• 한국비블리아학회지
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• 제35권2호
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• pp.135-156
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• 2024

새로운 정보환경에 직면한 사서는 지식과 기술에 적극적인 대처가 필요하지만, 위탁 공공도서관 사서는 업무 공백의 우려나 제도적 장치의 미흡으로 외부 교육 참여에 부담을 느끼고 있어 지속적인 교육이 이루어지기 어렵다. 이에 본 연구에서는 사서가 함께 성장할 수 있는 환경을 조성하고자 학습공동체 활동 현황을 점검하고 그 효과를 파악하였다. 강남구립도서관 소속 사서 중 학습공동체 활동에 참여한 경험이 있는 사서를 대상으로 2023년 5월 20일부터 22일까지 온라인 설문조사를 실시하였으며, 101부를 배포하여 81부를 회수하고 분석 데이터로 활용하였다. 연구 결과, 사서들은 학습공동체 활동에 만족하고 있으며, 그 필요성에 대한 이해와 공감이 높은 것을 확인하였다. 따라서 학습공동체를 활성화하기 위한 방안으로 구성원의 협업을 촉진하는 문화를 형성하고, 학습공동체 활동에 대한 비전과 가치를 공유하며, 제도적 지원이 필요함을 제언하였다.

• 한국항공운항학회지
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• 제25권4호
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• pp.31-43
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• 2017

Airport security staff are outsourced workers, whose status is a special security agent under the security service law in Republic of Korea, who are subject to persuing both profitability and public concern at the same time. This paper has chosen the sample of security staff working at Incheon airport. This is because airport security staff is being outsourced, this paper had made an empirical research such areas as the perception of job identity, public service motivation and organizational commitment through job satisfaction. According to statistical research, it was found the perception on job identity by airport security staff had a significant negative effect on both job satisfaction and organizational commitment. The more they have perceived their status as non-permanent status, the less they had job satisfaction and commitment at the same time as a special security agent at airport. Their perception of job identity had a significant effect on such public service motivation factors as 'absorbing public concern' and 'a solicitude'. Lastly, their motivation factors had also significant positive effect on job satisfaction and organizational commitment.

• 한국경영과학회지
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• 제33권1호
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• pp.71-105
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• 2008

Various stakeholders within and outside of the organization are involved and participate in the outsourced IS development. As their interests and goals are different conflict arises in the process of their interaction, and it is an important factor affecting outsourcing success. The study focuses on the conflict between client users and vendor, i.e. main conflict in the outsourcing project, and examines the relationship of conflict with project success, the antecedents of conflict, and investigates the effectiveness of conflict resolution facilitation. An integrated conceptual model is developed grounded on is outsourcing, IS development, project management, and organizational behavior literature. Nine specific hypotheses on the conflict in outsourcing projects are proposed, and data collection and analysis are performed with 214 ISD outsourcing projects. Results indicated that the conflict between client users and vendor in outsourcing projects was found to have negative effects on project success. Main causes affecting conflict were examined, and relative influences of these causes were clarified. Recently internal IT personnel have been faced their role change with the increase of outsourcing, and the importance of their conflict resolution facilitation was highlighted.

• 한국IT서비스학회지
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• 제4권1호
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• pp.149-160
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• 2005

Information system outsourcing induces firms to concentrate on the core competence and to improve business value by utilizing specialized information systems outsourcing vendors. However, for those strategic effects, the outsourced information systems should guarantee a certain service level. Now companies are considering to adopt SLA(Service Level Agreement) as a method to check the service level of the outsourced information systems in quantitative terms. On the contrary, customer satisfaction survey supports qualitative analysis, and helps companies to understand the qualitative effects on information system more systematically. Recently, the growing use of the internet makes customer satisfaction survey to be carried out on the web. For that reason, lots of researches related to web survey have been performed. But these researches are just focused on finding out only items to be measured and the effect of web survey. In this paper, based on the service quality research model for information system outsourcing, we formalize and propose a web survey process, a system architecture, and a functional structure for information system outsourcing customer satisfaction survey. Additionally, we provide the implementation results for the web survey systems.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권7호
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• pp.3699-3719
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• 2017

Conjunctive keyword search encryption is an important technique for protecting sensitive personal health records that are outsourced to cloud servers. It has been extensively employed for cloud storage, which is a convenient storage option that saves bandwidth and economizes computing resources. However, the process of searching outsourced data may facilitate the leakage of sensitive personal information. Thus, an efficient data search approach with high security is critical. The multi-user search function is critical for personal health records (PHRs). To solve these problems, this paper proposes a novel multi-user conjunctive keyword search scheme (mNCKS) without a secure channel against keyword guessing attacks for personal health records, which is referred to as a secure channel-free mNCKS (SCF-mNCKS). The security of this scheme is demonstrated using the Decisional Bilinear Diffie-Hellman (DBDH) and Decision Linear (D-Linear) assumptions in the standard model. Comparisons are performed to demonstrate the security advantages of the SCF-mNCKS scheme and show that it has more functions than other schemes in the case of analogous efficiency.

• 한국도서관정보학회지
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• 제31권3호
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• pp.1-21
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• 2000

본 연구의 목적은 도서관계의 새로운 경영기법으로 주목받고 있는 아웃소싱을 비판적 시각으로 고찰하는데 있다. 도서관계가 아웃소싱의 적실성과 기대효과를 냉정하게 분석하지 않으면 무차별적으로 적용되는 경제논리와 정보문화를 천대하는 행정논리에 대항할 수 없을 뿐만 아니라, 종국에는 위탁관리나 명칭변경에 버금가는 밀레니엄 버그로 둔갑할 수 있다. 이에 정부의 아웃소싱 정책, 공공부문 및 도서관의 도입현황을 개관한다음. 그 본질과 변종, 제반여건, 명분과 기대효과, 대상과 영역, 사서직의 전문성과 정체성에 미치는 영향 등을 논급하였다. 아웃소싱이 불가피할 경우에는 대상업무를 비핵심영역으로 제한해야 하며, 장서개발 및 정보 봉사력의 저하, 사서직의 전문성 및 정체성의 훼손 등을 초래할 개연성이 많은 영역에 대해서는 비판적 입장을 고수해야 할 것이다.

• KSII Transactions on Internet and Information Systems (TIIS)
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• 제12권9호
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• pp.4576-4598
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• 2018

In big data age, flexible and affordable cloud storage service greatly enhances productivity for enterprises and individuals, but spontaneously has their outsourced data susceptible to integrity breaches. Provable Data Possession (PDP) as a critical technology, could enable data owners to efficiently verify cloud data integrity, without downloading entire copy. To address challenging integrity problem on multiple clouds for multiple owners, an identity-based batch PDP scheme was presented in ProvSec 2016, which attempted to eliminate public key certificate management issue and reduce computation overheads in a secure and batch method. In this paper, we firstly demonstrate this scheme is insecure so that any clouds who have outsourced data deleted or modified, could efficiently pass integrity verification, simply by utilizing two arbitrary block-tag pairs of one data owner. Specifically, malicious clouds are able to fabricate integrity proofs by 1) universally forging valid tags and 2) recovering data owners' private keys. Secondly, to enhance the security, we propose an improved scheme to withstand these attacks, and prove its security with CDH assumption under random oracle model. Finally, based on simulations and overheads analysis, our batch scheme demonstrates better efficiency compared to an identity based multi-cloud PDP with single owner effort.

• 한국콘텐츠학회논문지
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• 제10권12호
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• pp.342-351
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• 2010

본 연구의 목적은 아웃소싱을 통한 정보시스템 개발에서 고객사와 벤더 간에 발생하는 갈등의 주요 원인을 규명하는 것이다. 정보시스템 아웃소싱과 시스템 개발, 갈등에 관한 선행연구를 기반으로 연구모형을 설정하였으며, 고객사-벤더 쌍으로 이루어진 프로젝트 팀 단위의 설문 214개를 대상으로 PASW 18.0 통계패키지를 이용하여 실증연구를 수행하였다. 다중회귀분석을 이용한 통계분석결과, 계약의 구체성, 요구사항 불변성, 목표간 일치, 고객사의 지식이 갈등을 감소시키는 것으로 나타났다. 본 연구결과는 아웃소싱 프로젝트의 성과 향상을 위한 다양한 시사점을 제공할 것이다.

• 대한영양사협회학술지
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• 제18권4호
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• pp.372-384
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• 2012

The purpose of this study was to provide a basic resource for establishment of hygienic management standards for meal delivery from the central kitchen to schools. Flow diagrams for delivery of food were analyzed, and time-temperature conditions of the food and environment were measured. Four different foods samples including Mexican salad, radish salad, stir-fried pork and vegetables, and stir-fried chicken and vegetables were collected after production and before service. Microbiological analysis was performed for aerobic plate counts (APC), Enterobacteriaceae, coliforms, E. coli, Salmonella spp., S. aureus, B. cereus, C. perfringens, and L. monocytogenes. After completion of production of cooked foods 2~3 hours were taken for the cooked foods to reach the temperature danger zone. Food temperatures at the meal service did not meet the recommended temperatures ($10/57^{\circ}C$) for conventional school food service systems. The highest APC counts were observed in radish salad (5.70 log CFU/g), followed by Mexican salad (5.18 log CFU/g). Enterobacteriaceae and coliform counts were within acceptable levels of those recommended by the UK Public Health Laboratory Service. No E. coli or pathogens were found. These results provide useful information for determination of microbiological hazards in school food service systems, and suggest that time-temperature control during delivery is necessary for the safety of cooked foods.

• 정보과학회 논문지
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• 제43권12호
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• pp.1437-1457
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• 2016

데이터베이스 아웃소싱 환경에서, 클라우드는 인증된 사용자에게 아웃소싱된 데이터베이스를 기반으로 질의 서비스를 제공한다. 그러나 금융, 의료 정보와 같은 민감한 데이터는 클라우드에 아웃소싱 되기 전에 암호화되어야 한다. 한편, kNN 질의는 다양한 분야에서 폭넓게 사용되는 대표적인 질의 타입이며, kNN 질의 결과는 사용자의 관심사 및 선호도와 밀접하게 연관된다. 따라서 데이터 보호와 질의 보호를 동시에 고려하는 kNN 질의 처리 알고리즘에 대한 연구가 진행되어 왔다. 그러나 기존 연구는 높은 연산 비용이 요구되거나, 탐색한 인덱스의 노드 및 반환된 질의 결과가 드러나기 때문에 데이터 접근 패턴이 노출되는 문제점이 존재한다. 이러한 문제를 해결하기 위해 본 논문에서는 암호화 데이터베이스 상에서의 kNN 질의처리 알고리즘을 제안한다. 제안하는 알고리즘은 데이터 보호 및 질의 보호를 지원한다. 또한, 제안하는 알고리즘은 데이터 접근 패턴을 보호하는 동시에 효율적인 질의처리를 지원한다. 이를 위해, 데이터 접근 패턴 노출 없이 데이터 필터링을 지원하는 암호화 인덱스 탐색 기법을 제안한다. 성능 분석을 통해, 제안하는 알고리즘이 기존 기법에 비해 질의처리 시간 측면에서 우수한 성능을 보임을 검증한다.