• 인터넷정보학회논문지
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• 제18권1호
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• pp.37-41
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• 2017

본 논문에서는 PPL(Product Placement)을 변경할 수 있는 위치기반 실시간 비디오 클립을 스트리밍하는 스마트 플랫폼을 제안한다. 제안하는 플랫폼은 LTE 위치인식 기반의 GPS 좌표 값과 비콘 기술을 활용하여 Active Push형태로 사용자에게 촬영지의 드라마 영상을 제공한다. 또한 비디오 클립 내의 PPL 객체에 대한 사진, 동영상, 음악, URI(Uniform Resource Identifier) 형태의 DB를 구성하였다. 제안한 플랫폼에서는 비디오 클립 스트리밍 서비스 상황에서 PPL 객체 DB에 대한 인터액티브 태그 동기화를 통해 PPL 객체의 색깔과 모양을 변경할 수 있도록 하였다. 제안하는 플랫폼에서는 서비스 제공자의 요구에 따라 PPL 변경이 가능한 위치 기반 실시간 비디오 스트리밍을 가능하게 한다.

• 스마트미디어저널
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• 제6권1호
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• pp.39-46
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• 2017

The internet has become an important part of the many aspects of people's daily lives such as work, study, entertainment and in form of electronic commerce, shopping. Electronic commerce is growing rapidly in Kenya. There are many successful business-to-business, business-to-customer and customer-to-customer online shopping companies in Kenya. As a consequence, competition between vendors is intense and, therefore, mitigating the negative effects of high product uncertainty is necessary requirement as it remains a biggest hindrance for success of the online shopping. The purpose of this research is to investigate how online product description, third party product assurance, customer service and website design mitigate the negative impact of high product uncertainty. A questionnaire with 28 items is designed to collect data from online customers. Using multiple regression analysis, the relationship between dependent variable (product uncertainty) and independent variables such as product description, third party assurance, website design and customer service is tested. The result shows that all the independent variables are negatively correlated with dependent variable, which means that product description, third party assurance, website design and customer service can be used by online vendors to lessen the problem of product uncertainty in online markets.

• 한국IT서비스학회지
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• 제21권5호
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• pp.65-79
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• 2022

The smart factory has spread to small and mid-size enterprises (SMEs) under the leadership of the government. Smart factory consists of a work area, an operation management area, and an industrial control system (ICS) area. However, each site is combined with the IT system for reasons such as the convenience of work. As a result, various breaches could occur due to the weakness of the IT system. This study seeks to discover the items and vulnerabilities that SMEs who have difficulties in information security due to technology limitations, human resources, and budget should first diagnose and check. First, to compare the existing domestic and foreign smart factory vulnerability classification systems and improve the current classification system, the latest smart factory vulnerability information is collected from NVD, CISA, and OWASP. Then, significant keywords are extracted from pre-processing, co-occurrence network analysis is performed, and the relationship between each keyword and vulnerability is discovered. Finally, the improvement points of the classification system are derived by mapping it to the existing classification system. Therefore, configuration and maintenance, communication and network, and software development were the items to be diagnosed and checked first, and vulnerabilities were denial of service (DoS), lack of integrity checking for communications, inadequate authentication, privileges, and access control in software in descending order of importance.

• 한국정보통신학회:학술대회논문집
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• 한국정보통신학회 2017년도 추계학술대회
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• pp.346-348
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• 2017

기술 발전 속도가 증가되고, 고성능의 디지털 기기가 확산되고 있다. 기존 유선 환경에 최적화 되어 제한적으로 활용되던 PC와 같은 유선 디지털 기기에서 시 공간의 제약에서 벗어나, 언제 어디서나 효율적인 업무 수행이 가능한 스마트워크로 전환되고 있다. 유선환경에 비해 단말기 분실, 도난 및 파손 등 물리적 위협과 도난, 서비스 거부, 비인가 접근 등 기술적 위협 등 다양한 보안 위협에 대해 무결성과 가용성을 확보할 수 있는 시스템 보안설계가 필요하다. 본 논문 연구에서는 스마트워크의 네트워크시스템, 유 무선 링크시스템, 디지털 스마트기기를 분석한다. 현재 업무에 사용되고 있는 스마트워크 유선시스템과 향후 무선시스템을 위한 보안설계 방안을 연구한다. 본 연구는 안전한 스마트워크 구축에 기초자료로 활용될 것이다.

• 서비스연구
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• 제2권2호
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• pp.91-98
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• 2012

새로운 유형의 임베디드 컴퓨팅 디바이스와 무선 랜의 발달으로 인하여 컴퓨팅의 영역이 직장, 가정부터 일반 생활까지 넓어지고 있다. 이런 트렌드는 사물 인터넷(Internet of Things, IoT) 환경의 발달을 가져오고 있다. 사물 인터넷 환경에서는 비싸지 않고 서로 연결되는 컴퓨팅 디바이스가 사용자의 다양한 작업을 자율적으로 지원한다. 이런 스마트 서비스를 개발하기 위해서는 컨텍스트 인지 컴퓨팅이 핵심 기술이다. 그러나 이런 서비스를 스마트하게 하기 위해서는 다양한 어려움이 있다. 대표적인 어려움으로는 다양한 컴퓨팅 환경, IoT 장비의 자원 제약사항, 다량의 IoT 장비로부터 생산되는 데이터, 컨텍스트 해석에 있어서의 다른 요구 사항 등이 있다. 이로 인하여 IoT 장비를 활용하여 스마트 서비스를 제공하는데에 어려움이 있다. 이런 상황을 해결하기 위하여 본 논문에서는 재사용 가능한 프레임워크를 제안한다.

• 한국전자통신학회논문지
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• 제10권12호
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• pp.1381-1388
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• 2015

스마트워크는 정보통신기술을 활용하여 다양한 장소와 이동환경에서도 언제 어디서나 편리하게, 효율적으로 업무에 종사할 수 있도록 하는 미래지향적인 업무 환경이다. 본 연구에서는 다가구주택을 관리하는 소규모의 영세 주택관리업체들이 세입자와 임대사업자에게 양질의 주택관리업무 제공할 수 있도록 스마트 모바일 기기와 SNS를 연동하여 실시간 업무 처리가 가능하도록 하여 효율적 주택관리를 지원하는 주택관리 업무지원 스마트워크 플랫폼을 제시하였다. 본 논문에서는 주택관리 업무지원 스마트워크 플랫폼의 한부분인 SNS 연동 실시간 민원 처리 서비스 부분을 기술한다.

• 한국정보시스템학회지:정보시스템연구
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• 제31권3호
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• pp.109-129
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• 2022

Purpose The purpose of this study is to examine whether customers' shadow work and risk perception have an impact on revisit intention to the fast-food restaurant, with mediating role of different types of attribution tendencies. We also added perceived unfairness in the research model, in order to verify its mediating effect on the relationship between attribution tendencies and revisit intention. Design/methodology/approach Applying the shadow work perspective and attribution theory, we designed a research model to confirm the hypotheses. After collecting the data from 331 customers who have used self-service technology in a fast-food restaurant, we conducted an analysis of measurement model and structural model by using Smart-PLS 3.0. Findings This study confirmed that Forced Use of self-service technology can enhance the tendency of dispositional attribution which would negatively affect perceived unfairness and revisit intention. On the other hand, affective risk perception was proven to affect situational attribution, which positively affects revisit intention.

• International Journal of Internet, Broadcasting and Communication
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• 제8권1호
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• pp.7-18
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• 2016

Several authentication methods have been developed to make use of tokens in the mobile networks and smart payment systems. Token used in smart payment system is genearated in place of Primary Account Number. The use of token in each payment transaction is advantageous because the token authentication prevents enemy from intercepting credit card number over the network. Existing token authentication methods work together with the cryptogram, which is computed using the shared key that is provisioned by the token service provider. Long lifetime and repeated use of shared key cause potential brawback related to its vulnerability against the brute-force attack. This paper proposes a per-transaction shared key mechanism, where the per-transaction key is agreed between the mobile device and token service provider for each smart payment transaction. From server viewpoint, per-transaction key list is easy to handle because the per-transaction key has short lifetime below a couple of seconds and the server does not need to maintain the state for the mobile device. We analyze the optimum size of the per-transaction shared key which satisfy the requirements for transaction latency and security strength for secure payment transactions.

• 대한인간공학회지
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• 제31권1호
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• pp.117-124
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• 2012

Objective: The goal of this study is to design a creative tutoring service, which helps children gain confidence and creativity through learning activities. Background: Nowadays most kids are growing up in a very competitive environment under their parents' zeal for education. A stressful environment can deter a child from the confident undertaking of challenges, leading to depression, anxiety, and feelings of inadequacy. Art therapy helps children work through these issues, however the process led by instructors or parents, and kids still feel anxious studying adults' face to read their thought. Method: To help children address challenges, a creative tutoring service application can provide images with certain tasks instead of asking them to fill in blank areas. The tasks asked by the service system are 1) to visualize children's own experience utilizing visually associated images from given images and 2) to create an illustrated story modifying and re-composing given images. Another task is to learn basic math and words with numbers and alphabets in customized colors. By completing each task children collect awards, which allow them graduate to higher levels of challenges. The outcomes from the tasks are sent to the main server system and reviewed by analysts. Those results are sent to children's parents as a text message on smart phone. Results: Visual implication using images inspires children to make creative stories based on their own experience. Also, children can find their own patterns of reaching answers by using synaesthetic imagery through repetitive practices of creative thinking tasks. Conclusion: Understanding how they feel about doing tasks in certain environments and assessing them in varied situations should be carefully considered when designers approach service design for kids. By focusing on how to tutor children in creative ways, as opposed to focusing on the expected outcome, creative service applications can be designed to reduce children's stress and encourage self expression. Children are predicted to gain confidence through using the service without the concern of comparison by others. Application: The creative tutoring service needs to be developed and tested by varying types of children.

• 한국컴퓨터정보학회논문지
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• 제23권10호
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• pp.203-207
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• 2018

The purpose of this study is to investigate how smart tourism is applied to hotels and residences using ICT in Korea. Smart tourism is similar often used as a concept such as u-tourism, e-tourism, and digital tourism but the most similar of ubiquitous. This is reflecting to the fact that the recent trend of tourism has been decreasing from the large scale to the individual but the customers demand has been increasing, so we have examined how the hotel and the residence are adapting this situation. As a results, hotels and residences in Korea are reflecting to improve work process and remodeling of customer service.