There are various cases that we vote for making a decision or combining ideas (i.e. human being's opinions) in group meetings. Group Decision Support System(GDSS) provides us with a number of voting methods for decision making or aggregation of the ideas. It is generally difficult to select a voting method appropriate for given a meeting situation, without any aid of experts or computers having a knowledge on voting. In this paper we propose a supporting system for selecting an appropriate voting method. Since the selected method is recommended to the facilitator of GDSS, a part of time and effort related with the voting would be reduced. The knowledge in the system is represented as rules that are inductively generated from examples of voting. We used UNiK-INDUCE with ID3 algorithm so as to learn, which is a tool of developing expert systems.

It has been argued theoretically and empirically that the analysis of business processes requires the decomposition of an integrated system. However, in order to innovate a business process, cognitive integration activities that try to understand the decomposed features of the business process as an integrated system are essential. This research aims at 1) empirically investigating the cognitive process of integrating multiple diagrams while using object-oriented methodologies in process modeling ; 2) identifying a cognitive integration strategy that supports the successful comprehension of business processes with the use of multiple diagrams ; and 3) proposing guidelines for developing supporting tools for effective business process engineering by using object-oriented process modeling.

최근 들어 많은 정보 시스템들이 클라이언트/서버 환경에서 개발되고 있다. 클라이언트/서버 정보 시스템은 기존의 정보 시스템에 비해 복잡도가 높은 시스템이므로, 시스템 개발 시 체계적인 개발 방법론의 적용이 필요하다. 객체 지향 개발 방법론은 객체 지향 개념에 기반하여 시스템의 재사용성, 확장성, 신뢰성, Scalability를 증진시킬 수 있는 방법론이다. 본 연구에서는 객체 지향 방법론에서 클라이언트/서버 정보 시스템 설계 작업을 체계적으로 수행하기 위한 기법과 절차를 제시한다. 이러한 기법은 설계 작업시 사용자 인터페이스에 대한 충분한 고려가 가능하고, 설계 객체의 규명을 체계적으로 지원하고, 응용 시스템 논리를 일관성 있게 배분할 수 있도록 도와준다. 한국과학기술원의 인텔리전트 캠퍼스 프로젝트에서 개발된 학사 시스템의 적용 사례와 함께 본 연구에서 제시하고 있는 객체 지향 설계 기법에 대해 소개한다.

The accuracy of knowledge is a major concern for expert system developers and users. Machine learning approaches have recently been found to be useful in knowledge acquisition for expert systems. However, the accuracy of concept acquired from machine learning could not be analyzed in most cases. In this paper we develop a comprehensive knowledge error analysis methodology for practical use of expert systems. Decision tree induction is an important type of machine learning method for business expert systems. Here we start to analyze with knowledge acquired from decision tree induction method, and extend the results to develop error analysis methodology for general machine learning methods. We give several examples and illustrations for these results. We also discuss the applicability of these results to multistrategy learning approaches.

본 연구에서는 인터넷 환경에서 그룹의사결정시스템(GDSS)을 활용하기 위해 현재의 인터넷 기능개선 방향에 대해 분석하였다. 이를 위해 먼저 그룹의사결정지시스템의 요구사항을 기존의 문헌을 통해 정보전달, 의사결정 지원 정보제공 및 정보전달 흐름제어로 분류하였다. 다음에는 각 분야별로 현재의 인터넷이 가지고 있는 한계를 분석하고 이러한 한계를 극복할 수 있는 기술적인 대안들을 OSI 계층별로 분석하였다. 분석결과 현재의 인터넷에서 응용 프로그램과 TCP/IP계층 사이에 전달정보흐름 추적기능(Tracing), 응용 프로그램 코딩기능(Application Dependent Coding), 정보전달모드 제어기능(communication Mode Selection) 및 정보보안기능(Encoding/Decoding)이 추가되는 것으로 분석되었다. 또한 링크계층에는 셀교환 방식이 적합한 것으로 분석되었다. 본 연구의 결과는 그룹의사결정지원시스템 디자인 및 향후 인터넷 화상회의를 위한 시스템 디자인에서도 유용하게 적용될 수 있을 것으로 판단된다.

This paper is primarily focused on the function of model management systems such as higher level representations and buildings of optimization models using them, especially in the area of the telecommunication network models. This research attempts to provide the model builders an intuitive language-namely higher level representation-using five distinctivenesses : Objective, Node, Link, Topological Constraint including five components, and Decision. The paper elaborates all components included in each of distinctivenesses extracted from structural characteristics of typical telecommunication network models. Higher level representations represented with five distinctivenesses should be converted into base level representations which are employed for semantic representations of linear and integer programming problems in knowledge: assisted optimization modeling system(UNIK-OPT). Furthermore, for formulating the network model using higher level representations, the reasoning process is proposed. A system called UNIK-NET is developed to implement the approach proposed in this research, and the system is illustrated with an example of the network model.

The Objective of this study is empirically investigating organizational/managerial factors affecting BPR implementation. The contributions of this research project are two-fold. First, this research project provides empirically tested CSFs and CFF of BPR implementation. Especially, the influence of the organizational culture, structure, and managerial support on BPR implementation were thoroughly investigated. Second, this research found the combined effects of CSF and CFF. Top management commitment, leadership style, and collaborative work environment were found to negate employee resistance to a reengineered process and lead to a successful BPR implementation, especially when the level of employee resistance is high.

Information Systems(IS) departments face many challenges in today's rapidly changing environment. One approach to understanding the challenges by IS departments is to survey IS managers in order to elicit their key issues. The study compares and contrasts the major findings of key information systems management issues in Korea and United States. It examines the key concerns of IS managers on these areas focusing on identifying and explaining regional similarities and differences. IS managers in Korea and United States show a reasonable level of agreement on the most critical issues they face. In some of the issues the differences are found and possible reasons for these differences are discussed. The study concludes by suggesting an evolution model that can explain the changing nature of the IS issues across time and nations.

정보기술이 개인, 조직, 사회에 미치는 영향에 대해서 많은 연구가 있어왔으나 별반 뚜렷한 결론에 이르지 못하고 있다. 그 이유는 일차적으로 정보기술 영향연구를 주도할 연구모형의 부재에서 찾을 수 있다. 본 연구는 정보 기술 영향연구를 관찰영역, 조직개념의 인식, 분석수준의 관점에서 고찰하고 이를 토대로 정보기술 영향연구의 개념적 모형을 도출해 낸다. 또한 이를 바탕으로 정보기술 영향연구 수행의 지침들을 도출해 낸다.

Information systems outsourcing takes diverse forms for various reasons. In order to analyze the diverse types of outsourcing relationships between outsourcing vendors and clients, two dimensions of outsourcing decisions proposed by Nam et. al. (1996), "the extent of substitution by vendors" and "the strategic impact of outsourced IS applications", are utilized as a framework. Four cells depicting types of outsourcing relationships are described based on the two dimensions. This paper studies the outsourcing experiences of four representative firms selected from 15 case study firms located in the U.S. within the framework of the proposed four types of outsourcing relationships. The movement of four firms in terms of its outsourcing decision within and across the cells is examined in order to derive the managerial guidelines over time.