• Proceedings of the Korea Information Processing Society Conference
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• 2013.05a
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• pp.871-874
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• 2013

사용자 경험은 사용자가 제품을 사용 하면서 상호 작용을 통해 얻게 된 경험을 의미 하며 과정지향적인 인터랙티브 제품 일수록 보다 나은 경험을 위해 경험요소를 계획 하고 구성 하는 사용자 경험 디자인의 비중이 높다. 이는 어플리케이션의 기술적 완성도 및 상업적 성공 여부에도 영향을 미친다. 본 논문은, 인터랙션 디자인 분야의 사용자 모델 퍼소나(persona)와 이를 도입한 퍼소나 기반 시나리오 기법(Persona-Based Scenario)을 통하여 도출해낸 요구 사항을 토대로 기존의 사용자 경험 설계 연구 보다 사용자 중심적으로 향상된 인터랙션 프레임워크를 제공 하는데 목적을 두고 있다.

• Journal of the Semiconductor & Display Technology
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• v.20 no.1
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• pp.42-47
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• 2021

In this study, we developed an application that can efficiently store and manage food ingredients in refrigerators. Rather than purchasing a new smart refrigerator, a small 'pocket scanner' is inserted inside the refrigerator using an existing refrigerator to track the location of food entering and leaving the refrigerator to efficiently organize the refrigerator and save time searching for ingredients. In addition, since it can automatically record the distribution period and purchase date, it notifies users through an alarm when the distribution period expires or is shortly left. As for the research method, after discovering the needs of users through in-depth interviews, the reactions of users were investigated by adding functions that fit those needs. Users felt satisfied with managing food efficiently through the 'pocket scanner' attached to the refrigerator and answered that it was very economical because various smart functions could be used without changing to a smart refrigerator. In the next study, we will also examine the usability of the application through usability evaluation.

• Journal of the Semiconductor & Display Technology
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• v.22 no.1
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• pp.99-103
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• 2023

NFT technology is mostly used to create digital drawings, characters, and items, and to simply buy and sell, but research and development to spread to various contents of NFT are somewhat marginal. Therefore, this study aims to solve the above-described problems. Depending on the exercise performance, it allows users to create and trade custom NFTs. In addition, it supports users to own customized digital works through exercise performance or to make money by trading them. Through it, the aim is to enhance users' positive interest in exercise and provide devices and methods for providing customized NFT creation and trading services that can help them develop exercise habits.

• Journal of the Korean Institute of Plant Engineering
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• v.23 no.4
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• pp.77-83
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• 2018

Nowadays, as IT industry is being developed, many studies are in progress in the areas of user interface (UI) and user experience (UX) and interest in the icons related to these areas are rising accordingly. IT developments have also influenced the vessel sector promoting the development of navigation equipment and systems utilizing IT. However, due to complicated functions of navigation equipment and systems, concerns have been noted about the increased cognitive burden on officers, along with the need for researches on reducing such burden. This study, therefore, was conducted focusing on the design of icons that will reduce cognitive burden on officers when using a typical navigation equipment such as ECDIS(Electric Chart Display and Information System). Based on a survey conducted with experts who have rich experiences in navigation and are currently teaching ECDIS in universities, the present study identified the functions of ECDIS, for which icons should be designed. Accordingly, suitable icons for ECDIS were designed and their effects were evaluated. It is expected that the results of this study will be used as basic data for the design of icons for other navigation equipment in the future.

• The Journal of the Korea Contents Association
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• v.22 no.10
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• pp.22-38
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• 2022

Recently, due to the temporary closure and isolation of facilities for developmental disabilities due to the prolonged COVID-19, the pain suffered by consumers is getting worse, and there is no clear solution due to the lack of information on inpatient services. Therefore, there is a need for a service system that can prevent institutional and psychological problems for consumers. The purpose of this study is to provide systematic inpatient treatment guides, post-discharge management, and correct education for children with developmental disabilities and their guardians. After deriving the needs and improvement factors of consumers through domestic service case analysis, we conducted co-creation with end-users using the double diamond methodology. A possible service concept was derived. Accordingly, a collaborative sharing app service was proposed, and the usefulness of the service was confirmed through the usability evaluation and verification of various stakeholders. It is expected that the results of this study will be utilized in the development of an assistance system for the developmental disability ward based on user experience.

• Design Convergence Study
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• v.16 no.5
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• pp.177-190
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• 2017

This research aims to suggest a multimodal non-touch gesture interface design to improve the usability of 3D sculpting task. The task and procedure of design sculpting of users were analyzed across multiple circumstances from the physical sculpting to computer software. The optimal body posture, design process, work environment, gesture-task relationship, the combination of natural hand gesture and arm movement of designers were defined. The preliminary non-touch 3D S/W were also observed and natural gesture interaction, visual metaphor of UI and affordance for behavior guide were also designed. The prototype of gesture based 3D sculpting system were developed for validation of intuitiveness and learnability in comparison to the current S/W. The suggested gestures were proved with higher performance as a result in terms of understandability, memorability and error rate. Result of the research showed that the gesture interface design for productivity system should reflect the natural experience of users in previous work domain and provide appropriate visual - behavioral metaphor.

• Design Convergence Study
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• v.16 no.6
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• pp.137-152
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• 2017

This research aims to develop the companion robot experience design for elderly in korea based on needs-function deploy matrix of robot and emotion expression research of robot in multimodal interaction. First, Elder users' main needs were categorized into 4 groups based on ethnographic research. Second, the functional elements and physical actuators of robot were mapped to user needs in function- needs deploy matrix. The final UX design prototype was implemented with a robot type that has a verbal non-touch multi modal interface with emotional facial expression based on Ekman's Facial Action Coding System (FACS). The proposed robot prototype was validated through a user test session to analyze the influence of the robot interaction on the cognition and emotion of users by Story Recall Test and face emotion analysis software; Emotion API when the robot changes facial expression corresponds to the emotion of the delivered information by the robot and when the robot initiated interaction cycle voluntarily. The group with emotional robot showed a relatively high recall rate in the delayed recall test and In the facial expression analysis, the facial expression and the interaction initiation of the robot affected on emotion and preference of the elderly participants.

• Science of Emotion and Sensibility
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• v.18 no.2
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• pp.65-74
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• 2015

Nowadays, people start to focus on the value of 'Mindfulness' and 'Slowness', instead of the importance of 'Development' and 'Advancement' in their whole life. According to this background, we attempted to find new research opportunities on User Experience(UX) in usage context of 'Erasing'. Through a interdisciplinary literature review on related works regarding the concept of erasing, we tried to understanding the meaning of erasing within the perspective of philosophy, psychology, and human-computer interaction(HCI). We also conducted the contextual inquiry, one of the qualitative research methods to examine the actual usage context and the user's experience, with 79 users who were required to erase something in three usage contexts, including Paper-Eraser condition, Computer-Keyboard condition, and Tablet PC condition. The results indicate that it is important to provide not only effective erasing but also satisfaction for users in the usage-context of erasing. From these attempts, we expect that our findings will be helpful to understand the meaning of the erasing in academic and practical fields.

• Journal of Digital Contents Society
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• v.12 no.3
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• pp.263-270
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• 2011

The importance of effective delivery of information in the mobile web is increasing in Korea, due to the growing number of smart-phone users. In this study, I took a look at the characteristics of mobile devices and the mobile web, and after researching Korea's portal websites' mobile web designs, we figured out the users' preferences of mobile web designs through surveys and interviews. To provide compressed information on a small screen, it is ideal for significant contents to show up in the state that does not require scrolling. Users preferred compact and neat designs, and menus that were made with icons that are easy to touch with fingers, in the mobile web. When receiving delivered information, users preferred not only texts but texts that were provided together with photograph images. If usability evaluations and examination of preferences are achieved together, I think it will serve as a mobile web guideline that enables efficient delivery of information in the mobile web.

• Design Convergence Study
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• v.14 no.1
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• pp.1-13
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• 2015

The purpose of this paper is to find out what values users pursue from a smart device based education service. For this purpose, a survey was conducted using a questionnaire that was developed based on the results of literature review and user interviews. Thirteen user expectation values were developed from the results of the survey: individually customized learning, anytime anywhere learning, learning for career, learning through interaction, learning from diverse resources, learning through cooperation, learning through interchange, self-directed learning, learning within actual context, learning with feedback, learning in spare time, learning with motivation & compensation, and step-by-step learning. In addition, the results of the survey also showed that the user expectation values of women, high school students and people who responded that they knew the smart device based education service very well were higher than those of other users.