• Information Systems Review
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• v.26 no.1
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• pp.193-218
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• 2024

This study identified factors related to the technological characteristics of conversational generative AI services and the user's task characteristics. Then, it analyzed the effects of task-technology fit on user satisfaction and continued use. The effects of trust, which represents the degree of users' belief in the information provided by generative AI, on task-technology fit, user satisfaction, and user continuance intention were also examined. A survey was conducted among users of various age groups, and 198 questionnaires were collected and analyzed using SmartPLS 4.0 to validate the proposed model. As a result of hypothesis testing, it was confirmed that language fluency and interactivity among technology characteristics and ambiguity among task characteristics significantly affect user satisfaction and intention to continue using via task-technology fit. However, creativity among skill characteristics and time flexibility among task characteristics did not significantly affect task-technology fit, and trust did not directly affect task-technology fit and intention to continue using, but only positively affected user satisfaction. The results of this study can provide meaningful implications for vendors who want to develop and provide conversational generative AI services or companies who want to adopt generative AI technology to improve business productivity.

• Journal of Korea Society of Digital Industry and Information Management
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• v.20 no.3
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• pp.85-99
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• 2024

In this study, as part of an effort to help North Korean defectors adapt to South Korean society in the era of digital transformation, we attempted to analyze factors that affect North Korean defectors' satisfaction with self-employed tax agency services. The research method was analyzed using exploratory factor analysis and structural equation techniques using the LISREL statistical package. The research results are summarized as follows. First, the factors affecting the satisfaction of North Korean defector self-employed tax agency service users were identified as tax accountant characteristics and user characteristics. Second, for self-employed North Korean defectors in South Korean society, improving user characteristics is important in the initial settlement stage, strengthening tax accountant characteristics along with user characteristics is important in the mid-term settlement stage, and only strengthening tax accountant characteristics is significant in the long term. These research results are interpreted as having a great influence on the lifestyle and culture of North Korean society where North Korean defectors lived.

• Journal of Korea Society of Digital Industry and Information Management
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• v.14 no.3
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• pp.127-144
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• 2018

The differentiation of this study is largely based on the above discussion. First, I would like to examine the main factors that affect the image of the local government's special transport agencies in terms of users and suggest strategic options for promoting the local government's special traffic. Second, a public service approach is very necessary considering the concept of new public transport such as local government special transport, individual use experience and social impact. The purpose of this study is to demonstrate the characteristics of local government special traffic through the five important factors of the service quality which are not capable of objectively measuring the characteristics of the service.

• Archives of design research
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• v.20 no.3 s.71
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• pp.203-214
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• 2007

This study proposes an information retrieval method reflecting the user's preferences based on the fuzzy set theory to develop information contents which support pedestrian's navigation. Firstly, the research evaluated subjects' preferences on commercial spaces set to a hypothetical destination. Also it surveyed the causal relationship between the visual characteristics and the emotional characteristics to propose methods of Navigation Knowledge Base (NKB). The NKB was composed of three elements; 1. the correlation model between emotional characteristics, 2. the causal relationship between visual characteristics and emotional characteristics, 3. the transformation model between visual characteristics and the physical characteristics. Secondly, this study classified the pedestrian's destination search into 4 types with his or her preferences and the time conditions limited during navigation. For each type it presented the Destination Search Algorithm (DSA). Finally, the research simulated the destination search in 4 navigation types using NKB and DSA and verified the availability of the information retrieval method reflecting pedestrian's preferences. In conclusion, the proposed information search method will be applied to reflect the user's preferences to develop information appliances.

• Journal of the Ergonomics Society of Korea
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• v.31 no.2
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• pp.299-308
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• 2012

Objective: This study presents the conceptual framework and the conceptual model to account for user experience by expanding the existing concepts of usability, in particular considering the user-interface environment in digital convergence. Background: To better understand a variety of users interacting with a converged product based on digital technologies, there seems to be a limit to consider the existing concepts of usability. All possible aspects of user's interaction with a product in a context of use need to be taken into consideration. Method: This study identifies the concept of user experience through a comprehensive literature review. Results: First, this study reviews the existing concepts of usability and user experience. And then this study describes four main components in the conceptual framework of user experience: user's internal states, user's external states, a product, and various outcomes, each of which encompasses distinct sub-components. The conceptual model of user experience accounts for how user's internal states change over time and for how different sub-components affect actual behavior of use. Conclusion: It is expected that these user experience concepts can be used in basic resources to better understand different behavioral characteristics of users and to better design interactive products in converged digital environments.

• Journal of the Ergonomics Society of Korea
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• v.29 no.1
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• pp.93-100
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• 2010

In this study, user survey and some experiments were carried out to identify older adults' characteristics and needs for shower chair design. Firstly, the category and design components of shower chair were analyzed through product analysis. Secondly, older adults' needs for shower chair were identified through user interview and observation. Thirdly, experiment to measure older adults' motion, EMG, and body pressure while using shower chair was carried out and then older adults' characteristics for the use of shower chair were identified. Finally, the direction of design for shower chair was proposed to improve older adults' satisfaction.

• The Journal of Society for e-Business Studies
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• v.15 no.2
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• pp.205-217
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• 2010

IPTV Service was launched with great expectation, but it is having difficulty due to the low number of subscribers and contents. In addition, the study of IPTV is still in its infancy and most of previous studies are only focused how IPTV is adopted and spread. In this study, we defined that resistance is the users not tend to accept IPTV service, and analyzed factors affecting resistance which are Innovative characteristics, User characteristics, Service characteristics and proposed implications for IPTV service vitalization. The results that relative advantage, complexity, attitude of an existing product, contents, cost, innovativeness have significant effects on resistance to IPTV.

• Asia pacific journal of information systems
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• v.15 no.2
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• pp.97-120
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• 2005

As information systems are introduced in organizations, user attitudes toward IS are crucial factors for the success of such systems. Hence, understanding what affects user attitudes should be a major concern in MIS research. The purpose of this study is to improve the understanding of social influence on IS adoption. Social influence construct is stretched to include four items: subject norm, image, visibility, and voluntariness. Also, this paper examines the roles of two moderators regarding social influence: user characteristics and IT maturity. We could find that 1) social influence has a significant impact on perceived usefulness(PU), perceived ease of use(PEU), and intention, 2) the social influence on PU is more noticeable for knowledge worker than for undergraduate student, and 3) social influence on knowledge worker's PU is stronger for emerging IT(e.g., wireless internet services) than for mature IT(e.g., spreadsheet software).

• Korean Institute of Interior Design Journal
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• v.15 no.2 s.55
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• pp.99-107
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• 2006

People with visual impairments are difficult to go to education facility by themselves, because of their limited visual ability, orientation, and usability field, so they prefer dormitories. Those dormitories playa role in living space, education, communication and culture function. Therefore those facilities planned more user centered design, since they are influenced by user actability and their values. User centered designs that match between the user and space are understood as well as their characteristics and behavior. Especially for understanding their activity, observation is conducted about their behavior in dormitories. Thus the purpose of this study is suggested to be a basic source that planning about residential facility for people with visual impairments through interview and observation investigation by analysis that they resident in space motion and performance.

• Asia pacific journal of information systems
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• v.10 no.3
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• pp.181-197
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• 2000

The purpose of this study is to confirm whether the fit between the task and the information characteristics makes any effects on the user satisfaction. The task is defined as two sub-constructs representing the degree of exception and analyzability. The information characteristics is divided into the degree of aggregation, scope and timeliness of information. User satisfaction was used as a surrogate measure of the performance of information systems. The computer self-efficacy was used to control any confounding effects. Field research method using questionnaires was employed to empirically investigate the relationship among the variables. Findings of the study are summarized as follows: the fit between the task and the aggregation of information and between the task and the scope of information turned out to have significant effects on information system performance. The implication of such results is that under highly exceptional or less analyzable task environment, less-aggregated or broad information is more appropriate.