• The Transactions of the Korea Information Processing Society
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• v.4 no.2
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• pp.395-400
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• 1997

An important quality characteristic of a software reliability.Software reliablilty growh models prvied the tools to evluate and moniter the reliabolty growth behavior of the sofwate during the testing phase Therefore failure data collected during the testing phase should be continmuosly analyzed on the basis of some selected software reliability growth models.For the cases where nonhomogeneous Poisson proxess models are the candiate models,we suggest Poisson regression model, which expresses the relationship between the expeted and actual failures counts in disjonint time intervals,for analyzing the failure count data.The weighted lest squares method is then used to-estimate the paramethers in the parameters in the model:The resulting estimators are equivalent to the maximum likelihood estimators. The method is illustrated by analyzing the failutr count data gathered from a large- scale switchong system.

• Geotechnical Engineering
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• v.12 no.2
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• pp.59-70
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• 1996

The EPS has the unit weight of only 20~30kg/m3 and is used as one of the methods of reducing road embankment loads. Parts of it's applications are for backfill materials of structures like abutment, retaining wall, etc., to reduce horizontal earth pressure and for banking materials to secure the safety of settlement and bearing capacity by minimizing the stress Increment. However, the Korean Standards (KS) has not yet proposed any testing method for use of EPS as a engineering banking material. Only its testing and quality ordinance as a heat insulation material has been standardized. Therefore, in Korea, EPS is used as banking material without any systematic testing data as a civil engineering material. In this point of view, this paper deals with the engineering characteristics of EPS through many laboratory tests on strength, strain, absorption, and creep. from the results achived through tests, this paper proposes the enactment of a suitable quality testing ordinance and the criteria of unconfined design strength of EPS for use as engineering material.

• Journal of the Korean Institute of Illuminating and Electrical Installation Engineers
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• v.21 no.4
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• pp.36-44
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• 2007

This study researched the mutual relationship between elevator emergencies(sudden stops, entrapment) and power quality such as voltage interruptions or sags. To analyze the power quality at the elevator switchboard of an apartment, the on-line power quality(sag, swell, and interruption, etc.) were measured and error messages(under voltage error, etc.) in the elevator control room were researched. Also the performance and susceptibility for stops were evaluated and stated through the testing of three pieces of simulated test equipment with an EN12016(2004) standard setting and the magnitude and duration data of the measured sag or interruption. This paper will use these data in the analysis of the mutual relationship between power quality and elevator emergencies.

• Journal of Korean Society for Quality Management
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• v.41 no.3
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• pp.327-335
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• 2013

Purpose: The purpose of this study is to suggest the modified 'Korean Standard-Quality Excellence Index' model and analyze the improvement effect with survey data by comparing the properness between current and suggested model result. Methods: The collected data through the survey were analyzed using paired t-test and unbalanced ANOVA method for testing the consistency of two customer satisfaction evaluating categories and comparing the current model to suggested model for confirming the improvement of performance. Results: The statistical analysis result shows that adjusted model using prior information improves the consistency between two customer satisfaction in case of short life-cycle product. Also long life-cycle product case, the result shows difference gap decreasing with same direction. Conclusion: Considering statistical model for QEI reflecting the characteristic of product group such as life cycle seems to be meaningful. Since index may be compared yearly base for checking the trend, careful approaching without big change should be considered for application.

• The Journal of Asian Finance, Economics and Business
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• v.7 no.10
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• pp.795-802
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• 2020

This study seeks to determine the effect of the application of accounting information system (AIS), internal control system, and human resource (HR) competency on the quality of local government financial statements (FS). This study uses agency theory and compliance theory. Agency theory is used to explain that there is a link between the society as the principal and the government as the agent. Compliance theory is a theory, which states that every agency is obliged to comply with regulations because the law-drafting authority has the right to dictate behavior. The population in this study were employees of the financial division of local government organizations in one of the districts in Central Java, Indonesia. The total samples in this study was 106 respondents. The data used are primary data taken from distributing questionnaires to respondents. The method of analysis used to test the hypothesis was multiple linear regression analysis. The results of hypothesis testing indicate that HR competency has an effect on the quality of FS; however, the application of AIS and internal control system has no effect on the quality of FS. The implication of this research underlines the importance of HR competency to improve the quality of local government FS.

• The Journal of Economics, Marketing and Management
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• v.11 no.1
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• pp.45-52
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• 2023

Purpose: The purpose of this study is to investigate the relationship between service quality, destination image, and tourist satisfaction for foreign tourists visiting Korea, and in particular, to analyze the moderating effect of psychological power in the relationship. Research design, data, and methodology: A research model was derived through existing literature research and a survey was conducted on foreign tourists visiting Korea. Structural equation model of SPSS and AMOS24.0 were used for data analysis and hypothesis testing. Results: The tourism service quality affects the image of tourist attractions. Images of tourist attractions were found to affect tourism satisfaction. It was found that the lower the psychological power, the greater the effect on the relationship between service quality and image, and the relationship between image and satisfaction. Conclusions: This study demonstrated that service quality at travel destinations is a key factor in order to enhance the image and satisfaction of Korean tourist destinations for foreigners visiting Korea. On the other hand, since the image and satisfaction level of the tourism destination vary depending on personal factors such as psychological power, it suggests that travel industry workers or researchers should develop and operate services tailored to the individual characteristics of the tourists.

• Journal of Korean Society for Quality Management
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• v.39 no.4
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• pp.543-555
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• 2011

In recent years, Social Network Service (SNS) have increasingly gained popularity and have simplified and amplified social interaction between online users. This paper mainly discusses the user satisfaction and intention of continuous use. Based on the literature review, two hypotheses were developed and research model is built for testing. Data was collected through questionnaire survey from 260 SNS college student user. The empirical results shows a significant mediating effect for user satisfaction in the relationship between SNS' quality factors and intention to continued use.

• Journal of Information Technology Applications and Management
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• v.14 no.4
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• pp.221-233
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• 2007

Which factors should influence consumer consideration to subscribe to Voice over Internet Protocol (VoIP)? Policy issues, managerial concerns, and demographic variables are possible factors. This paper discusses policy and managerial issues regarding VoIP adoption. A model that explains VoIP adoption is proposed and tested. This study analyzes a survey of 750 prospective VoIP users in Korea. The testing is accompanied by logistic regression and discriminant analysis. The results show that trust in VoIP, relative comparison of Quality to fixed service, numbering plan, satisfactions of call Quality and customer services on both fixed and mobile services have impacts on the adoption of VoIP. Implications for VoIP providers and policy makers are presented.

• Journal of the Korean housing association
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• v.7 no.1
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• pp.1-13
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• 1996

The objective of this study was to investigate changes in housing quality and residential satisfaction among the New Town movers. Numerous literatures pertaning to the subject were thoroughly reviewed, and a set of hypotheses was drawn therefrom. Methodology applied to the study included bivariate and multivariate analyses for both derivation of descriptive statistics and hypotheses testing. SPSS PC+ for window(version 6.2) was used to analyze the data collected by Korea Research Institute for Human Settlements(KRIHS) in 1993. The major findings are highlited as follows : 1) Regardless of the household income level and other characteristics housing quality has improved substantially by moving to new towns. 2) The level of residential satisfaction is increased as a result of moving to new towns. 3) Upward changes in housing quality strongly influence the change in residential satisfaction. Both variables to be highly correlated. 4) These most satisfied residents are those who moved to the large size of dwellings and they are mostly high income families.

• Journal of Korea Multimedia Society
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• v.24 no.10
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• pp.1403-1413
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• 2021

In this paper, we investigate automated data validation techniques for artificial intelligence training, and also disclose open-source frameworks, such as Google's TensorFlow Data Validation (TFDV), that support automated data validation in the AI model development process. We also introduce an experimental study using public data sets to demonstrate the effectiveness of the open-source data validation framework. In particular, we presents experimental results of the data validation functions for schema testing and discuss the limitations of the current open-source frameworks for semantic data. Last, we introduce the latest studies for the semantic data validation using machine learning techniques.