• Journal of the Korea Society of Computer and Information
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• v.28 no.1
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• pp.9-16
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• 2023

In the IoT environment, various objects mutually interactive, and various services can be composed based on this environment. In the previous study, we have developed a resource collaboration system to provide services by substituting limited resources in the user's personal device using resource collaboration. However, in the preceding system, when the number of resources and situations increases, the inference time increases exponentially. To solve this problem, this study proposes a method of classifying users and resources by applying the BIG5 user type classification model. In this paper, we propose a method to reduce the inference time by filtering the user's preferred resources through BIG5 type-based preprocessing and using the filtered resources as an input to the recommendation system. We implement the proposed method as a prototype system and show the validation of our approach through performance and user satisfaction evaluation.

• The Journal of the Institute of Internet, Broadcasting and Communication
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• v.23 no.1
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• pp.117-122
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• 2023

This paper introduces the improved and expanded contents of the previous research that implemented a system that guides the visually impaired using the vibration of a smart watch. In the previous study, we proposed an algorithm that recommends the most safe route based on calculating negative and positive values for the topography of the route and the features installed on the route. In addition, by designing several vibration patterns, a system that guides the user through vibration was proposed and implemented. In this paper, the user's personal preferences are reflected in the algorithm that recommends the safe route first. In addition, an automatic feedback function was added to the algorithm so that the user's satisfaction evaluation on the recommended route was immediately reflected. A history simulation function was added so that the past route could be reviewed, and the compass of a smart watch was used to help visually impaired people find directions at junctions.

• Journal of The Korean Society of Integrative Medicine
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• v.10 no.2
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• pp.95-104
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• 2022

Purpose : This study aimed to investigate the effects of health science majors' communication skills on their adjustment to college life. Methods : The subjects were 336 college students majoring in health science at colleges located in Busan. The survey's questionnaire comprised 38 items, including 15 items for communication skills and 19 items for adjustment to college life. Results : In the gender-based comparison of communication skills and adjustment to college life, female students had better communication skills, with overall higher scores than male students for the understanding others and communication. In the age-based comparison of communication skills and adjustment to college life, students aged 21 to 22 showed the best communication skills, while students aged 18 to 20 exhibited the least communication skills. In terms of adjustment to college life, those aged 25 or older scored the highest, and those aged 21 to 22 scored the lowest. In the school-year-based comparison of communication skills and adjustment to college life, third- and first-year students showed the best and least communication skills, respectively. Overall, third- and fourth-year students were more adjusted at adjusting to college life than first- and second-year students. Third-year students also scored the highest in academic adjustment, whereas second-year students scored the lowest. In terms of relationships between the students' communication skills and their adjustment to college life, communication skills were positively correlated with the following subdomains: understanding of others, self-expression, and communication. Communication skills also showed a positive correlation with adjustment to the college environment, including personal-emotional adjustment. Conclusions : The present study found that communication skills did not significantly affect health science majors' adjustment to college life. However, given that communication skills are an essential factor for effective work performance and greater job satisfaction, it is recommended that colleges provide students with relevant education and experiences to help them enhance communication skills while in school.

• Journal of the Korean Society for Library and Information Science
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• v.56 no.1
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• pp.151-173
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• 2022

The concept of the sharing economy, which has shifted the economic paradigm from possession to access to resources, is consistent with the traditional and current roles of public libraries. Thus, this research empirically analyzed the influence relationships between public library use and the sharing economy. Results showed that participation in public library programs serves as a motivational factor for satisfaction with and trust in the sharing economy, while the use of public library facilities and equipment is correlated with attitudes toward and participation in the sharing economy. The use of library collections positively influences sharing intangible resources such as knowledge, information, and personal experience. By contrast, checking out library resources negatively influences the recognition of economic benefits from sharing, which is contrary to claims of library communities. Based on these results, public libraries should aim to have a complementary effect on the sharing economy founded not only on information networks but also human networks grounded in social relationships.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.897-908
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• 2022

The purpose of this study is to prove the hypothesis that the learning transfer climate, such as individual learning self-efficacy and corporate innovative knowledge transfer, will play a mediating role in the relationship between design competency strengthening education and individual performance considering the designer's characteristics. This is meaningful in expanding the meaning of design education and training by quantitatively analyzing the learning transfer climate that affects learning self-efficacy and organizational culture according to the characteristics of designers, unlike existing studies that simply investigate the satisfaction of education. Specifically, this study set up seven hypotheses, and as a result, it was found that design capacity building education for designers, learning self-efficacy, and learning transfer climate of companies had a significant effect on individual performance.

• KSII Transactions on Internet and Information Systems (TIIS)
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• v.16 no.11
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• pp.3694-3722
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• 2022

In today's globalized world, there is no transparency in exchanging data and information between producers and consumers. However, these tasks experience many challenges, such as administrative barriers, confidential data leakage, and extensive time delays. To overcome these challenges, we propose a decentralized, secured, and verified smart chain framework using Ethereum Smart Contract which employs Inter Planetary File Systems (IPFS) and MongoDB as storage systems to automate the process and exchange information into blocks using the Tendermint algorithm. The proposed work promotes complete traceability of the product, ensures data integrity and transparency in addition to providing security to their personal information using the Lelantos mode of shipping. The Tendermint algorithm helps to speed up the process of validating and authenticating the transaction quickly. More so in this time of pandemic, it is easier to meet the needs of customers through the Ethermint Smart Chain, which increases customer satisfaction, thus boosting their confidence. Moreover, Smart contracts help to exploit more international transaction services and provide an instant block time finality of around 5 sec using Ethermint. The paper concludes with a description of product storage and distribution adopting the Ethermint technique. The proposed system was executed based on the Ethereum-Tendermint Smart chain. Experiments were conducted on variable block sizes and the number of transactions. The experimental results indicate that the proposed system seems to perform better than existing blockchain-based systems. Two configuration files were used, the first one was to describe the storage part, including its topology. The second one was a modified file to include the test rounds that Caliper should execute, including the running time and the workload content. Our findings indicate this is a promising technology for food supply chain storage and distribution.

• Journal of Digital Convergence
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• v.20 no.5
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• pp.363-373
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• 2022

This study aims to investigate the essential meaning of college life based on understanding the lived experiences while participating in the extracurricular programs. This study was designed according to Giorgi's phenomenological research method to comprehend and grasp the meaning of the essential experience of each individual. Data collection for this study was conducted by a semi-structured in-depth interview with 6 participants who had engaged in the extracurricular program delivered by the department of Aviation Services. This study suggests that the experiential attributes of engaging in extracurricular classes and the meaning of involving extracurricular activities were derived into four themes each. The finding discovers that the meaning of college life including, 'improve in satisfaction of college life', 'various college life', 'memories of college life', and 'motivation for college life'. The conclusion to be drawn here is that the experience of participating in various extracurricular programs was shown to be a path of transitional process of personal growth. The significance of this study is that it revealed the extracurricular activities added a new meaning to their college life based on the interviewee's lived experience.

• Journal of the Korea Society of Computer and Information
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• v.27 no.6
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• pp.123-130
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• 2022

In this paper, we propose a crucial issue to require further management plan for Korean hospital nurses in burnout during COVID-19 pandemic. The purpose of this study was to conduct a systematic review of factors related to hospital nurses in burnout for the COVID-19 outbreak. Appropriate studies in the recent three years were selected from database. To perform a systematic review, the databases of RISS, KISS, DBPIA, and Kyobo scholar were searched using the key words, 'nurse in burnout' or 'burnout for nurse'. Fifty-five references were checked, but only seven studies were decided inclusion criteria to review. It was founded that Korean hospital nurses felt moderate or higher burnout level for COVID-19 pandemic. We were confirmed that related factors of hospital nurses in burnout were personal characteristics, physical symptom, depression, compassion satisfaction, compassion fatigue, and resilience, and occupational characteristics, shift work and job stress. It may be necessary to provide regulating programs for hospital nurses in burnout and to set up a policy and guidelines so as to reduce burnout of nurses working.

• Fashion & Textile Research Journal
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• v.24 no.4
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• pp.418-430
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• 2022

This study aims to analyze consumers' purchase decision-making process of buying avatar fashion items on the Metaverse platform. Drawing on the connection between the self-expression tendency of the MZ generation and that of avatars in the Metaverse, this study uses a qualitative research method to analyze how consumers express their self-image through the appearance of their avatars. Unlike previous studies on the clothing purchase decision-making process, this study shows that purchasing and consumption behavior involve the following six stages: recognizing desire, collecting information, evaluating alternatives, making purchases, evaluating the consumption, and post-purchase action-taking. In the first stage of the purchase decision-making process, consumers' desire arises with self-image expression and confirmation. In the second stage, consumers have a high tendency to shop in the best item category. In the alternative evaluation stage, consumers tend to seek items that match their highest standard while considering their personal preferences. In the fourth stage, when making actual purchases, unplanned purchase behavior often occurs along with an active practice of alternative evaluation. In the fifth stage, the evaluation of the consumption shows that consumers achieve satisfaction by applying a style to their avatars that they are unable to try in the real world. In the last stage, consumers often use their purchases to communicate their various styles with other online consumers. Therefore, we conclude that the online purchase decision-making process differs from the offline process as it is divided into six stages.

• Journal of Korea Society of Industrial Information Systems
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• v.15 no.2
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• pp.115-126
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• 2010

Modern society can be described as ubiquitous computing over the concept of information. Information technology(IT) has been developing in a way that relative technologies are integrated to each other. Especially in ubiquitous environment, medical information industry shows significant interest in the U-healthcare service area. This paper will first look into U-healthcare service environment and component of Integrated Medical Information Systems(IMIS). Secondly, it examines the basic technological factors for integrated medical information systems, which is datawarehouse, network, communication standards and technology related U-healthcare service. Finally it proposes how to implement and operate new integrated medical information system for ubiquitous health care service. The system will do point of care(POC) for customers by real time and diagnose them using their various and personal medical data. The information will be communicated back to the customers, which will improve their satisfaction.