• Journal of Information Technology Applications and Management
• /
• 제14권3호
• /
• pp.1-14
• /
• 2007

Recently. interests in IT Service Management (ITSM) are increasing internationally as well as domestically. In order to realize the benefits from ITSM, it is necessary to institutionalize it as a culture of the organization through effective change management. One of the most promising approach of effective change management is a Six Sigma technique. In this study, we analyze a success case in which 6 Sigma was applied to Service Desk function which is one of the most important functions of ITSM. Through the analyses, this study aims to propose a feasible and specific approach to institutionalize ITSM. To accomplish the objective. the study analyzed specific methods of application of 6 Sigma to ITSM. performance of the project and future directions based on interview and project document/deliverable review. This study could not provide detailed performance measures due to lack of previous research on this topic and difficulty of obtaining quantitative data. However. this study has contributed to proposing a direction to institutionalize ITSM in organizations by analyzing a feasibility of 6 Sigma in implementing ITSM.

• 대한영양사협회학술지
• /
• 제13권4호
• /
• pp.331-344
• /
• 2007

This study was performed to improve the hospital food service in quality and customer satisfaction by using 6-sigma strategy which was processed by DMAIC methods. The research procedure was as follows; analyzing the main causes of customer dissatisfaction of food service by using numerical method, and then finding out the standardized problem solving methods, and finally reforming food service process. The effectiveness of 6-sigma activity was measured by ‘food service quality index’, ‘customer satisfaction index’ and ‘total food service satisfaction index’. Food service quality index was calculated by adding grade of soup temperature, food service, delivery time, and setting accuracy. Statistical data analyses were completed by using the Minitab Ver. 14. By performing 6 sigma activity, food service quality index was increased from 67 to 79 points (p<0.05) and customer satisfaction index also rise from 73 to 79points (p<0.05). Satisfaction of meals’ taste, diverse menu, food setting accuracy, remove of food service, overall food service were significantly improved(p<0.05). The results of capability analysis in food service quality index, customer satisfaction index, and total food service satisfaction index were improved 2.11$\sigma$ to 2.49$\sigma$, 1.88$\sigma$ to 2.43$\sigma$, and 2.04$\sigma$ to 2.47$\sigma$ respectively (p<0.05). Therefore this study showed that subjective food service improving process could be measured by objective numerical value which might be used for financial value in hospital management.

• 대한수학회보
• /
• 제52권6호
• /
• pp.1797-1803
• /
• 2015

Let ($S_{\alpha}(n))_{n{\geq}1}$ be the lexicographically greatest Sturmian word of slope ${\alpha}$ > 0. For a fixed ${\sigma}$ > 1, we consider Dirichlet series of the form ${\nu}_{\sigma}({\alpha})$ := ${\Sigma}_{n=1}^{\infty}s_{\alpha}(n)n^{-{\sigma}}$. This paper studies the singular properties of the real function ${\nu}_{\sigma}$, and the Lebesgue-Stieltjes measure whose distribution is given by ${\nu}_{\sigma}$.

• 한국식생활문화학회지
• /
• 제24권5호
• /
• pp.506-517
• /
• 2009

This study was conducted to investigate the effects of 6 Sigma on menu management, work commitment and quality in the culinary division of hotels and family restaurants. In addition, this study sought to identify the effects of menu management, work commitment and quality performance on customer satisfaction. Furthermore the relationship between menu management and culinary quality was evaluated here. The subjects evaluated in this study were employees of culinary division of hotels and family restaurants that implemented or were about to adopt the 6 Sigma program. A total of 385 questionnaires were analyzed using factor analysis, a reliability test, and covariance structural analysis. The results revealed that the 6 Sigma program influenced menu management, work commitment and culinary quality. Moreover, menu management, work commitment and culinary quality performance were found to impact customer satisfaction and culinary quality performance. Based on these findings, culinary divisions of hotels and family restaurants should incorporate the 6 Sigma program as soon as possible. To implement this program, faultless data for the 6 Sigma program should be collected using sufficient preparation procedures. After the data were collected, a task force team should be developed, experts should be cultivated and employees should be trained as necessary. Finally, the current level of product and services should be measured and reported to all employees in the culinary division and a challenge spirit should be brought with understanding for the reason for implementation of the 6 Sigma program. In implementing the 6 Sigma program, the leadership of the top manager and the head of the culinary division is very important.

• 한국콘텐츠학회논문지
• /
• 제8권8호
• /
• pp.261-273
• /
• 2008

본 연구는 역동성, 우호성, 및 복잡성을 포함하는 외식환경이 고객지향성, ‘지속적인 개선’, 및 팀웍으로 구성되는 호텔기업 조리부서의 6시그마 품질경영활동에 미치는 영향과, 이 6시그마 품질경영활동이 호텔기업 조리부서 종사원의 업무몰입에 미치는 영향을 연구하였다. 분석 결과, 첫째, 외식환경의 역동성, 우호성, 및 복잡성은 조리부서의 고객지향성, ‘지속적인 개선’, 및 팀웍의 6시그마 품질경영활동에 영향을 미쳤고, 둘째, 이 6시그마 품질경영활동 중 ‘지속적인 개선’과 팀웍은 호텔기업 조리부서 종사원의 업무몰입에 영향을 미쳤다. 이상과 같은 실증분석의 결과를 종합해 볼 때 6시그마는 호텔기업의 조리부서에 도입될 필요성이 있으며, 조리부서의 종사원의 업무몰입에 도움이 되는 것으로 판단된다. 따라서 조리 상품의 특성을 고려하여 사전에 충분한 준비과정을 거쳐서 6시그마기법을 조리부서 경영에 도입한다면 프로세스 개선, 결함제거, 종사원의 업무몰입이 실현되어 경영성과를 높이는 계기가 될 것이다.

• Journal of Microbiology
• /
• 제42권2호
• /
• pp.103-110
• /
• 2004

In order to understand the molecular basis of selective expression of stationary-phase genes by RNA polymerase containing$\sigma$$\^$38/ (E$\sigma$$\^$38/) in Escherichia coli, we examined transcription from the stationary-phase promoters, katEP, bo1AP, hdeABP, csgBAP, and mcbP, in vivo and in vitro. Although these pro-moters are preferentially recognized in vivo by E$\sigma$$\^$38/, they are transcribed in vitro by both E$\sigma$$\^$38/ and E$\sigma$$\^$70/ containing the major exponential $\sigma$, $\sigma$$\^$70/. In the presence of high concentrations of glutamate salts, how-ever, oldy E$\sigma$$\^$38/ was able to efficiently transcribe from these promoters, which supports the concept that the promoter selectivity of $\sigma$$\^$38/-containing RNA polymerase is observed only under specific reaction con-ditions. The examination of 6S RNA, which is encoded by the ssr1 gene in vivo, showed that it reduced E$\sigma$$\^$70/ activity during the stationary phase, but this reduction of activity did not result in the elevation of E$\sigma$$\^$38/ activity. Thus, the preferential expression of stationary-phase genes by E$\sigma$$\^$38/ is unlikely the con-sequence of selective inhibition of E$\sigma$$\^$70/ by 6S RNA.

• 한국기술혁신학회:학술대회논문집
• /
• 한국기술혁신학회 2000년도 춘계학술대회
• /
• pp.260-277
• /
• 2000

최근 미국의 모토롤라(주)에서 시작된 6 시그마(Six Sigma) 경영이 우리나라의 기업들에게 큰 관심의 대상이 되고 있다. 이 논문은 6 시그마 중에서 설계 및 개발분야에 사용되는 6$\sigma$ 설계(Design for Six Sigma: DFSS)에 관하여 고찰하여 보는 논문이다. 6 시그마에 관한 많은 이론이 나와 있으나 아직 DFSS에 관해서는 매우 미약한 편이다. 이 논문에서는 먼저 DFSS의 정의, DFSS 프로세스의 단계, DFSS의 로드맵 등을 먼저 다루고, 다음으로 DFSS에서 사용되는 각종의 과학적 관리기법들(품질기능전개, Scorecard, FMEA, TRIZ, 다구찌설계 등)에 대하여 간단히 기술하기로 한다. 마지막으로 DFSS의 실무적용방법을 제안한다.

• 품질경영학회지
• /
• 제50권3호
• /
• pp.373-386
• /
• 2022

Purpose: This study proposes the application of Six Sigma management innovation method for more systematically enhanced execution of Quality by Design (QbD) activities. QbD requires a deeper understanding of the product and process at the design and development stage of the drug, and it is very important to ensure that no fault is fundamentally generated through thorough process control. Methods: Analyzing the background and specific procedures of quality improvement based on the drug design basis, and analyzing the key contents of each step, we have differentated and common points from the 6 Sigma methodology. We propose a new model of Six Sigma management innovation method suitable for pharmaceutical industry. Results: Regulatory agencies are demanding results from statistical analysis as a scientific basis in developing medicines to treat human life through quality improvement activities based on drug design. By utilizing the education system to improve the statistical analysis capacity in the Six Sigma activities and operating the 6 Sigma Belt system in conjunction, it helped systematically strengthen the execution power of quality improvement activities based on pharmaceutical design based on the members of the pharmaceutical industry. Conclusion: By using QbD Six Sigma, which combines quality enhancement based on pharmaceutical design basis and Six Sigma methodology suitable for pharmaceutical industry, it is possible to obtain satisfactory results both by pharmaceutical companies and regulators by using appropriate statistical analysis methods for preparing scientific evidence data required by regulatory.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2006년도 정기학술발표대회 논문집
• /
• pp.478-482
• /
• 2006

국내 기업들은 치열한 국제경쟁력에서 시장의 선도적 위치를 확보하기 위하여 가격 및 품질 우위 전략을 꾸준히 추진하고 있다. 건설산업에서도 건설시장 개방에 따른 해외기업들과의 경쟁 상황에 놓이게 되면서 기업의 경영전략, 방향 및 핵심결정요소들에 대한 연구에 여념이 없으며, 따라서 무엇보다도 기업의 경쟁력 강화가 중요한 우선순위에 오르게 된다. 이러한 기업의 경쟁력 강화를 위하여 많은 기업으로부터 큰 관심을 유도하고 있는 기법이 6시그마(Sigma) 기법이다. 6 시그마 기법의 선행 연구들은 제조업과 서비스업을 대상으로 수행된 것이 대부분이다. 건설업과 관련한 연구는 6시그마의 도입 및 고찰 단계에 머물러 있으며, 실제 도입은 "S건설" 1개사만 도입하여 적용하고 있기 때문에 그 적용 성과에 대하여는 한계를 가질 수밖에 없다. 그렇지만 상기에 언급한 것처럼 시장 환경의 급격한 변화에 따른 국제 경쟁력 확보를 위하여 6시그마 도입은 필수적이라 판단하고, 이에 대한 논리적 타당성의 전개 및 이를 검증하기 위한 설문조사를 통하여 건설깅버의 6시그마 적용 가능성을 확인함으로서 6시그마 도입 적용의 한계성을 극복하는 것이 본 연구의 목적이라고 할 것이다.

• 한국건설관리학회:학술대회논문집
• /
• 한국건설관리학회 2002년도 학술대회지
• /
• pp.311-315
• /
• 2002

최근 새로이 대두되고 있는 신 경영혁신 전략인 6시그마 경영은 이미 제조업이나 서비스업 등에서 큰 성과를 보이고 있으며 세계적으로 경영혁신 전략의 표본으로 널리 확산되고 있다. 하지만, 건설산업의 경우 이러한 경영기법을 적용한 사례가 많지 않으며 이미 적용되었던 경영기법조차 그 성과가 미미한 실정이다. 이에 본 연구에서는 6시그마에 대한 이론적인 고찰과 아울러 그 적용요건을 살펴보고 신 품질관리기법으로 건설산업에 접목되었을 때의 문제점을 파악하여 구체적이며 실제적인 6시그마 적용절차 및 방법론을 제시하고자 한다. 본 연구 결과는 건설산업의 6시그마 경영의 도입에 기초적인 연구로서 활용될 것이다.