• Asia pacific journal of information systems
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• 제17권4호
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• pp.61-95
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• 2007

Small-and-medium sized enterprises(SMEs) represent quite a large proportion of the industry as a whole in terms of the number of enterprises or employees. However researches on information system so far have focused on large companies, probably because SMEs were not so active in introducing information systems as larger enterprises. SMEs are now increasingly bringing in information systems such as ERP(Enterprise Resource Planning Systems) and some of the companies already entered the stage of ongoing use. Accordingly, researches should deal with the use of information systems by SME s operating under different conditions from large companies. This study examined factors and mechanism inducing faithful appropriation of information systems, in particular integrative systems such as ERP, in view of individuals` active feedback-seeking behavior. There are three factors expected to affect end users` feedback-seeking behavior for faithful appropriation of information systems. They are management support, peer IT champ support, and IT staff support. The main focus of the study is on how these factors affect feedback-seeking behavior and whether the feedback-seeking behavior plays the role of mediator for realizing faithful appropriation of information systems by end users. To examine the research model and the hypotheses, this study employed an empirical method based on a field survey. The survey used measurements mostly employed and verified by previous researches, while some of the measurements had gone through minor modifications for the purpose of the study. The survey respondents are individual employees of SMEs that have been using ERP for one year or longer. To prevent common method bias, Task-Technology Fit items used as the control variable were made to be answered by different respondents. In total, 127 pairs of valid questionnaires were collected and used for the analysis. The PLS(Partial Least Squares) approach to structural equation modeling(PLS-Graph v.3.0) was used as our data analysis strategy because of its ability to model both formative and reflective latent constructs under small-and medium-size samples. The analysis shows Reliability, Construct Validity and Discriminant Validity are appropriate. The path analysis results are as follows; first, the more there is peer IT champ support, the more the end user is likely to show feedback-seeking behavior(path-coefficient=0.230, t=2.28, p<0.05). In other words, if colleagues proficient in information system use recognize the importance of their help, pass on what they have found to be an effective way of using the system or correct others' misuse, ordinary end users will be able to seek feedback on the faithfulness of their appropriation of information system without hesitation, because they know the convenience of getting help. Second, management support encourages ordinary end users to seek more feedback(path-coefficient=0.271, t=3.06, p<0.01) by affecting the end users' perceived value of feedback(path-coefficient=0.401, t=6.01, p<0.01). Management support is far more influential than other factors that when the management of an SME well understands the benefit of ERP, promotes its faithful appropriation and pays attention to employees' satisfaction with the system, employees will make deliberate efforts for faithful appropriation of the system. However, the third factor, IT staff support was found not to be conducive to feedback-seeking behavior from end users(path-coefficient=0.174, t=1.83). This is partly attributable to the fundamental reason that there is little support for end users from IT staff in SMEs. Even when IT staff provides support, end users may find it less important than that from coworkers more familiar with the end users' job. Meanwhile, the more end users seek feedback and attempt to find ways of faithful appropriation of information systems, the more likely the users will be able to deploy the system according to the purpose the system was originally meant for(path-coefficient=0.35, t=2.88, p<0.01). Finally, the mediation effect analysis confirmed the mediation effect of feedback-seeking behavior. By confirming the mediation effect of feedback-seeking behavior, this study draws attention to the importance of feedback-seeking behavior that has long been overlooked in research about information system use. This study also explores the factors that promote feedback-seeking behavior which in result could affect end user`s faithful appropriation of information systems. In addition, this study provides insight about which inducements or resources SMEs should offer to promote individual users' feedback-seeking behavior when formal and sufficient support from IT staff or an outside information system provider is hardly expected. As the study results show, under the business environment of SMEs, help from skilled colleagues and the management plays a critical role. Therefore, SMEs should seriously consider how to utilize skilled peer information system users, while the management should pay keen attention to end users and support them to make the most of information systems.

• 융합신호처리학회 학술대회논문집
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• 한국신호처리시스템학회 2001년도 하계 학술대회 논문집(KISPS SUMMER CONFERENCE 2001
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• pp.97-100
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• 2001

본 논문은 2자유도 평행링크 로봇의 고속궤적 추적시 링크간의 간섭을 최소화하고 시스템의 불확실성에도 불구하고 설계사양을 만족하는 제어기 설계방법을 소개한다. 이를 위해 ICD기법으로 평행링크 로봇의 채널을 분리하고 QFT를 이용해서 각 채널의 제어기를 설계한다. 마지막으로 시뮬레이션과 실험을 통해 QFT 제어기의 강인성과 우수성을 확인한다.

• 정보교육학회논문지
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• 제25권5호
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• pp.825-834
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• 2021

본 연구에서는 초등학생 5, 6학년을 대상으로 소프트웨어 실습 교육과정을 실시간 화상 수업으로 운영한 후 학습자 만족도와 교사 심층 인터뷰를 분석하였다. 학습자의 실재감, 수업전반, 상호작용, 실시간 화상 수업 만족도의 상관관계를 분석한 결과 실재감, 수업전반, 상호작용, 실시간 화상 수업 만족도는 다소 높은 정적인 상관관계가 있는 것으로 나타났고, 실시간 화상 수업 참여환경과 수업 만족도 사이에는 약간의 차이가 있었지만 모두 통계적으로는 유의하지 않은 것으로 나타났다. 교사의 경우 학생들의 개인별 PC 환경 및 수업 교구에서 발생하는 문제, 모둠 활동에서 학생들간의 상호작용, 부진 학생에 대한 개별 피드백에 상대적으로 어려움을 느끼고 있었다. 이를 해결하기 위해 실시간 화상 수업 참여환경에 대한 사전 안내, 수업 교구의 사전 점검 안내문 및 예비부품 제공, 보조강사를 활용한 부진 학생 및 접속 오류 지원, LMS를 활용한 개별 과제 피드백 실시 등에 대한 의견을 제시하였다.

• 한국콘텐츠학회논문지
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• 제7권2호
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• pp.150-160
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• 2007

교실수업에서는 지속적인 면대면 피드백을 통해 학습동기를 부여하고 학습 성취 욕구를 충족시켜주어 몰입학습을 유도 할 수 있으나 이러닝에서는 교실수업에 준하는 상호작용수준에 미치지 못하고 있어 많은 학습자들이 중도탈락이나 포기를 하고 있는 실정이다. 이러한 이러닝 환경에서의 문제점을 개선하고자 본 연구에서는 교실수업에서 사용하는 대화 피드백을 시스템에서 제공해 주어 학습자의 몰입학습을 증진시키는 대화 기반 피드백 시스템을 개발하였다. 개발된 시스템을 학교 현장에 적용해 보았으며, 그 결과 실험집단이 통제집단에 비해 학습자 개인에게 명확한 학습 목표의식과 도전감, 구체적인 피드백이 이루어져 몰입학습을 증진시킨 것으로 나타났다. 이는 본 시스템에서 제공해 주는 대화 기반 피드백이 학습자에게 적극적인 학습참여 자세를 배양하였고 학습의 흥미와 관심을 유지시켜 몰입학습을 유도하였음을 시사하고 있다. 끝으로 본 연구가 가지는 의의로 이러닝 환경에서 새로운 학습 시스템의 개발 방향을 제시하였다고 결론지을 수 있다.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제6권2호
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• pp.91-102
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• 2017

많은 웨어러블 스마트 피트니스 장치들이 심박수와 관련된 서비스를 제공한다. 이러한 서비스는 통계를 기반으로 사전 결정한 고정 수치를 기준으로 이용한다. 그러나 사람들의 신체조건은 개개인마다 다르기 때문에, 모든 개개인을 같은 기준으로 적용하는 서비스는 신뢰성이 낮다. 본 논문에서는 사용자의 운동 능력에 맞추어 심박수의 기준이 변동하는 피드백-RFC 모델과, 모델을 구현하는 방법을 제안한다. 그리고 12명의 실험참가자들로부터 심장박동 데이터를 수집하여 모델을 평가함으로써 제안 모델의 효용성을 보인다.

• 한국간호교육학회지
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• 제20권4호
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• pp.577-586
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• 2014

Purpose: This study investigates patterns of small group interaction and examines the influence among graduate nursing students of online collaborative learning strategies on small group interaction patterns, task performance and learning attitude in web-based team learning environments. Method: To analyze patterns of small group interaction, group discussion dialogues were reviewed by two instructors. Groups were divided into two categories depending on the type of feedback given (passive or active). For task performance, evaluation of learning processes and numbers of postings were examined. Learning attitude toward group study and coursework were measured via scales. Results: Explorative interactions were still low among graduate nursing students. Among the students given active feedback, considerable individual variability in interaction frequency was revealed and some students did not show any specific type of interaction pattern. Whether given active or passive feedback, groups exhibited no significant differences in terms of task performance and learning attitude. Also, frequent group interaction was significantly related to greater task performance. Conclusion: Active feedback strategies should be modified to improve task performance and learning attitude among graduate nursing students.

• 제어로봇시스템학회:학술대회논문집
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• 제어로봇시스템학회 2003년도 ICCAS
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• pp.2641-2647
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• 2003

Conventional DLLs estimate the delay times of satellite signals individually and feed back these measurements to the VCO independently. But VDLL estimates delay times and user position directly and then estimate the feedback term for VCO using the estimated position changes. In this process, input measurements are treated as vectors and these vectors are used for navigation. First advantage of VDLL is that noise is reduced in all of the tracking channels making them less likely to enter the nonlinear region and fall below threshold. Second is that VDLL can operate successfully when the conventional independent parallel DLL approach fails completely. It means that VDLL receiver can get enough total signal power to track successfully to obtain accurate position estimates under the same conditions where the signal strength from each individual satellite is so low or week that none of the individual scalar DLL can remain in lock when operating independently. To operate VDLL successfully, it needs to know the initial user dynamics and position and prevents total system from the divergence. The suggested integration method is to use the inertial navigation system to provide initial dynamics for VDLL and to maintain total system stable. We designed the GPS/INS integrated navigation system. This new type of integrated system contained the vector pseudorange format generation block, VDLL signal processing block, position estimation block and the conversion block from position change to delay time feedback term aided by INS.

• 유통과학연구
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• 제13권10호
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• pp.35-44
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• 2015

Purpose - This study focuses on the voluntary performance of franchise customers as a result of inherent social motives. It examines the interplay between traits and motives, and their influence on customer citizenship behavior (CCB). Research design, data, and methodology - Empirical evidence from the responses of 288 university students, validates that individual traits are related to social motives, which provides a basis for CCB. The results suggest that social motives do influence an individual's intention to provide feedback, advocate, help, or tolerate. Structural Equation Modeling using AMOS 22 was employed to test the concept. Results - This research illustrates that extraversion has a dominant influence on affiliation motive, and agreeableness is a strong predictor of the altruism motive among franchise customers. Conclusion - All three traits have positive influence on the power motive. Power and altruism motives were found to be the main determinants of CCB in a social setting. The power motive was a better predictor of advocacy and tolerance. The altruism motive significantly predicted helping and tolerance. Feedback was only positively predicted by the affiliation motive.

• 천문학회보
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• 제41권1호
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• pp.34.2-34.2
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• 2016

X-ray cavities are typically detected as surface brightness depression in X-ray diffuse emission from hot gas in high resolution X-ray images (i.e., Chandra and XMM-Newton). Showing the coincidence of location with radio jets, X-ray cavities imply that the radio jets interact with interstellar/intergalactic medium. It is important to understand them since they can be a clue of understanding AGN feedback to their host galaxies. To understand the physics of the AGN feedback, X-ray cavity has been actively studied while there are only a few statistical studies on X-ray cavity based on small or incomplete samples. Hence, a systematic study with a large sample is needed. With the condition of sufficient X-ray photons to detect surface brightness depression, we constructed a large sample of 133 galaxy clusters, galaxy groups, and individual galaxies to investigate X-ray cavities. We detected 201 cavities from 94 objects using two detection methods (i.e., beta-modeling and unsharp masking method), and confirmed the cavity size-distance relation over a large dynamical range. The size-distance relation does not vary for different environments (i.e., galaxy cluster, groups, and individual galaxies), suggesting that there is little environmental effect on the formation of X-ray cavity.

• 컴퓨터교육학회논문지
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• 제9권2호
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• pp.69-78
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• 2006

교육평가란 학습자들을 서열별로 등급화 하는 과정이 아니라 적절한 평가를 통해 학습자의 문제를 해결하고 교육 과정을 개선하여 교육적 효과를 높이는 과정이다. 기존의 웹 기반 평가 시스템은 학습자의 인지 수준을 정 오답 이분 변수로만 측정하였다. 또한 수준별 평가를 지원하나 평가 시 학습동기 부여와 흥미를 이끌어 내는데 미흡하였으며, 평가 후 틀린 문제에 대한 피드백만을 제공하여 추후 학습 방향 설정과 재학습이 효율적으로 이루어지지 못한 문제점이 있다. 본 논문에서는 문제의 답지에 따라 학습자의 인지 능력을 좀 더 세밀하게 추정하고자 부분점수를 고려하여 문제를 출제하고 학습자의 수준을 평가하였으며 평가가 끝나면 학습 진단을 제공하여 피드백 학습이 효과적으로 이루어질 수 있도록 하였다.