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Mitigating Design Fixation: A Visualization Tool for Enhancing Situation Awareness
Dongwook Hwang(황동욱) 대한인간공학회 2021 대한인간공학회 학술대회논문집 Vol.2021 No.11
Objective: The aim of this study is to develop an information acquisition and display system called the Situation Awareness Support System (SASS) to stimulate a designer’s creativity. Background: External stimuli can stimulate a designer’s creativity and improve the outcome of design ideation for product/service concept generation. A psychological phenomenon that may occur during such utilization of external stimuli is design fixation, which is widely believed to adversely affect the ideation outcome. One of the difficulties in preventing or alleviating design fixation is that the designer may not easily detect or predict its occurrence during the mentally demanding task of ideation. Method: The current study develops a situation awareness support system, which helps the novice designer perceive and predict the occurrences of design fixation. The situation awareness support system is empirically evaluated in its utility in mitigating design fixation. Results: The study result shows that the situation awareness support system can help the novice designer to mitigate design fixation while not influencing significant impact on the ideation performance. Conclusion: This is the first research study that attempts to use the concept of situation awareness in order to mitigate design fixation problems.
황동욱(Dongwook Hwang),손민석(Minseok Son),정재문(Jaemoon Jung),박한준(Hanjun Park),박우진(Park, Woojin Park) 한국HCI학회 2013 한국HCI학회 학술대회 Vol.2013 No.1
장애인 보조기기 설계 문제들은 일반적으로 개인 사용자를 위한 맞춤형 설계를 요구하고, 많은 제약조건을 포함하며, 문제의 신속한 해결이 중요시되는 어려운 문제들이다. 따라서 설계자들의 창의성과 문제 해결 능력의 발휘를 지원하여 설계의 효율성과 질을 극대화 시킬 수 있는 설계 방법의 개발이 필요하다. 본 연구에서는 보조기기 설계 문제 해결을 지원하는 새로운 설계 방법으로서 Data-based Assistive Device Design (DADD)라고 명명된 새로운 설계 방법을 개발하였다. DADD 의 활용을 위해서는 기존 장애인 보조기기에 대한 서술/묘사를 저장하고 있는 Design Reference Database 가 필요하다. 설계 문제가 주어지면 설계자는 주어진 문제에 관련된 기존 기기들을 추출하고 그 설계 원리들을 분석하여 이를 주어진 문제에 적용하는 과정을 거쳐 새로운 설계 대안들을 생성한다. The design of assistive devices is subject to multiple challenges: the design problems are mostly case-specific and require customized design solutions. Many design problems are highly constrained, and thus, straightforward solutions are difficult to identify. Yet, rapid generation of viable solutions is important for the quality of life of the affected disabled persons. Therefore, developing effective and efficient design methods that boost designers’creativity and problem solving capabilities, and henceforth, support rapid generation of high quality design alternatives is needed. The current study proposes a new design method termed Data-based Assistive Device Design (DADD). DADD requires a large design reference database (DRDB) that stores descriptions of existing assistive devices. For a given design problem, the DRDB is searched to find examples of existing assistive devices that may relate to the given problem. The designer analyzes the retrieved design references to understand the underlying design principles and relates them to the given problem in order to conceive design concepts.
덕트형 수중 이동 로봇의 선회력 극대화를 위한 방향타 메커니즘 설계
김영현(Yunghyun Kim),황동욱(Dongwook Hwang),김진현(Jinhyun Kim) 제어로봇시스템학회 2017 제어·로봇·시스템학회 논문지 Vol.23 No.9
The ducted-type underwater vehicle has a streamline outer shape and an inner duct. Fluid resistance is small due to streamline appearance, and because of the short length of the body, it has a small turning radius and good maneuverability. In this paper, the design of the rudder mechanism in which the rudder driving part is placed outside the duct is carried out and it is easy to increase the fluid acting area of the rudder compared to the rudder placed inside the duct. The degree of freedom of movement is also increased because it is free from interference and drive angle between rudders. The hydrodynamic analysis of the relationship between the state of the internal flow only and the optimum angle relationship between the driving angles of each rudder for maximizing the turning force was carried out.
소통 의도에 따른 자율주행 차량 커뮤니케이션 체계 제안
송지훈(Song Jihoon),기정민(Ki Jeongmin),황동욱(Hwang Dongwook) 한국HCI학회 2023 한국HCI학회 학술대회 Vol.2023 No.2
최근 자율주행 시스템의 점진적인 발전으로 기존에 통용되어 오던 비상등과 상향등의 차량 간 커뮤니케이션 방식보다 좀 더 세분화되고 구체적인 커뮤니케이션이 가능할 것으로 보인다. 이러한 가능성에도 불구하고, 현재까지 기존의 도로 위 커뮤니케이션 방식을 탈피한 새로운 커뮤니케이션시스템을 제시한 연구가 미비한 실정이다. 다가올 미래의 자율주행 차량과 일반차량이 동시에 주행하게 되는 환경에서는 차량간 또는 차량과 도로 위 보행자들과의 상호작용을 고려한 커뮤니케이션 시스템의 재정립이 필요해 보인다. 따라서 본 연구에서는 디자인씽킹 방법론을 적용하여 자율주행 차량 운전자의 페르소나를 설정하고 도로 주행 시 발생할 수 있는 구체적인 커뮤니케이션 상황을 제시 및 분류하고, 커뮤니케이션 주체에 따른 분류와 우선순위 설정을 거쳐 자율주행 차량이 외부로 보내는 커뮤니케이션 신호 체계를 도출하고자 한다. 또한, 기존의 시각적 정보 송출을 통한 커뮤니케이션의 문제점을 파악하고, 커뮤니케이션 의도 체계화, 신호색상 체계 확립을 통해 통합 커뮤니케이션 체계를 제안하고자 한다.
토픽 모델링과 회귀분석을 활용한 모바일 푸시 메시지의 OTT 서비스 콘텐츠 소비에 미치는 영향 분석
김상연(Sang-Yeon Kim),이희대(Hee-Dae Lee),박학용(Hak-Yong Park),황동욱(Dongwook Hwang) 한국디지털콘텐츠학회 2022 한국디지털콘텐츠학회논문지 Vol.23 No.8
This study analyzes texts used in push notifications from an OTT (Over-the-Top) service, “10,000 recipes,” to explore for topic categories and identify words that most/least attract viewers. In this study, representative latent topics and words of push notification messages provided by mobile apps were extracted using Latent Dirichlet Allocation(LDA)-based topic modeling. In addition, the Elastic Net Regression was used to identify the representative words from the push notification message that either positively or negatively affect the number of views of mobile OTT service content. Five topics emerged from the analysis: ‘seasonal food,’ ‘promotion,’ ‘preparing ingredients,’ ‘a la carte,’ and ‘easy meals.’ Use of promotion-oriented words tended to dampen viewer attraction.
사용자 행태 관찰에 기반한 복합 서비스 공간 품질 평가 척도 개발
반상우(Sangwoo Bahn),권상현(Sanghyun Kwon),송주봉(Joobong Song),황동욱(Dongwook Hwang),윤명환(Myung Hwan Yun) (사)한국CDE학회 2012 한국 CAD/CAM 학회 학술발표회 논문집 Vol.2012 No.2
In a service environment, the spatial layout is an important factor that has a great impact on customers’ behavioral characteristics including wayfinding and purchasing. Previous studies have shown a gap between marketing, focusing solely on profitability and satisfaction, and architecture, looking only into efficiency of pedestrian flow. To balance such disparity, this study suggests an integrated approach for assessing behavioral patterns in complex service environments. With the objective that complex service environments should aim to increase its profitability and efficiency while guaranteeing customer satisfaction, quantitative metrics was developed for evaluation. The metrics was defined to use data from behavior observation including path tracking, population counting, and gaze analysis, while previous studies have relied on abstract survey methods that were prone to sampling errors and loss of data. For validation of the metrics in a real world setting, a case study was conducted at 4 train stations in Korea. In the case study, experiments were conducted to gather the required data in all 4 train stations, while their physical layouts were also analyzed. With the results from the case study, comparative evaluation of the 4 train stations in terms of behavioral efficiency was possible, together with a discussion on the effect of their physical settings.
자율주행 차량 테마 공유 모바일 앱 서비스 제안 : 서비스 디자인 방법론을 중심으로
신수빈(Su-Bin Shin),이영현(Yeong-Hyeon Lee),최윤하(Yun-Ha Choi),황동욱(Dongwook Hwang) 한국디지털콘텐츠학회 2022 한국디지털콘텐츠학회논문지 Vol.23 No.10
In fully automated vehicles, drivers can engage in multiple non-driving related tasks. The autonomous vehicle will no longer have to be equipped with manual controls such as pedals and a steering wheel. The obvious interior changes in the autonomous vehicles will make drivers have more freedom for other non-driving related tasks. As the degree of automation increases, drivers will have some new mobility experience, and the appropriate service design need to be made accordingly. This study proposes a new in-vehicle service idea that will provide a positive mobility experience for passengers while self-driving. In this study, the double diamond design process model was employed to identify and analyze specific user needs and requirements, and, as a result, we suggest a conceptual design for theme-sharing mobile application for the autonomous vehicles.