• Quality Improvement in Health Care
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• v.6 no.1_2
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• pp.150-160
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• 1999

Background : Because hospitals had to faced with financial hardship, we have to have more effective hospital management. In this study, we tried to improve job performance and to reduce cost maintaining safety in fields of patients care. Methods : Central Supply Room(CSR) staffs taught strategy of material cost reduction to middle level managers and staffs 14 times. All staffs and voluntary service workers, working in 33 nursing units, participated in this activity. We developed questionnaire to check the degree of participate in cost reduction activity and job performance in CSR, and quality improvement in the wards. Two hundred questionnaires were distributed and 197 returned. Results : Because CSR staffs developed new items and every item was managed at each department, stocks of each department were reduced. Overall, by comparing before and after cost reduction activity, almost 1.2 billion won reduced for one year. Staffs' loyalty and spirits of cost reduction were improved by changing clothes and duty environment. Furthermore, these activity improved patients' satisfaction. Conclusion : We suggest that CSR activity in a university hospital contributes to improve job performance and to reduce cost without any problem in patient care.

• Journal of rehabilitation welfare engineering & assistive technology
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• v.11 no.2
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• pp.125-132
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• 2017

Intermittent pneumatic compression is frequently used for prophylaxis of deep vein thrombosis, however there is a lot of complains by frequent adverse event. In this paper, we analyzed the cause of adverse event and we tried to improve for the cause of machine, nurses, patients, system by diverse strategy. And we could improve the index of each cause, the rate of error was decreased finally. The proactive activity of quality improvement for medical device can contribute to decrease the error, that will improve the quality of medical service and achieve the safe medial culture.

• Food Science and Preservation
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• v.14 no.5
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• pp.516-525
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• 2007

The effect on quality improvement of Chokochujang by the addition of green tea extract (GT) was evaluated on the basis of total cell numbers, pH, acidity, sugar content and sensory evaluation during its storage at $25^{\circ}C$ and $37^{\circ}C$ for 3 weeks. A dorminant strain was isolated from the Chokochujang and identified as Bacillus amyloliquefaciens ER282 based on the 16S rDNA sequence. The ethanol extract from GT was investigated for its antibacterial activity aid showed good activities enough to use for Chokochujang as a natural preservative. Growth of microorganisms was significantly inhibited by adding GT extract to Chokochujang but pH, acidity, sugar content and color was not much changed. Sensory evaluation and overall preference, however, was continuously declined as storage period increased, whereas the addtion of 3% GT extract could delay the quality loss of Chokochujang during storage at $25^{\circ}C$ and $37^{\circ}C$ for 3 weeks.

• Journal of Korean Society for Quality Management
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• v.46 no.1
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• pp.1-10
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• 2018

Purpose: This paper provides an idea on the future prospect for change in steps of the six sigma DMAIC project under the environment of the 4th industrial revolution. Methods: First, the purpose and activities required in each step of DMAIC are reviewed. Next, activities are reviewed together with tools and techniques, considering the purpose and the environmental changes of the 4th Industrial Revolution. Finally, the best approaches for achieving the purpose are prospected to get an idea on future change. Results: The purpose of each phase of DMAIC is expected to remain unchanged. But activities, techniques, or methods will be replaced with more effective and efficient ones. Also, many activities may possibly be executed by a system instead of people like BB, GB or team members. Moreover, DMAIC may not be a project any more but a routine job of the system in the future. Conclusion: Under the environment of the 4th industrial revolution, many activities including analyzing various types of data and extracting valuable information, will be executed by a system with proper algorithms instead of people. And six sigma improvement projects may be intrinsic parts of the system and may not exist as separate projects any more.

• Journal of Distribution Science
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• v.14 no.8
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• pp.45-50
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• 2016

Purpose - This study aimed to develop a new practical and universally applicable service quality model by improving the service quality measurement model proposed by many previous studies. Research design, data, and methodology - An in-depth analysis on what influences such service quality model had on the improvement effect of service quality, and Service Evaluation Model("SEM"), which was revised from the existing service quality measurement model, was developed. The model is divided into the two integrative categories: First, activity, that is the group of service-related activities. Next is item, the group of service-related objects. The level of service is evaluated for each category via survey questionnaire on service level evaluation. Based on the model, SEM has visibility by structuring the whole service industry. Results - For the application of the new service quality model, this study attempted to examine the appropriateness of the newly proposed service quality model by applying it to retail service field. Conclusions - As a result, the proposed service model would be a useful and applicable service quality measurement model required by many organizations. Service company can set up self check service levels. Through these results, they can look for the ways to provide better services to customers. Service users can ensure the objectivity of business plan based upon SEM.

• Journal of Korean Academy of Nursing Administration
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• v.13 no.1
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• pp.109-117
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• 2007

Purpose: This study focused on analysing the performance and the perception of importance about workload of ambulatory nurses and nurse-aides for quality of nursing. Method: The subjects of this study were 126 ambulatory nurses and 117 nurse-aides in 6 secondary and 4 tertiary hospitals. The method of data collection was used the questionnaire. Result: As a result, First, nurses' activities that the performance score is above 3.0 are reception, guidance, reservation, confirm, checking medical record, operating report, explanation of disease, explanation of examination discuss with medical part, discuss with supporting part, solving patient problem environment management, and paper work. And the other side, those of nurse-aides are reception, guidance, reservation, preparation for clinic, assistant for clinic, preparation for examination, material transfer & receipt, confirm, checking medical record, and arrangement. Second, nurses-aids perceive above 3.0 performance score activities to be important for themselves. Finally, nurses perceive three categories of patient education/counselling, patient advocacy and quality improvement to be more important and higher performance when compared with nurse-aides. Conclusions: Ambulatory nurse's important nursing activities are therapeutic care, patient education/counselling, patient advocacy, communication, personal management, quality improvement.

• Quality Improvement in Health Care
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• v.8 no.1
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• pp.22-42
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• 2001

Background : A study comparing unit dose drug distribution system(UDS) versus traditional drug distribution system(TDS) was conducted in Seoul National University Hospital. The objectives of this study were to identify safer drug distribution system and to measure the efficiency of both systems in utilizing nursing and pharmacist's time. Methods : The study was designed to compare the data on medication errors, nursing time and pharmacists' time before and after implementation of the UDS in the internal medicine and otorhinolaryngology care units. The data on actual medications administered to patients were obtained by a disguised observer during the study period. The data collected were then compared with the physicians' orders to determine the rate of medication errors. In addition, using ten-minute interval work-sampling method nursing and pharmacists' time were measured. Results : About 6% of medications were administered incorrectly in the TDS, in comparison to 1.6% in the UDS. The rate of medication error decreased significantly in the UDS compared with the TDS. Mean times spent on medication-related activities by nurses were 34.1% in the TDS and 28.5% in the UDS. In the internal medicine care unit, nursing time associated with medications decreased significantly after the implementation of the UDS, but the reduction in medication-related nursing time in the otorhinolaryngology care unit was not significant. Pharmacist's medication-related work activities, increased from 2% in the TDS to 20% in the UDS. Pharmacist's time spent on therapy-related activities increased significantly. Conclusion : The rate of medication errors in the UDS decreased significantly compared with the TDS. Time spent on medication-related activities decreased for nurses while it increased for pharmacists. In summary, the UDS was estimated to be safer and to utilize of pharmacists' and nursing time more efficiently than the TDS.

• Proceedings of the Safety Management and Science Conference
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• 2010.11a
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• pp.539-550
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• 2010

The study presents the application strategy and understanding of regression analysis with GLM(Generalized Linear Model) unifying with other statistical techniques such as correlation analysis and design of experiment(DOE). The quidelines proposed in this paper can be used for practioners to implement GLM and ANOVA(Analysis of Variance) for the DMAIC 5 steps of six sigma breakthrough.

• Journal of Aerospace System Engineering
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• v.2 no.3
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• pp.7-11
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• 2008

This is a study to research the effective way to enhance the performance of safety management by gathering and analyzing the information of undesirable occurrences that may result in accident or serious incident. This includes the way to identify the potential hazards related with the proactive activities. As detailed improvements, this paper introduces the mandatory and voluntary reporting system, normal operation safety survey, ATC quality assurance and the encouragement of just culture.

• Journal of Korean Society of Industrial and Systems Engineering
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• v.23 no.60
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• pp.57-65
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• 2000

This paper suggests the direction of documentation that enables the certified organizations to transform smoothly into newly revised ISO 9001:2000 Quality Management System. Documentation and control of records are major concerns not only to certified organizations but also to consultants and auditors of certification bodies. The revised standards ISO 9001:2000 requires a significantly reduced emphasis on the needs for documented procedures than the ISO 9001:1994 version of the standard. This paper describes documented procedures and records be kept as a minimum needed by organizations in accordance with the requirements of control of documents and records. This enables each individual organization to establish Quality Management System effectively and perform continual improvement activities.