• KSII Transactions on Internet and Information Systems (TIIS)
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• 제11권1호
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• pp.18-38
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• 2017

Infrastructure-as-a-Service (IaaS) clouds provide infrastructure as a pool of virtual resources, and the public IaaS clouds, e.g. Amazon Web Service (AWS) and private IaaS cloud toolkits, e.g. OpenStack, CloudStack, etc. provide their own application programming interfaces (APIs) for managing the cloud resources they offer. The heterogeneity of the APIs, however, makes it difficult to access and use the multiple cloud services concurrently and collectively. In this paper, we explore previous efforts to solve this problem and present our own implementation of an integrated cloud API, which can make it possible to access and use multiple clouds collectively in a uniform way. The implemented API provides a RESTful access and hides underlying cloud infrastructures from users or applications. We show the implementation details of the integrated API and performance evaluation of it comparing the proprietary APIs based on our cloud testbed. From the evaluation results, we could conclude that the overhead imposed by our interface is negligibly small and can be successfully used for multi-cloud access.

• Child Health Nursing Research
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• 제24권4호
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• pp.443-453
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• 2018

Purpose: This study was describes the development and implementation a sex education program with a blended learning method for university students. Methods: Sixty-eight university students were recruited either to the experimental group (n=35) or the control group (n=33). This program was developed based on the analysis, design, development, implementation, and evaluation model. The analysis phase consisted of a literature review, focus group interview, expert consultations, and target group survey. In addition, learning objectives and structure were designed, and a printed text-book, presentation slides, cross-word puzzle, and debate topics were developed. In the implementation phase, the program was conducted 3 times over the course of 3 weeks. The evaluation phase involved verification of the effects of the program on sex-related knowledge, sexual autonomy, and justification of violence, as well as an assessment of satisfaction with the program. Results: The experimental group had significantly higher scores on sex-related knowledge (t=5.47, p<.001), sexual autonomy (t=2.40, p=.019), and justification of violence (t=2.52, p=.015) than the control group. Conclusion: The results indicate that this sex education program with blended learning was effective in meeting the needs of university students and can be widely used in this context.

• Educational Technology International
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• 제17권1호
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• pp.1-37
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• 2016

The purpose of this study was to develop a MOOC design model that would improve the current practice of MOOC development in Korea by specifying easy-to-use course development procedures and guiding strategies. Following Richey and Klein (2007)'s conceptual model development procedure, the first step was to perform critical review of relevant literature and observe typical MOOC development processes. As a result, the initial model was developed. The second step was to conduct the expert review with five educational technology and MOOC researchers to secure the internal validity of the model. Based on the experts' suggestions, the model was revised and once again reviewed by the same experts. This process resulted in the development of the 2^nd version of model. The third step was to carry out external validation research in order to test the effectiveness, efficiency, and usability of the model. A basic model may be confirmed or corrected based on examination of its results. Consequently, the model was elaborated as the final model. In the final model, 6 procedural phases and 9 specific steps were included. The six procedural phases are: Analysis (1st Iteration), Design, Development (Course Development), Implementation, Evaluation, and Analysis (2nd Iteration), a slight variation of ADDIE model. The specific steps include: 1) Goal Setting, 2) Environment Analysis, 3) Content Design, 4) Style Design, 5) Course Development, 6) Implementation Plan, 7) Course Implementation, 8) Summative Evaluation, and 9) Need Reflection. The study concluded with suggestions for further research and application of the MOOC design model.

• 인터넷정보학회논문지
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• 제25권1호
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• pp.167-176
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• 2024

챗봇서비스는 AI서비스와 연계하여 다양한 분야에서 활용되고 있다. AI에 대한 보안 연구는 초기 단계이고, 이를 이용한 서비스 구현단계에서의 실질적인 보안 연구는 더욱 부족한 상황이다. 본 논문은 AI서비스와 연계된 챗봇서비스에 대한 보안요구사항을 분석한다. 먼저, 본 논문에서는 최근 발표된 AI보안에 대한 논문과 자료들을 분석한다. 시장에서 서비스가 제공되는 있는 챗봇서비스를 조사하여 일반적인 구현 모델을 정립한다. 구현 모델에는 챗봇관리시스템과 AI엔진이 포함된 5개의 구성요소가 포함되어 있다. 정립된 모델에 기반하여 쳇봇서비스에 특화된 보호자산과 위협을 정리한다. 위협은 실제 운영중인 챗봇서비스 담당자 설문을 통해 챗봇서비스에 특화된 위협을 중심으로 정리한다. 10개의 주요 위협이 도출되었다. 정리된 위협에 대응하기 위해 필요한 보안 영역을 도출하였고, 영역별로 필요한 보안요구사항을 분석하였다. 이는 챗봇서비스 보안 수준을 검토하고 개선하는 과정에서 보안평가 기준으로 활용될 것이다.

• KIEAE Journal
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• 제12권2호
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• pp.59-64
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• 2012

In the United States, the implementation of the LEED green building rating system has dramatically changed the construction industry to motivate construction participants to employ green building approaches into projects. The objectives of green building rating systems are to achieve the triple bottom line benefits including economic, social and environmental benefits that are able to not only provide an excellent amenity to building users, but also to reduce environmental problems associated with buildings and accomplish financial benefits. Since the implementation of green building features has many benefits, the purpose of this study is to identify occupants' satisfaction of green building and the transformation of occupants'' attitude toward sustainability by conduct an in-depth case study of the cutting-edge green building project located in Atlanta, GA, USA. Based on this case study, it is possible to suggest construction participants in Korea to identify how green building can improve occupants'' satisfaction of the building and change their attitude toward sustainability.

• 청정기술
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• 제9권3호
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• pp.145-151
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• 2003

청정생산방법론을 적용하여 염료생산공정의 청정화를 꾀하고자 하였다. 본 고에서는 반응중에 사용되는 공정수와 유기용매인 DMF의 회수방안을 모색하고, 고급산성염료 제조공정 보완을 통한 제품질 향상 방안을 마련하고자 하였다. 청정생산방법론의 적용순서는 기업경영진의 결정, 대안도출, 대안평가 및 우선순위 결정, 실행, 모니터링 및 지속적 실행단계의 절차를 따라 수행하였으며, 이의 수행결과 DMF의 회수와 함께 용수사용량을 25% 이상 절감할 수 있었으며, 고급산성염료의 경우 2배 이상의 용해도 향상을 통하여 제품의 가치를 상승시킬 수 있었다.

• 보건교육건강증진학회지
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• 제32권1호
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• pp.77-87
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• 2015

Objectives: This study aims to explain the process of photovoice, to review relevant research cases, and to discuss the issues in photovoice applications for community health promotion. Methods: Literature review is performed on photovoice manuals, systematic review literature on international photovoice research, and Korean photovoice studies. The review was based on 8 research papers and 6 practice manuals. Results: Photovoice so far has specified its orientation to participatory research. Its implementation includes photovoice training, photo taking and sharing, interviews and discussions, photo exhibit, and social action planning for policy change. SHOWeD questions and the like guide photovoice discussions while they face some challenges in application. Social action planning for policy change part of the photovoice needs attention in implementation and evaluation. Conclusions: Adherence to the participatory principles and action research orientation in photovoice requires persistent efforts. Process and impact evaluation with development of photovoice research infrastructure will enhance photovoice application.

• 한국의료질향상학회지
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• 제21권2호
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• pp.12-24
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• 2015

Purpose: The need for the rapid evaluation and treatment of emergency department patients with major trauma is essential. A computerized physician order entry (CPOE) system can improve communication and provide immediate access to information with the goal of reducing ED time delays. The aim of this study was to report on the operation of a trauma CPOE program and demonstrate its usefulness by comparing time intervals from ED arrival to various evaluation steps before and after implementation of the program. Methods: This was a before-and-after observational study from a single emergency department at an academic center. The CPOE program was implemented for 6 months and compared with the data collected from the pre-CPOE implementation period. The efficacy of the program was assessed by comparing the time difference before and after CPOE implementation based on the following factors: total boarding time in ED, door-to-disposition decision time, door-to-blood-test report time, door-to-X-ray time, door-to-CT time, and door-to-transfusion time. Results: Over a period of 6 months, the CPOE was activated for a total of 17 patients. Total boarding time was reduced significantly after implementation [median, 641.5 minutes (IQR, 367.3-859.3) versus289.0 minutes (IQR, 140.0-508.0) for pre-CPOE vs. post-CPOE, respectively, p< 0.05). Time intervals for all evaluation steps were reduced after implementation of the program. The improvements in the door-to-blood-test and door-to-CT times were both statistically significant. Conclusion: This study demonstrated that a standard CPOE system can be successfully implemented and can reduce ED time delays in managing trauma patients.

• Asian Pacific Journal of Cancer Prevention
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• 제14권2호
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• pp.1159-1163
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• 2013

International meetings on various aspects of cancer- its etiology, its diagnosis, its treatment, its palliation, and its prevention and control are held frequently. Many have similar themes, and many seek and receive the same speakers and audiences. A fundamental question arises: what difference does any individual meeting/congress/conference make or add to our understanding of the relevant issues? While many meetings conduct evaluations at the end of the Congress, few use evaluation as a tool to guide design, implementation, and evaluation of both short and long term impacts, and address the question of "what difference did the Congress make". The International Cancer Control Congresses, which are held biennially in different regions of the world, took the opportunity to use evaluation in this way, and ask the relevant questions. This paper describes that evaluation session of the ICCC4, held in Seoul, Korea in November 2011, which was part of the larger evaluation issue.

• 한국경영과학회:학술대회논문집
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• 한국경영과학회 2004년도 추계학술대회 및 정기총회
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• pp.463-466
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• 2004

This paper suggests the evaluation method of success factors of CRM implementation using AHP technique, and presents why firms implement CRM, how it could be successfully implemented, and what is the most important factor. For the purpose, this study applies the method to department stores' industry. AHP structure consists of three steps to determine CRM's key success factors. First of all, strengthening loyalty of customers, improvement of service quality, upgrade of intelligence system and advancement of management process are selected as superordinate object (i.e. CRM-implementation goal). The next project factor, technology/data factor and organizational factor were decided as success factor of CRM-implementation. Subordinate criteria of project factor consist of 11 criteria. The experimental results of this study show that department stores think advancement of management process and improvement of service quality as most important purposes for CRM implementation. The results also indicate that among the subordinate success factors, accuracy of customer information, conversion to customer-oriented business model, practical use of experienced consultant, and establishing IT infrastructure for CRM are evaluated as most important success factors for CRM implementation.