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.

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.

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.

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.

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).

캐쉬메카니즘을 이용한 시맨틱 스키마 데이터 처리

김병곤(Byung-Gon Kim),오성균(Sung-Kyun Oh) 한국컴퓨터정보학회 2011 韓國컴퓨터情報學會論文誌 Vol.16 No.3

네크워크상의 분산되어 있는 정보를 접근하는 온톨로지와 같은 시맨틱 웹 정보 시스템에서는 효율적인 질의 처리를 위하여 질의 응답 시간을 줄여주는 향상된 캐쉬 메카니즘을 필요로 한다. 특히, P2P 네트워크 시스템은 웹 환경의 기본적인 하부 구조를 이루고 있으며, 질의가 발생하면, 소스 피어(Peer)로의 데이터 전송량을 줄이는 문제가 효율적인 질의 처리의 중요한 부분이다. 전통적인 데이터베이스 캐쉬 메카니즘으로부터 현재의 웹 환경에 적합한 질의 메카니즘들이 연구되어 왔으며, 질의 처리 결과를 캐쉬하는 것은 입력 질의 요구를 빠른 시간에 바로 사용자에게 전달할 수 있다. 웹 환경에서는 시맨틱 캐싱 방법이 연구되어 왔으며, 이는 캐쉬를 의미적인 영역들로 이루어진 공간으로 관리하는 개념이며, 논리적인 캐싱 단위가 질의와 질의 결과이므로 웹 환경에서 적합한 개념이다. 본 연구에서는 온톨로지와 같은 시맨틱 웹 정보가 클러스터 단위로 여러 피어에 분산되어 있는 경우에 캐쉬 메카니즘을 이용하여 효율적인 질의 처리가 이루어지도록 하는 방법을 제시한다. 특히, 캐쉬를 유지하고 처리하는 방법으로 스키마를 이용한 캐쉬 데이터 필터링 방법과 온톨로지와 질의 결과의 유사도를 측정하여 캐쉬 대체 영역 선택에 사용하는 방법을 제시한다. In semantic web information system like ontology that access distributed information from network, efficient query processing requires an advanced caching mechanism to reduce the query response time. P2P network system have become an important infra structure in web environment. In P2P network system, when the query is initiated, reducing the demand of data transformation to source peer is important aspect of efficient query processing. Caching of query and query result takes a particular advantage by adding or removing a query term. Many of the answers may already be cached and can be delivered to the user right away. In web environment, semantic caching method has been proposed which manages the cache as a collection of semantic regions. In this paper, we propose the semantic caching technique in cluster environment of peers. Especially, using schema data filtering technique and schema similarity cache replacement method, we enhanced the query processing efficiency.

SNS 사용자의 개인적ㆍ사회적 특성이 지속적 사용의도에 영향을 미치는 요인

김병곤(Byung-Gon Kim),윤일기(Il-Ki Yoon),박흥순(Heung-Soon Park) 한국데이타베이스학회 2016 Journal of information technology applications & m Vol.23 No.2

Investments in information and communication technologies (ICT) around the world have grown at an enormous rate over the past two decades, which reflects a new emphasis on consumer mobile devices. A social network service (SNS) is an online service that aims to build social relations among people who share interests and activities. The role of SNS is enormous for communicating ideas and opinions among social participants. The use of SNS has recently become one of the most popular social activities worldwide. This research investigated relation between personal characteristics, social characteristics and user satisfaction on SNS then, analyzed how these factors affecting continuance usage intention on SNS users. The conclusion is summarized as below. The study results show that informativeness, pleasure, innovativeness, relationship and empathy of SNS are having positive impact to some degree on the user satisfaction. Further, the user satisfaction of SNS users and quality of life have a positive impact on the continuance usage intention of SNS users. This results show that various SNS qualities are necessary to actively explore and obtain further information that users intend to find, while they are insufficient in function to provide the information other users require or exchange information with other users through the SNS.

줄기세포를 이용한 척수손상 치료의 현황과 전망

김병곤 ( Byung Gon Kim ),황동훈 ( Dong Hoon Hwang ),김은정 ( Eun Jeong Kim ),김승업 ( Seung U. Kim ) 한국조직공학과 재생의학회 2005 조직공학과 재생의학 Vol.2 No.4

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.

Aspergillus terreus의 발효조건이 lovastatin 생산에 미치는 영향

김병곤(Byung-Gon Kim),전계택(Gie-Taek Chun),정용섭(Yong-Seob Jeong) 한국생물공학회 2000 KSBB Journal Vol.15 No.5