• 통상정보연구
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• 제8권1호
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• pp.3-13
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• 2006

To develop and validate an instrument to measure user satisfaction in Internet shopping environment, the EUCS instrument by Doll and Torkzadeh (1988) was used for this research. The results of the study shows how the main constructs of the model that will eventually interact for the user satisfaction in internet commerce environment. This research will present significant progress towards keeping the End-User Computing Satisfaction instrument relevant and applicable under the Internet shopping environment.

• 한국주거학회:학술대회논문집
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• 한국주거학회 2005년도 추계학술대회 논문집
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• pp.63-66
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• 2005

The purpose of this study is to suggest the modeling of ubiquitous environments according to the analysis of user's behaviors focused on the living area within the house. Recently, with appearing 'Ubiquitous environments', the applications of ubiquitous technologies on the our environment adopt a new paradigm. This new paradigm leads to the possibility of creating more intellectual dwelling environment according to user's behaviors. This paper suggests to change our dwelling by considering both engineering technology and the character of dwelling, because the house should provide causes humans with comfortability. Therefore, we need to understand user's behaviors in the dwelling, towards user friendly environment. Also, it very important for us to configure proper sensors and technologies by the priority based on user's behaviors. To sum up, this study is aimed to analyze user's behaviors and then, to suggest the guideline for users offering optimal ubiquitous environments.

• 한국게임학회 논문지
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• 제9권2호
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• pp.125-133
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• 2009

게임 인공지능은 플레이어에게 지능적이고 적응된 게임 환경을 제공하기 위해 주로 사용된 다. 기존에는 사용자의 게임 행위를 수집/분석하여 동반자 또는 적대적 역할을 하는 Non-player character (NPC)를 위해 사용되었다. 그러나 사용자의 행동을 모방하는 것에서 그치는 경우가 많았다. 본 논문은 사용자의 게임 행위를 분석하여 게임 환경을 변화하는 방법을 소개한다. 사용자의 게임 성향을 파악하기 위해 게임 행위 데이터를 이용하였다. 또한, 사용자의 성향은 지형, 아이템, NPC의 분포를 결정하는데 반영하여 동적인 게임 환경을 제공하기 위해 사용하였다. 제안하는 방법의 실험을 위해 실제 2D 액션 게임에 적용하였고, 사용자의 게임 플레이 행위에 대하여 적절히 변화하는 게임 환경을 확인하였다.

• 한국정보시스템학회지:정보시스템연구
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• 제10권1호
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• pp.73-95
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• 2001

A significant body of information systems research is concerned with user participation as a means to improve user satisfaction within systems development. In spite of the many studies in this area, findings are not consistent or cumulative. One of the reasons for this is not to be considered the type of systems. Most research are focusing on traditional system development under the mainframe environment instead of under end-user based environment like web-based information system or ERP. End-user based environment requires user's strong initiatives in the system development life cycle. It means the user\`s simple participation is not enough and user-led-development is more appropriate for the system success. This paper can call this new concept is end-user joint work which means user has to participate in the system development as a co-developer. This paper investigates how the end-user joint work contributes end-user satisfaction and two variables in particular-job complexity and technical competence-moderate the outcomes of end-user joint work Analysis of 112 independent systems development projects indicated that end-user joint work has a direct relationship with end-user satisfaction. In addition, the two variables were found to moderate key roles on this relationship. That is, the strength of this relationship depended on the level of these factors.

• 디지털융복합연구
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• 제11권2호
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• pp.397-405
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• 2013

21세기의 기술은 무선인터넷 기술 발달로 스마트환경을 급속도로 정착시켰다. 이러한 환경 속에 사용자들은 많은 스마트기기와 스마트콘텐츠를 접하고 있다. 본 연구는 스마트환경을 분석하고 스마트매체와 사용자간 인지작용에 대해 알아보고자 한다. 인지작용은 행위를 관찰, 기술하고, 사용자 중심의 시스템을 디자인하고, 사용자를 교육시키는데 매우 중요한 역할을 한다. 이를 중심으로 UX(User eXperience)와 UXD(User eXperience Design)에 대해 이론적 고찰을 하고, '시각적 측면, 상호 동작성(인터렉션) 측면, 기술적 측면'에서 사례 분석하여 효과적인 UXD(User eXperience Design) 인지작용을 사례를 통해 고찰해 보았다. 그 결과 시각적인 측면에서 사용자의 경험을 토대로 쉽게 알고 사용할 수 있는 디자인이 되어야하고, 소리나 인터랙션을 통한 사용자와 기기간의 상호동작(인터랙션)을 하고 있다는 것을 제공해야 하며, 위치기반인식이나 음성인식 등의 기술을 통해 사용자의 편의성을 도와야한다. 본 연구를 통하여 스마트환경과 인지작용의 이해를 돕고, 효과적인 UXD(User eXperience Design) 활용에 도움을 주고자 한다.

• 대한임베디드공학회논문지
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• 제2권4호
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• pp.233-241
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• 2007

In an ubiquitous environment, for controlling user access according to environment of users, a number of access control models enforcing dynamic environment of users have been proposed. However, they do not support personalized environments of each user and have a run-time overhead of searching active roles. In this paper, we propose a new model, PE-RBAC, that extends the RBAC architecture by addition of a personalized environment component as a constraint to accommodate dynamic and mobile users. In this model, a dynamic role activation is presented by using a new role-to-environment structure instead of the conventional role hierarchy, which makes it efficient to find the active roles according to a user's personalized environment.

• 제어로봇시스템학회논문지
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• 제14권1호
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• pp.21-26
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• 2008

It was already realized at a current technological level of home network systems that the systems recognizes a user's simple order and carry out the order in the ubiquitous computing environment. However home is not a simple environment consisting into a large number of family members, so various order and situation would be needed accordingly. From now on we need to reach the technological level to infer that how is the user's behavior patterns and what kinds of service is the fittest to user who belong to the ubiquitous computing environment by using the result of the context interpreter. In this regards, active inferred-model needs to be suggested upgrading user's command into one step more higher level than the simple one adapting diversified feature. This study would like to suggest this active model recognizing context, which is user's environmental information applying basic network and inferring Context-based Service that user wants through the recognized result This study proposes a new method that can infer the user's desire in ubiquitous computing environment. First of all, we define a context as user's information of ubiquitous computing environment situation that user belongs to and we classify the context into 4W1H(Where, Who, When, What) formats. We construct Bayesian network and put the factor of context use as Bayesian network nodes. As a result, we can infer the user's behavior pattern and most proper service for user in the intelligent space from the probabilistic result of Bayesian network.

• 한국멀티미디어학회논문지
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• 제10권6호
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• pp.799-806
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• 2007

The prototypical smart environment to support the context-aware interactions between user and ubiquitous campus environment based on multi-agent system paradigm is proposed in this paper. In this model, the dynamic Bayesian is investigated to solicit and organize agents to produce information and presentation assembly process in order to allocate the resources for an unseen task across multiple services in a dynamic environment. The user model is used to manage varying user constraints and user preferences to achieve system's goals.

• 디지털산업정보학회논문지
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• 제7권4호
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• pp.101-110
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• 2011

The change of digital convergence service environment converted the subject of design into user -centric one instead of developer-centric one, and changed the existing design environment focused on product development into the new user -centric design environment. Accordingly, GUI considering user's usability come to take big shares in those contents being used for multimedia equipments. However, as the present educational contents provide complex interface due to its design produced based on the existing e-learning system, they have many problems in that they don't consider user's usability. Thus this paper aimed to analyze actual examples through GUI elements of educational contents being used for multimedia equipments and attempt to suggest some directions for development. additionally, consider the various characteristics of digital convergence environment and educational contents, and try to set up strategic directions possible to utilize user'-centric interface elements more usefully and properly at the time to produce designs.

• 대한산업공학회지
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• 제35권1호
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• pp.51-57
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• 2009

There are a variety of users and devices in a context-aware computing environment. In this environment, the service provided to a user may be the composition of diverse services rather than one independent service. Before user's devices provide the composite service to the user, they should perceive user's needs by gathering related information segments from other surrounding devices and/or sensors. We consider a context-aware computing environment providing composite and adapted service to users and propose an information processing model that characterizes the device where the collected data should be processed through services and/or applications. Based on this model, we provide an analytical tool to obtain some performance measures of the context-aware computing environment.