• Journal of KIISE
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• v.44 no.7
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• pp.703-709
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• 2017

Outsourcing databases is to offload storage and computationally intensive tasks to the third party server. Therefore, data owners can manage big data, and handle queries from clients, without building a costly infrastructure. However, because of the insecurity of network systems, the third-party server may be untrusted, thus the query results from the server may be tampered with. This problem has motivated significant research efforts on authenticating various queries such as range query, kNN query, function query, etc. Although aggregation queries play a key role in analyzing big data, authenticating aggregation queries has not been extensively studied, and the previous works are not efficient for data with high dimension or a large number of distinct values. In this paper, we propose the AMR-tree that is a data structure, applied to authenticate aggregation queries. We also propose an efficient proof construction method and a verification method with the AMR-tree. Furthermore, we validate the performance of the proposed algorithm by conducting various experiments through changing parameters such as the number of distinct values, the number of records, and the dimension of data.

• Journal of Convergence for Information Technology
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• v.7 no.4
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• pp.27-38
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• 2017

The purpose of this study was to ascertain new policies fo the development of the Korean Hospital Accreditation Program (HAP) by comparing and reviewing the domestic HAP of Korea, the U. S. and Australia as well as the International Accreditation Program of the International Society for Health Care Quality. The results of this study are as follows. First, it is necessary to improve the standards of the HAP such as 'patient and community centered standards' and 'staffing related standards'. Second, it is necessary to strengthen patient safety through the HAP. Third, the linkage among the HAP, clinical indicators and patient experience evaluation should be strengthened. Fourth, the competencies of surveyors should be improved. Fifth, the HAP of small and medium hospitals also needs to be vitalized. Sixth, it is necessary to improve the disclosure of the healthcare quality evaluation results. The findings of this study can be used as a basis to improve the Korean HAP.

• Korean Journal of Comparative Education
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• v.24 no.3
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• pp.245-265
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• 2014

The purpose of this research is to find the features of HLC institutional accreditation model and the implication on the second period institutional accreditation of Korea. This research focus on accreditation model, accreditation period, comprehensive evaluation, criteria, decision making for accreditation status and accreditation supporting system. This research draws following suggestions to the second period institutional accreditation of Korea. 1. The institutional accreditation should apply various accreditation models according to the features of institute. 2. The institutional accreditation should focus on the autonomous quality improvement of institute with the quality assurance. 3. The quantitative evaluation should be reduced and qualitative evaluation based on mission and objects should be reinforced. 4. The interim evaluation should be strictly enforced for quality improvement. 5. The government should enlarge reflection the results of accreditation on financial aid to universities. 6. The web-based accreditation supporting system interworking with "Higher Education in Korea" service is needed.

• The Journal of the Korea Contents Association
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• v.20 no.7
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• pp.233-243
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• 2020

This study investigated the internal accreditation system of A University which is a quality management system of curriculum that allows departments to examine the curriculum of itself. The results showed that the internal accreditation improved satisfaction of students in four areas: education goal & curriculum organization, curriculum implementation, support for curriculum, and curriculum development. It was also found that the system improved core competencies of students. Lastly, the students' evaluation for lecture was significantly improved compared with evaluation before internal accreditation. Based on these results, the study provided basic data for the design of internal accreditation system at A university.

• Journal of Digital Convergence
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• v.13 no.7
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• pp.283-292
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• 2015

The purpose of this study was to confirm the complex relationship between patient safety-medical quality and hospital management activities to observe the mediating effect of organizational culture in the relationship due to healthcare accreditation adoption. For this, we conducted a 4 weeks survey, from September 22, 2014 to October 17, 2014 to the employees of 6 hospitals that could accommodate less than 300 patients or more than 300 patients located in Daegu and Gyeongbuk. The study includes 377 participants who have worked for more than one year in the hospital. All of hospital with less than 300-beds or more than 300-beds, such as patient safety-medical quality, organizational culture, hospital management activities found a positive correlation among variables. The mediating effect of organizational culture in the relationship between patient safety-medical quality and hospital management activities was shown by the partial mediating effect and high causal effect. Therefore, these study suggest that patient safety-medical quality due to healthcare accreditation adoption has the potential to improve hospital management activities.

• Product Safety
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• s.201
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• pp.62-65
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• 2010

우리나라의 전기용품안전관리법은 1974년 1월 4일자로 공포되어 30년이 넘게 운영되어 오고 있습니다. 특히, 2009년 1월 1일부터 전면 개정 시행됨에 따라 "KC마크, 자율안전확인제도"등이 신규운영됩니다. 이와 관련하여 업체에서 궁금한 점을 질의한 것을 기술표준원에서 응답한 내용중 꼭 숙지해야한다고 판단되는 질의응답을 게제하오니 전기용품 제조 수입 업체의 많은 참조가 있기를 바랍니다.

• Product Safety
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• s.181
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• pp.84-85
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• 2009

우리나라의 전기용품안전관리법은 1974년 1월 4일자로 공포되어 30년이 넘게 운영되어 오고 있습니다. 몇차례의 개정을 통해 2009년 1월 1일부터 "자율안전확인제도"가 운영되는 등 많은 변화가 예상되고 있습니다. 이와 관련하여 업체에서 궁금한 점을 질의한 것을 기술표준원 전기통신제품안전과에서 응답한 내용중 꼭 숙지하여야 한다고 판단되는 질의와 응답을 여기에 게재하오니 전기용품제조 수입 업체의 많은 참조가 있기를 바랍니다.

• Product Safety
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• s.202
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• pp.70-73
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• 2010

우리나라의 전기용품안전관리법은 1974년 1월 4일자로 공포되어 30년이 넘게 운영되어 오고 있습니다. 특히, 2009년 1월 1일부터 전면 개정 시행됨에 따라 "KC마크, 자율안전확인제도"등이 신규운영됩니다. 이와 관련하여 업체에서 궁금한 점을 질의한 것을 기술표준원에서 응답한 내용중 꼭 숙지해야한다고 판단되는 질의응답을 게제하오니 전기용품제조 수입 업체의 많은 참조가 있기를 바랍니다.

• Product Safety
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• s.180
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• pp.56-57
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• 2008

우리나라의 전기용품안전관리법은 1974년 1월 4일자로 공포되어 30년이 넘게 운영되어 오고 있습니다. 몇차례의 개정을 통해 2009년 1월 1일부터 "자율안전확인제도"가 운영되는 등 많은 변화가 예상되고 있습니다. 이와 관련하여 업체에서 궁금한 점을 질의한 것을 기술표준원 전기통신제품안전과에서 응답한 내용중 꼭 숙지하여야 한다고 판단되는 질의와 응답을 여기에 게재하오니 전기용품제조 수입 업체의 많은 참조가 있기를 바랍니다.

• Product Safety
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• s.191
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• pp.36-37
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• 2009

우리나라의 전기용품안전관리법은 1974년 1월 4일자로 공포되어 30년이 넘게 운영되어 오고 있습니다. 특히, 2009년 1월 1일부터 전면 개정 시행됨에 따라 "KC마크, 자율안전확인제도" 등이 신규운영됩니다. 이와 관련하여 업체에서 궁금한 점을 질의한 것을 기술표준원에서 응답한 내용중 꼭 숙지해야한다고 판단되는 질의응답을 제개하오니 전기용품제조 수입 업체의 많은 참조가 있기를 바랍니다.