• The Journal of the Korea Contents Association
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• v.7 no.4
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• pp.91-102
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• 2007

Post-modern period differentiates itself from Modern period in many aspects. One of these is the emphasis on phenomena which are ephemeral and changing. This paper looks at the psychological bases of these expressions of time & change in contemporary design and their affordances on human behavior. It also analyzes the types of time & change design on the basis of the behaviors they afford. This will lead us to the understanding of how the design including time & change expresses the spirit of the age and how it can play positive roles in human psychology.

• The Journal of the Korea Contents Association
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• v.10 no.5
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• pp.185-201
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• 2010

Interactive space became one of the major design paradigms. For elevating the interactive effect in this, we need user-centered design methodology which uses the influential factors on the interactivity. As the second paper of three-linked studies for the interactivity in the interactive space, this research analyzed the interface factors' specific attributes for supporting behavioral participation. 'Interface' is one of three main factors on the interactivity(Intersubject/Interface/Interaction). Its role in the interactive space is to induce or support user's participations which bring the interactive changes into the designs. Qualitative case analysis was the main method and 30 cases were investigated. 'Individual analysis-Transitional description-Generalization' were the progressive steps for case analysis. As final results, 17 attributes for supporting behavioral participation were analyzed.

• The Journal of The Korea Institute of Intelligent Transport Systems
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• v.15 no.3
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• pp.85-93
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• 2016

According to Traffic Accident Statistics, the fatalities of accident while crossing is over represented. So, more active safety countermeasure should be considered to reduce the frequency and degree of severity of pedestrian-crossing involved accidents. The study analyses the safety effects of the Crossing Safety Assistant System which is composed of Led-embedded crosswalk lightings, text displayer and audio waning device for the safety consciousness both pedestrian and vehicles at crosswalk area. Operating speed of vehicles is reduced with statistical significance, and the level of vigilance expressed by pedestrian head movement to check out the vehicle existence is improved.

• Journal of the Korean housing association
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• v.27 no.6
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• pp.9-18
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• 2016

This research was aimed at finding clues of improving behavioral affordance of the residential environment by scrutinizing change of the residents' behavior in a livingroom depending on the child's development stage. 30 double-income families with one child were the subjects of depths interview, survey, observation of this research, who were residents of 3-bedroom apartment housing in Seoul. They presented obvious different behavioral patterns according to their child's development stage. Breeding and playing behavior were prior to the others when their child was in childhood, then relaxing with TV and PC behavior were getting superior when their child was in school period. It is important that residents perceive that the numerous types of behavior may take place in a livingroom, some of which has originated in our long residential culture. And then real housing should be provided to them that has proper behavioral affordance to support all those behavior. Housings with minimum walls and rooms would make it possible. A family has its inner dynamics can live a sustainable life in that housing as a home, that lasts along their whole life.

• Journal of The Korea Institute of Healthcare Architecture
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• v.16 no.2
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• pp.37-45
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• 2010

This study is the analysis of characteristics of hospital space for the holistic healing environment of children on the basis of the healing theory on emotion of Max L$\ddot{u}$scher and the healing theory on senses of Rudolf Steiner of the overseas children's hospitals. According to the theory of Rudolf Steiner, children make comprehensive advancement of physical, spirit and soul through the interaction of 12 senses. In addition, Max Luscher asserts that the psychological health can be maintained when the 4 emotional status in content, confidence, self-esteem and liberty make the balance. The 4 elements of Luscher have correspond with spatial expression elements for refuge, flow, prospect and void, and this is analyzed in conjunction with the eight kinds of behavior affordance of ying and yang (-, +) that helps our the advancement of 12 senses of Steiner. WORK & STUDY(+), REST(-), MOBILITY(+), VISUAL SEQUENCE(-), SOCIAL EXCHANGE(+), REFRESHMENT(-), COMMUNITY(+) and MEDITATION (-) would be the 8 kinds of behavioral affordances to make the healing environment as presented in this study and the case analysis for children's hospitals have been undertaken.

• Journal of the Korean Society for information Management
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• v.37 no.3
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• pp.221-252
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• 2020

According to the participants, the current K-MOOC (Korean Massive Open Online Course) has a few problems, such as too few courses, low content quality, and useless learner management system compared to MOOCs abroad. These problems caused diminished learner motivation. Consequently, the K-MOOC service has recorded a low course completion rate despite high expenses spent to develop the contents and thus requires remedies to fix the issues. This study drew research subjects from a pool of college and graduate students representing the primary users of the K-MOOC. This study limited the research scope to the four categories: motivation, learning experience, recognition, and performance of the Biggs' 3P Learning System Model. Based on the literature review, ten variables were selected and explored how the subjects perceived four categories using the survey questionnaire. This study also examined the relationship between ten variables and generated suggestions for the instructors, course managers, and platform developers to make the K-MOOC better.

• 한국노년학
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• v.30 no.3
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• pp.759-778
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• 2010

The purposes of this study were to identify living behavioral patterns in of single or couple elderly households in residential environment, to find out ubiquitous home services for the elders, and finally to suggest the ubiquitous home services according to each household's type. For this study, literature review, field works for ubiquitous home services for the elders, and in-depth interview and observation by 74 elderly participants were conducted. The major findings of the study were as follows: single or spouse elderly households were classified into 8 types according to the combination of their household types, income level, and health status. Among 8 types, 2 types were excluded for final analysis due to small sample size. Living behavioral characteristics of 6 types were analyzed and the behavioral pattern of each type was drawn. Based on this behavioral pattern of each type, ubiquitous home services which meet the needs of each type were suggested. The implications and limitations of this study were also discussed and the suggestions for further studies were recommended.

• Proceedings of the KAIS Fall Conference
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• 2004.11a
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• pp.124-126
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• 2004

무선 근거리 통신망의 보급이 확대로 인해, 기존의 유선 통신망을 이용한 데이터베이스 접근을 중심으로 고려한 데이터베이스 시스템의 구조는 새로운 무선 접근 경로를 이용하는 사용자들을 효율적으로 지원해야 한다. 무선 통신망의 성능이 비교적 느린 전송 속도와 무선 통신망을 이용하는 사용자의 이동성은 데이터베이스 시스템의 환경에 변화를 필요로 하게 한다. 막대한 데이터의 양과 많은 수의 사용자를 동시 지원을 위한 과거 클라이언트-서버 두 계층 구조는 데이터의 지원이 서버에 국한되어 성능의 한계를 가지고 있다. 이 논문은 클라이언트-서버 데이터베이스 시스템의 구조를 사용자들의 데이터 사용 행태를 분석하여 데이터 서비스를 서버와 클라이언트에 분산시켜 시스템 효율을 증가시킬 수 있는 새로운 데이터베이스 시스템에 대해 논의한다. 실제 활용성의 검증을 위해 시뮬레이션 기법을 사용하여 효율을 예측하였다.

• Journal of Korean Society of Transportation
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• v.35 no.4
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• pp.332-347
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• 2017

Analysis of the interaction between the automated vehicles and manual vehicles is very important in analyzing the performance of automated cooperative driving environments. In particular, the automated vehicle platooning can affect the driving behavior of adjacent manual vehicles. The purpose of this study is to analyze the lane change behavior of the manual vehicles in automated vehicle platonning environment and to conduct the experiment and questionnaire surveys in three stages. In the first stage, a video questionnaire survey was conducted, and responsive behaviors of manual vehicles were investigated. In second stage, the driving simulator experiments were conducted to investigate the lane change behaviors of in automated vehicle platonning environments. To analyze the lane change behavior of the manual vehicles, lane change durations and acceleration noise, which are indicators of traffic flow stability, were used. The driving behavior of manual vehicles were compared across different market penetration rates (MPR) of automated vehicles and human factors. Lastly, NASA-TLX (NASA Task Load Index) was used to evaluate the workload of the manual vehicle drivers. As a result of the analysis, it was identified that manual vehicle drivers had psychological burdens while driving in automated vehicle platonning environments. Lane change durations were longer when the MPR of the automated vehicles increased, and acceleration noise were increased in the case of 30-40 years old or female drivers. The results from this study can be used as a fundamental for more realistic traffic simulations reflecting the interaction between the automated vehicles and manual vehicles. It is also expected to effectively support the establishment of valuable transportation management strategy in automated vehicle environments.

• Proceedings of the Korean Operations and Management Science Society Conference
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• 2006.11a
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• pp.93-103
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• 2006

소비자의 하이테크 서비스 가입 이후 행태를 살펴보면, 가입자들은 서비스를 실제로 사용하기도 전에 가입 해지결정을 내리기도 한다. 최근 미국의 기간통신회사에서 출시된 인터넷전화 서비스의 경우, 출시 후 1년 반 동안 이탈한 고객 중 무려 60%정도가 서비스를 실제로 사용하기 전 상태인 네트워크 및 시스템이 준비되는 동안이나 소비자가 가정에서 전화기 연결용 어댑터를 설치하는 단계에서 이탈한 것으로 나타났다. 이와 같은 가입초기 고객의 이탈은 기업에게 고객획득과정에서 지출된 마케팅비용의 손실 및 미래의 매출감소뿐만 아니라, 기 가입자를 통한 미래의 가입 희망자에게 미칠 수 있는 긍정적 구전효과와 같은 간접효과에 대한 손실을 의미한다. 하지만 하이테크 서비스에 대한 소비자의 가입 후 행태에 대한 기존연구는 고객불평 연구, 서비스 사용 후 발생하는 정상적 이탈행태(normal churn)에 대한 연구, 또는 탐색적 연구를 제외하면 매우 부족하다. 더욱이 하이테크서비스의 특성을 고려한 서비스 출시초기에 소비자의 가입직후 해지결정에 대한 결정요인 연구는 그 필요성에 비해 연구가 전무하다시피한 실정이다. 본 연구에서는 하이테크 서비스에 대한 소비자의가입시점과 실제 사용시점 사이에 발생하는 소비자의 이탈행태를 이탈시점에 따라 '가입직후 이탈(immediate churn)' 과 '가입 후 이탈(earlychurn)'로 정의한 후, 특히 가입직후 고객의 이탈행태를 설명하기 위해 하이테크 서비스에 대한 소비자의 이전 사용경험정도와 서비스에 대한 정보를 획득한 채널의 정보전달 풍부성 등을 연구모형에 포함하였다. 이 기간 동안에 기업은 서비스 제공에 필요한 부수적인 기기 제공 및 서비스 준비 등을 수행하지만, 동시에 소비자는 여러가지 이유로 가입결정을 제고할 수도 있게 된다. 제안된 연구모형에 대한 실증분석을 위해 미국 유수의 기간통신회사에서 2004년 출시된 인터넷전화(Voice over Internet Protocol: VoIP)서비스에 가입한 12,000여명 의 고객 프로파일과 서비스사용 데이터를 활용하였다. 분석결과 가입자의 하이테크 서비스에 대한 사용경험정도가 낮을수록 서비스 가입직후 바로 해지하는 경향을 보였다. 하지만 하이테크 서비스에 대한 이전 사용경험이 낮은 경우라도, 가입 후서비스를 실제로 사용하였다면 서비스에 대한 가입해지 경향은 더 이상 나타나지 않았다. 이는 가입자의 하이테크 서비스에 대한 이전 사용경험정도가 가입직후 해지에만 영향을 미치는 요인임을 보여준다. 또한 매체의 정보전달 풍부성 (media richness)이 상대적으로 높은 소매점이나 웹사이트를 통해 서비스에 가입한 소비자일수록 가입 직후뿐만 아니라 서비스사용 이후에도 낮은 해지성향을 나타냈다. 이러한 분석결과를 바탕으로 인터넷전화 서비스에 적합한 고객지원 프로그램 설계와 마케팅 매체선정과 관련한 전략적 시사점을 도출한다. 그리고 국내에서 최근 이슈가 되고 있는 차세대 무선인터넷 서비스인 와이브로 출시에 따른 마케팅 및 고객관리와 관련된 시사점을 논의한다.