• 한국산업정보학회논문지
• /
• 제3권1호
• /
• pp.49-65
• /
• 1998

The trend toward globalization and competitive advantage is increasing the importance of international data communication . The more companies attempt to be globalized and competitive, the more critical the problems of the computer networks are. To improve computer networks in the business world, it is believed that the network shoud be approached from the viewpoint of service quality : we need to understand what network quality means to network users, those who use the network. The purpose of this study is to develop a dimension that captures the aspects of network quality that are important to network users. Many articles show that speed is very important factor in network systems. But the more important thing is that speed is just one of the factors contributing to network quality. It is suggested that a quality network meet nine dimensions : (1) speed (2) accessibility (3) connectivity (4) security (5) compatibility, (6) government restrictions (7) complexity (8) sustainability and (9) sharability.

• 한국실내디자인학회논문집
• /
• 제25권6호
• /
• pp.3-14
• /
• 2016

According to Plato's ontology, we lead our lives by establishing a relationship with others in the society. However in rapidly changing era, our lives was gradually moving towards personal tendency. Even for the relationship with family, not with others. Thus, awareness about owning properties has changed due to the sociocultural factors and increase number of single-person households. So in this study, the considerations for single-person housing were perceived through preceding research, and the elements making spatial boundary of shared housing were drawn to make rational space sharing based on the boundary with others and of the living environment. With overall analysis based on the spatial boundary features of planned shared housing, the plan characteristics according to the spatial boundary of the current shared housing is to be drawn and analyzed. Third, The expressive and structural features of spatial boundary as above appear with mutual flexible connectivity, And the result shows that the modularity was the highest. Among them variable coupling modularity of shows how it is possible to combine efficiently and variously the private and public spaces with regularity of 'space of optimal unit'. This study drew plan characteristics from more detailed space border of shared housing. Therefore, The basic framework of the characteristics spin for the cases that newly emerge later on.

• 한국도서관정보학회지
• /
• 제38권4호
• /
• pp.117-144
• /
• 2007

이 연구는 지식정보사회에서 정보기술의 발전과 인터넷의 확산에 따라서 교육 패러다임 자체를 변환시키고 있는 웹기반 교육이 정보활용능력 교육 분야에서 연구가 활성화되어야 함은 물론, 정보사회의 생존기술로 대두되고 있는 정보활용능력이 대학도서관의 교육영역으로 개발 및 운영되어져야 함에 연구의 필요성을 두었다. 이에 정보기술수용모형 이론의 인지된 유용성, 인지된 용이성, 수용의도, 웹 기반 교육의 연결성, 반응성, 도서관 조직의 직무관련성, 지원, 정보활용능력 교육의 ACRL 기준 영역, 효과성 등을 주요변수로 도출하여 이론적 연구모형을 개발하였다. 이 이론적 연구모형을 바탕으로 실증적 연구를 수행하여 대학도서관의 웹 기반 정보활용능력 교육 수용의 영향 요인을 제시하였다.

• 한국공간정보시스템학회 논문지
• /
• 제9권1호
• /
• pp.15-30
• /
• 2007

본 연구의 목적은 모바일 텔레매틱스 서비스 사용자의 사용 의도에 직접적인 영향을 미치는 요인들을 탐색하여, 요인 간 연관관계를 제시하는 것이다. 대부분의 연구들이 동향 분석이나 요구사항 정립에 편중되었고, 본질적인 영향 요인의 분석에 대한 연구의 미비로 연구수행이 일시적으로 끝나거나 선행연구와의 일관성이 결여되었다. 따라서 본 연구는 사용 의도에 미치는 변수 및 가설을 도출하여, 대표적인 정보기술 수용모델인 Davis의 기술수용모형(Technology Acceptance Model, TAM) 이론을 적용하여 확장된 연구모형을 정립하였다. 연구방법은 현재 이동통신사에서 제공하는 텔레매틱스 서비스 사용자를 대상으로 한 설문조사의 통계적 검증을 통한 실증적 연구를 수행하였다. 분석 결과 정보의 정확성, 이용요금 적합성, 위치성, 즉시연결성이 사용자의 사용 의도에 대하여 정의 관계를 보였으며, 특히 정보의 정확성이 가장 중요한 영향 요인으로 검증되었다. 본 연구는 연구모형을 중심으로 한 모바일 텔레매틱스 서비스 사용 의도에 영향을 미치는 요인들의 연관관계를 검증한 실증적 연구로서, 연구의 확장성 측면에서 의미가 있다. 텔레매틱스 서비스 시장의 진화과정을 고려할 때, 본 연구의 산출물은 향후 신정보기술 서비스의 사용 활성화 방안에 응용하거나 산업 정책적 가이드라인을 제시하는데 실증적인 지표로도 활용이 가능할 것이다.

• 디지털융복합연구
• /
• 제20권5호
• /
• pp.61-68
• /
• 2022

본 연구는 소비자의 주관적 지각이 IoT제품의 품질에 대한 충성도에 미치는 영향을 검증하여 학문적 혁신 방안을 모색하여 산업현장에 최적화된 경영전략을 제시한다. 연구방법은 샤오미 IoT제품을 사용하거나 구매했던 중국 소비자들을 대상으로 온라인 설문 조사를 방법을 사용하였고, 실증분석을 위한 통계처리방법은 소프트웨어 SPSS 26.0을 사용하였다. 연구결과는 IoT제품의 내재적 속성(초연결성, 편리성)은 브랜드 이미지에 정(+) 영향을 보이고 있고, 브랜드 이미지는 고객 충성도에 정(+) 영향을 미친다. 브랜드 이미지는 IoT제품의 내재적 속성인 초연결성과 고객 충성도 관계에서 완전 매개효과를, IoT제품의 내재적 속성인 편리성과 고객 충성도 관계에서 부분 매개 효과를 보였다. IoT제품을 개발한 기업에게 지각된 브랜드 이미지 확보는 충성고객층을 확장하는 측면에서 매우 중요한 전략적 의미가 있다.

• KSII Transactions on Internet and Information Systems (TIIS)
• /
• 제18권3호
• /
• pp.610-632
• /
• 2024

Mobile Learning (M-learning) adoption and success in supporting students' learning engagement mainly depend on many factors. Therefore, this study systematically reviews the literature, synthesizes and analyzes the predictors of M-learning adoption, and uses success for students' learning engagement. Literature from 2016 to 2023 in various databases is covered in this study. Based on the review's findings, the factors that influence students' learning engagement when it comes to M-learning usage and adoption, can be divided into technical, pedagogical, and social factors. More specifically, technical factors include mobile devices availability and quality, connectivity to the internet, and user-friendly interfaces, pedagogical factors include effective instructional design, teaching methods, and assessment strategies, and social factors include motivation of students, social interaction and perceived enjoyment - all these factors have a significant impact on the M-learning adoption and use success. The findings of the review also indicated that M-learning has a key role in enhancing the learning engagement of students through different ways, like increasing their motivation, attention, and participation in their process of learning, paving the way for interaction and building relationships opportunities with peers and instructors, which in turn, can lead to strengthening the learning environment. The implications of these findings extend beyond immediate educational contexts, offering vital insights for future educational technology strategies and policy decisions, particularly in addressing global educational challenges and embracing technological advancements in learning.

• 유통과학연구
• /
• 제12권11호
• /
• pp.85-100
• /
• 2014

Purpose - Recently, the prevalence of high-speed mobile communication technology (4G) and mobile devices (smart phones, tablet PC, etc.) is leading innovative changes across all fields in society as well as business environments. Furthermore, a diversified mobile application service has spread rapidly through mobile devices such as smart phones and tablet PCs. Accordingly, the traditional E-government services paradigm has rapidly changed into mobile intelligence. To identify the influencing factors on the using intention of G4C smart app services, based on previous studies, the variables that influence using G4C smart app services are defined; these are user cognitive factors (perceived usefulness, perceived easiness), user characteristics factors (user innovativeness, self-efficiency, social influence), service quality factors (convenience, interactivity, accessibility), and system quality factors (instant connectivity, safety). Research design, data, and methodology - This is designed not only to collect data with a questionnaire survey (9/22/13~10/23/13) but also to test hypotheses with SEM by SPSS 21.0 and AMOS 21.0 in both Korea and China. All items are used with Likert 5 scales. A total of 643 questionnaires (Korea 318, China 325) are used. Results - The perceived usefulness and perceived easiness in user cognitive factors have positive influence on using intention. The user innovativeness, self-efficiency, and social factors in user characteristics factors have positive influences on using intention. The convenience, interactivity, and accessibility in service quality factors have positive influences on both reliability and using intention. Safety in system quality has positive influence on both reliability and using intention. Reliability has positive influence on using intention. The control variables (Korea and China) affect its control hypothesis. Strategies and implications are suggested to assist the public using the intention of smartphone's e-government services based on the results of the empirical analysis. The mobile application service can be considered a new emergence of the paradigm just like the government's on-line portal websites appeared in the past. Under this prevailing situation of mobile smart devices, to promote the success of e-government mobile APP services, accurate analysis and understanding of users should precede anything, to provide services to grasp and satisfy users' desire properly. Conclusions - This study proposes implications to help E-governmental officers and companies make strategies. First, this is expected to give some information on the understanding and knowledge regarding the process of G4C smart APP service based on the empirical study. Second, this helps to make future policies and ways about E-government G4C smart APP service. Third, it is proved that super speed mobile communication technology and devices including phones will be crucial to change the structure of E-government services in 2-3 years. Fourth, it is necessary to increase the trust and using intention of users. Fifth, considering what type of environment users are placed in, to present proper public information matching their inclination, is important. Finally, various ways of experiencing service to explore potential users and ceaseless public relations are required.

• 한국산학기술학회논문지
• /
• 제22권2호
• /
• pp.475-486
• /
• 2021

본 연구는 서울시 공공자전거 이용환경 만족도에 영향을 미치는 물리적 특성을 파악함으로써 서울시 공공자전거 서비스 개선을 위한 정책방향을 제안하는데 목적이 있다. 이를 위해 서울시 공공자전거를 이용한 경험이 있는 이용자를 대상으로 설문조사를 수행하였으며, 최종적으로 567명의 설문조사 자료를 분석에 활용하였다. 분석방법은 IPA분석과 순서형 로지스틱 분석을 활용하였으며, 주요 연구결과를 요약하면 다음과 같다. 첫째, 서울시 공공자전거 IPA 분석 결과 모든 항목에서 중요도에 비해 만족도가 낮게 나타났다. 특히 자전거 도로설치, 자전거 도로의 연결성 개선, 자전거 도로관리상태 개선, 차도와 자전거 도로 구분, 야간주행 시 안전성 개선, 안전시설물 설치의 경우 중요도는 높은 반면 만족도는 낮은 것으로 나타나 가장 시급하게 개선이 필요한 것으로 나타났다. 둘째, 서울시 공공자전거 이용환경 만족도에 영향을 미치는 요인을 분석한 결과 인지된 근린환경특성 변수를 추가함에 따라 모형의 설명력이 0.062에서 0.437로 크게 증가한 것으로 나타나 인지된 근린환경특성이 서울시 공공자전거 이용환경 만족도를 결정하는 중요한 변수임을 확인하였다. 또한 인지된 근린환경특성 중에서는 접근성, 편의성, 관리성, 경제성 변수가 서울시 공공자전거 이용환경 만족도와 통계적으로 유의미한 상관관계를 갖는 것으로 나타났으며, 경제성, 편의성, 관리성, 접근성 순으로 영향력이 높은 것으로 나타났다.

• IEIE Transactions on Smart Processing and Computing
• /
• 제5권2호
• /
• pp.100-106
• /
• 2016

Spectrum sensing is an integral part of cognitive radio, which seeks to address the perceived spectrum scarcity that is caused by inefficient utilization of the available spectrum. In this paper, a spectrum sensing system using energy detection for analog TV and FM broadcast transmitters as well as modified Integrated Services Digital Broadcasting Terrestrial (ISDB-T) signals is implemented on a software-defined radio platform using GNU' Not Unix (GNU) radio and the N200 Universal Software Radio Peripheral (USRP). Real-time implementation and experimental tests were conducted in Metro Cebu, a highly urbanized area in the southern part of the Philippines. Extensive tests and measurements were necessary to determine spectrum availability, particularly in the TV band. This is in support of the Philippine government' efforts to provide internet connectivity to rural areas. Experimental results have so far met IEEE 802.22 requirements for energy detection spectrum sensing. The designed system detected signals at -114 dBm within a sensing time of 100 ms. Furthermore, the required $P_d({\geq}90)$ and $P_{fa}({\leq}10)$ of the standard were also achieved with different thresholds for various signal sources representing primary users.

• Asia pacific journal of information systems
• /
• 제12권3호
• /
• pp.89-113
• /
• 2002

As Mobile Internet users grow rapidly, Mobile Internet Companies will be in a fierce race to catch a new customer. In this situation, companies want to identify of what factors make peoples use Mobile Internet in order to develop the effective Mobile Internet services and to supply the higher service quality. However, prior researches on Mobile Internet focused on technical area such as higher data delivery, efficient compression of images, so they do not have given companies beneficial materials for making fascinating Mobile Internet service. To offer the service development materials, this research investigated important factors to use Mobile Internet from the viewpoint of customer. Moreover, the study was progressed how much these factors influenced Mobile Internet actual usage. After being surveyed service adopting model and significant factors in Marketing and in MIS(Management Information System), this study was suggested Mobile Internet Adopting Model reflected in Mobile Internet characteristics. To collect the effective data, Internet survey had been done for two weeks. The respondents were identified if they were real Mobile Internet users and how much they had used Mobile Internet for a month. The results were that important factors of Mobile Internet usage were Usefulness, Usability, System Quality and Instant Connectivity. Perceived Value of Mobile Internet influenced Mobile Internet Behavioral Intention significantly and Behavioral Intention had a significant effect on Mobile Intent usage by results. This paper concludes with discussion of these results and their implications for researcher and Mobile Internet company managers.