• 제목/요약/키워드: Group decisions

검색결과 313건 처리시간 0.042초

OMT를 이용한 그룹의사결정지원시스템의 설계 및 구현 (Design and Implementation of Group Decision Support System using Object-Oriented Modeling Technique)

  • 김성희;조성식;김선욱;박흥국
    • 산업공학
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    • 제10권1호
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    • pp.169-187
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    • 1997
  • Recently, in organizations many decisions are being made by groups. And the organization is changing a lot so are groups. To help decision making of changing groups, we need more flexible and more adaptive GDSS. Therefore one of the critical success factors of GDSS is flexibility and incremental improvement. Prior research on specifying design requirements of GDSS suggests generic design requirements. But they are too general to be incorporated directly into system design, because of the disparity between real group and ideal group that the researchers studied. Many design strategies that start from the generic design requirements thus have contingency variables that changes as the characteristics of group change. From the viewpoint of developers, these variables implicate the desirability of flexibility. To achieve flexibility we need new methodology of design and implementation. Nowadays, object-oriented analysis and design methodologies have been progressed to the point that many systems are being developed through these methodologies. In this paper, a design is proposed using Object-Oriented Modeling Techniques(OMT). Exploiting object-oriented paradigm results in a highly flexible and easily upgradable design.

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A Knowledge-based Interactive Idea Categorizer for Electronic Meeting Systems

  • Kim, Jae-Kyeong;Lee, Jae-Kwang
    • 한국지능정보시스템학회:학술대회논문집
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    • 한국지능정보시스템학회 2000년도 춘계정기학술대회 e-Business를 위한 지능형 정보기술 / 한국지능정보시스템학회
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    • pp.333-340
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    • 2000
  • Research on group decisions and electronic meeting systems have been increasing rapidly according to the widespread of Internet technology. Although various issues have been raised in empirical research, we will try to solve an issue on idea categorizing in the group decision making process of electronic meeting systems. Idea categorizing used at existing group decision support systems was performed in a top-down procedure and mostly b participants; manual work. This resulted in tacking as long in idea categorizing as it does for idea generating clustering an idea in multiple categories, and identifying almost similar redundant categories. However such methods have critical limitation in the electronic meeting systems, we suggest an intelligent idea categorizing methodology which is a bottom-up approach. This method consists of steps to present idea using keywords, identifying keywords' affinity, computing similarity among ideas, and clustering ideas. This methodology allows participants to interact iteratively for clear manifestation of ambiguous ideas. We also developed a prototype system, IIC (intelligent idea categorizer) and evaluated its performance using the comparision experimetn with other systems. IIC is not a general purposed system, but it produces a good result in a given specific domain.

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Audit Expectation Gap: Empirical Evidence from Vietnam

  • NGUYEN, Hieu Thanh;NGUYEN, Anh Huu
    • The Journal of Asian Finance, Economics and Business
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    • 제7권5호
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    • pp.51-60
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    • 2020
  • The paper examines the characteristics and causes of the expectation gap of audit and assurance services. The paper has conducted three surveys with three target groups. In the first survey, participants are auditors, users of audit reports are subject in the second survey and in the third survey, and students major in auditing are selected. The content of the survey aims to find out the differences in perception of the survey participants on two issues: (i) responsibilities of auditors for detection frauds, errors, protection of the enterprise's assets and financial scandals, and (ii) the role of audit and auditors in making investment decisions and investor's belief. The research carried out survey from March to September 2019 with 165 responds. The collected data was processed by statistical software SPSS, version 23, and Mann-Whitney U test was used to analyze the results of the audit expectation gap between the auditor group and the users of audit report group and between the student group and users of audit report group. The results showed that there exists an expectation gap in the responsibility of auditors for detection of all frauds, errors and protection enterprise's assets. Recommendations include strengthening audit standards, penalizing bad practices and ensuring auditor's independence.

A Knowledge based Interaction idea Categorizer for Electronic Meeting Systems

  • Kim, Jae-Kyeong;Lee, Jae-Kwang
    • 지능정보연구
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    • 제6권2호
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    • pp.63-76
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    • 2000
  • Research on group decisions and electroinc meeting systems have been increasing rapidly according to the widespread of Internet technology. Although various issues have been raised in empirical research, we will try to solve an issue on idea categorizing in the group decision making process of elecronic meeting systems. Idea categorizing used at existing group decision support systems was performed in a top-down procedure and mostly participants\` by manual work. This resulted in tacking as long in idea categorizing as it does for idea generating, clustering an idea in multiple categories, and identifying almost similar redundant categories. However such methods have critical limitation in the electronic meeting systems, we suggest an intelligent idea categorizing methodology which is a bottom-up approach. This method consists of steps to present idea using keywords, identifying keywords\` affinity, computing similarity among ideas, and clustering ideas. This methodology allows participants to interact iteratively for clear manifestation of ambiguous ideas. We also developed a prototype system, IIC (intelligent idea categorizer) and evaluated its performance using the comparision experimetn with other systems. IIC is not a general purposed system, but it produces a good result in a given specific domain.

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Decision Tree Model for Predicting Hospice Palliative Care Use in Terminal Cancer Patients

  • Lee, Hee-Ja;Na, Im-Il;Kang, Kyung-Ah
    • Journal of Hospice and Palliative Care
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    • 제24권3호
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    • pp.184-193
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    • 2021
  • Purpose: This study attempted to develop clinical guidelines to help patients use hospice and palliative care (HPC) at an appropriate time after writing physician orders for life-sustaining treatment (POLST) by identifying the characteristics of HPC use of patients with terminal cancer. Methods: This retrospective study was conducted to understand the characteristics of HPC use of patients with terminal cancer through decision tree analysis. The participants were 394 terminal cancer patients who were hospitalized at a cancer-specialized hospital in Seoul, South Korea and wrote POLST from January 1, 2019 to March 31, 2021. Results: The predictive model for the characteristics of HPC use showed three main nodes (living together, pain control, and period to death after writing POLST). The decision tree analysis of HPC use by terminal cancer patients showed that the most likely group to use HPC use was terminal cancer patients who had a cohabitant, received pain control, and died 2 months or more after writing a POLST. The probability of HPC usage rate in this group was 87.5%. The next most likely group to use HPC had a cohabitant and received pain control; 64.8% of this group used HPC. Finally, 55.1% of participants who had a cohabitant used HPC, which was a significantly higher proportion than that of participants who did not have a cohabitant (1.7%). Conclusion: This study provides meaningful clinical evidence to help make decisions on HPC use more easily at an appropriate time.

Development of a Structured Debriefing for Business Simulation Games and Its Effect on College Students' Business Knowledge and Entrepreneurship Competencies

  • Jieun LEE;Yugyeong KIM;Hyunwoo HWANG
    • Educational Technology International
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    • 제25권1호
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    • pp.93-127
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    • 2024
  • This study evaluates the effect of structured debriefing for a business simulation game for university students. The program provides an authentic learning experience of real-world business management by allowing learners to make decisions related to R&D, marketing, production, and finance through a business simulation game, and check the results in real time. In 2022, University A and B each ran a business simulation game-based program as an extra-curricular activity. University A conducted a traditional instructor-led debriefing where the instructor explained the summarized process and results, while University B implemented a structured debriefing which had been developed based on Gibbs' and 3D models. To assess the effect of the structured debriefing compared to the traditional instructor-led debriefing, business knowledge and entrepreneurship competencies were measured three times. Repeated measures ANOVA was used to test for the differences between the two groups and to examine interaction effects between group and time. The structured debriefing group achieved statistically significantly higher academic scores than the traditional instructor-led debriefing group at the post-test and in 2 weeks. There was no statistically significant difference between the groups in terms of entrepreneurship competencies. There was no interaction effect between group and time, both in academic achievement and in entrepreneurship competencies. In conclusion, the simulation game-based program integrated with the structured debriefing session is more likely to have a stronger impact on academic achievement and its retention.

Social Perceptions of Breast Cancer by Women Still Undergoing or Having Completed Therapy: a Qualitative Study

  • Mermer, Gulengul;Nazli, Aylin;Ceber, Esin
    • Asian Pacific Journal of Cancer Prevention
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    • 제17권2호
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    • pp.503-510
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    • 2016
  • Background: Diagnosis and treatment of breast cancer is a crisis situation which effects women's lives physically, socially and spiritually. Investigating women's perceptions of this disease is crucially important for treatment decisions. We therefore determined social perceptions and interpretations of women diagnosed with breast cancer during therapy and in the post-treatment period. Materials and Methods: In the study, focus group and in-depth interviews were made with women still undergoing or having completed breast cancer treatment. Some 25 women were included in the research. Content analysis was used in the analysis of the qualitative data obtained after the focus group and in-depth interviews. Results: Some of the women demonstrated positive perceptions towards accepting the disease, whereas others had emotions such as rebellion and anger. The loss of a breast is important with different interpretations. Conclusions: Women's acceptance or rebellion against the disease varies within their social interpretations after the treatment, as at the stage of diagnosis/treatment. All stages of breast cancer negatively affect the social life of the affected individual as much as her body. Nurses assume crucial roles in coping with these negative effects. Thus, it is necessary to know, and sociologically interpret, what is indicated by the information on what the negative effects concerning the disease are and how they are interpreted.

예비노인의 사전연명의료의향서 작성 여부에 따른 죽음불안과 품위있는 죽음태도의 차이 (Death Anxiety and Dignified Death Attitudes of Pre-Elderly Who Opt for Signing Advance Directives)

  • 양소명;황은희
    • 한국보건간호학회지
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    • 제34권2호
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    • pp.251-262
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    • 2020
  • Purpose: This study attempts to provide basic data for establishing and implementing an advanced directive (AD) system that helps identify dignified death attitudes and reduces death anxiety of the preliminary, through preparation of an AD. Methods: Data were collected from 135 preliminary elderly aged 55 to 64 years, recruited from health centers and welfare facilities. All data were analyzed using SPSS 22.0. Results: Overall scores of the participants were 2.26±0.64 for death anxiety scale, and 3.16±0.44 for dignified death attitude. Scores of individuals who prepared an AD were determined to be 2.19±0.64 for death anxiety, and 3.34±0.44 for dignity of death. The difference in scores obtained for dignified death attitude was significantly higher for the group that signed an AD, as compared to the group with no AD (F=14.81, p<0.001). Conclusions: Results of this study reveal that preliminary elderly who sign an AD have a higher dignified death attitude score as compared to subjects who do not sign an AD. Additionally, the former group of participants desire a dignified end to their life. This indicates a necessity to promote public campaigns for ADs, and to develop educational programs that assist the elderly to prepare for a dignified death and make autonomous decisions.

센서 모니터링을 활용한 토류구조물 상황전파 자동화 시스템 개발 (Development of automatic alert populating system of earth structures based on sensor monitoring)

  • 김용수;안상로;정재현;한상재;정승용
    • 한국지반공학회:학술대회논문집
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    • 한국지반공학회 2009년도 춘계 학술발표회
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    • pp.667-672
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    • 2009
  • Gathering information and systemization of infrastructure disaster management is to reduce uncertainties in making decisions and maximize the number of alternations. The key objects of a sensor-based progress report and propagation automation systems are to provide objective data, realize and support decision making and deliver them to a certain area, department, manager and other people rapidly. The major findings and results of this study are as follows. 1) Application of international standard-based alerting protocol(CAP; Common Alerting Protocol). 2) Development of database of existing progress report and propagation manual in order to achieve networking of safety management on major social infrastructure of the nation. 3) Development middleware application programs to progress report and propagation data using SMS, FAX, EMS, VMS, MMS.

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모바일 마케팅의 유형화와 패션 어플리케이션 이용 동기 (Typology of mobile marketing and fashion application usage motives)

  • 신현주;이규혜
    • 복식문화연구
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    • 제24권4호
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    • pp.483-497
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    • 2016
  • The importance of marketing on mobile platforms as well as mobile commerce is increasing dramatically in fashion industry. The purpose of this study was to categorize mobile fashion marketing strategies and to examine application usage motivations that influence brand attitude, purchase decisions, and post-purchase evaluation. Qualitative research methods, in particular focus-groups and in-depth interviews, were conducted to examine the typology of mobile marketing and fashion application usage motivations. Then, a modified survey was used to quantitatively examine what content consumers expect from fashion applications. Results of the qualitative study indicated that consumers perceive sensory (visual, tactile, auditory), relationship, information and practical marketing strategies through motives. Survey result from 229 consumers revealed four fashion application usage motives: sensory, relationship, information and practical. Based on these motives consumers were segmented into three groups: the experience/relationship-conscious, the product information-conscious, and the lifestyle information-conscious. The product information-conscious group showed higher level of monthly income and clothing expenses but lower level of mobile device usages. Lifestyle information-conscious group and experience/relationship-conscious group had higher level of attitude, and post-purchase evaluation. It was experience-relationship conscious consumers who spent more time in mobile use. This study shows a better understanding of mobile marketing environment of fashion applications.