functionality; and diverse, unstandardized source systems and poor development technology will increase the technical issues that project teams must overcome. The implementation's success with organizational and project issues, in turn, influence the system quality of the data warehouse; however, data quality is best explained by factors not included in the research model.

RDF 문서의 키워드검색 서비스를 위한 리소스와 속성을 고려한 인덱싱 구조

김병곤,Kim, Byung-Gon 한국정보과학회 2005 정보과학회논문지 : 기술교육 Vol.2 No.1

빠른 속도로 증가하는 인터넷 사용자의 요구를 만족시키기 위하여 RDF와 같은 메타데이터 기술 언어들에 대한 연구가 많이 진행되고 있다. RDF는 인터넷 정보자원들 간의 연관성과 의미가 표현 가능하도록 하여 차원 높은 정보의 표현과 검색이 가능하도록 한다. RDF의 이러한 이점 때문에 XML을 기반으로 구현되고 있는 많은 인터넷 응용들에 대한 RDF로의 변환에 대한 대비가 필요한 시점이다. 본 논문에서는 XML과 RDF에 대한 개념 및 차이점을 소개하고 인터넷상에서 가장 많이 발생하는 키워드 검색을 효율적으로 처리하기 위하여, RDF 문서에 대한 인덱싱 기법을 제안하였다. RDF문서에 대한 질의 중에서 키워드에 대한 검색의 결과로 리소스를 반환하는 경우를 고려하여 리소스를 중심으로 한 인덱스 구조를 제안하였으며, 검색의 결과로 리소스의 속성을 반환하는 경우를 대비하여 속성 중심의 인덱스 구조를 제안하였다. 이는 리소스/속성/값으로 반복되는 RDF의 기본 구조를 고려하여 구성한 것이며, 다양한 질의 유형에 능동적으로 적용가능 할 수 있도록 하였다. To satisfy Internet user's request increasing at the fast speed, study about metadata technology languages such as RDF is proceeded much. RDF can express relation and meaning between internet information resources. Therefore, intellectual information expression and search can be serviced. Because of these advantages of RDF, conversion of a lot of Internet XML applications to RDF is necessary In this paper, concept and difference about XML and RDF is introduced and indexing technique for efficient processing of keyword search that happen in the Internet in RDF is suggested. We proposed resource centered index structure considering occasion that return resources as a result of search about keyword among question for RDF document, and proposed property-centered-index-structure considering occasion that return attributes of resources. Proposed technique considers efficient use of basis structure of RDF that is repeated by resources/property/value.

농협의 모바일 뱅킹 서비스 사례

김병곤(Byung Gon Kim) 한국데이타베이스학회 2010 Journal of information technology applications & m Vol.17 No.2

Mobile banking is a subset of electronic banking which underlies not only the determinants of the banking business but also the special conditions of mobile commerce. Nowadays wireless networks are being evolved and diversified. In this situation The wireless e-commerce is in the limelight on new profits of Carriers. Especially from current year when Carriers in domestic plans to provide the services using 2.5G networks the service providers choose wireless e-commerce as the main parts of wireless internet strategy and will provide a various of services. Because of this situation, the importance of mobile billing service is being emphasized. This paper searches the definition and service types of mobile banking, and suggests status and prospects of domestic mobile banking. We suggest the basic direction, the stage of development and functions of services by analyzing the cases of Nonghyup's. Finally we derive the critical factors from those and suggest the effect of introduction and the direction of development. From the customer perspective, mobile banking has many strengths. For example, it allows that all customers access banking service at anytime, anywhere more easily than telephone banking or pc banking. And it reduces the time and the effort for using the service. It enables the company to make a business against global customers. On the other hand, from the company perspective, it has a lot of potential that affect market share and reduce the costs of human and material resources which used to operate and support branches. However, it needs many efforts to reach at the stage of completion. And We will have to solve the problems that develop many contents, expend the range of services and raise the service convenience.

서울의 일교차 주말효과와 에어러솔과의 연관성

김병곤(Byung-Gon Kim),김유준(Yoo-Jun Kim),은승희(Seung-Hee Eun),최민혁(Min-Hyuck Choi) 한국기상학회 2007 대기 Vol.17 No.2

Aspergillus terreus에 의한 Lovastatin 생산에 배지성분이 미치는 영향

김병곤(Byung-Gon Kim),정용섭(Yong-Seob Jeong),전계택(Gie-Taek Chun),이영행(Young-Haeng Lee) 한국생물공학회 1999 KSBB Journal Vol.14 No.1

다차원 인덱싱 구조에서의 k-근접객체질의 처리 방안

김병곤(Byung-Gon Kim),오성균(Sung-Kyun Oh) 한국컴퓨터정보학회 2005 韓國컴퓨터情報學會論文誌 Vol.10 No.1

최근에 데이터베이스 응용분야에서 내용기반의 검색이 가능한 이미지 데이터와 같은 다차원 정보 처리에 대한 관심이 고조되고 있다. 따라서 다차원 데이터를 효율적으로 저장하고, 사용자가 원하는 질의 결과 를 신속히 제공하는 것이 중요한 연구분야이다. 다차원의 데이터에 대한 질의는 대표적으로 영역질의 (Range Query)와 최근접객체검색질의(Nearest Neighbor Query)로 나눌 수 있다. 본 논문에서는 R*-tree와 같은 다차원의 인덱싱 구조에서 효율적이고 빠른 k-근접객체검색질의를 수행하기 위한 방안을 제시한다. k-근접객체검색질의는 질의 객체로부터 가장 근접한 k개의 객체를 반환하는 것이다. 본 논문은 이를 위하여 가지치기(Pruning) 기법을 이용하여 검색 공간을 줄이는 방법을 사용하였다. 실험을 통하여 제안된 전략의 오버헤드와 이득을 보였으며, 마지막으로 가장 효율적인 전략의 사용을 제안하였다. Recently, query processing techniques for the multi-dimensional data like images have been widely used to perform content-based retrieval of the data. Range Quesy and Nearest neighbor query are widly used multi dimensional queries. This paper proposes the efficient pruning strategies for k-nearest neighbor query in R-tree variants indexing structures. Pruning strategy is important for the multi-dimensional indexing query processing so that search space can be reduced. We analyzed the pruning strategies and perform experiments to show overhead and the profit of the strategies. Finally, we propose best use of the strategies.

인터넷상의 온톨로지간의 P2P 질의처리 방안

김병곤(Byung-gon Kim),오성균(Sung-Kyun Oh) 한국디지털콘텐츠학회 2009 한국디지털콘텐츠학회논문지 Vol.10 No.2