• 대한건축학회논문집:계획계
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• 제35권1호
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• pp.37-46
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• 2019

The energy of the building is influenced by the user 's activity due to the population, society, and economic characteristics of the building user. In order to obtain accurate energy information, the difference in the amount of energy consumption by the activities and characteristics of building users should be identified. The purpose of the study is to identify the difference in the amount of energy consumption by the user's activities in the same building, and to analyse the relationship between user's activities and demographic, social and economic characteristics. For research, energy simulation is performed based on actual user activity schedule. The results of the simulation were clustered by using K-Means clustering, a machine learning technique. As a result, four types of users were derived based on the amount of energy consumption. The more energy used in a cluster, the lower the user's income level and older. The longer a user's indoor activity times, the higher the energy use, and these activities relate to the user's characteristics. There is more than twice the difference between the group that uses the least energy consumption and the group that uses the most energy consumption.

• 인간식물환경학회지
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• 제22권5호
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• pp.525-539
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• 2019

Much research has been conducted on user behavior by taking surveys and interviews to plan the green space effectively. However, there is a limitation in understanding detailed user characteristics such as personalities and values. This study applied the Persona-based Scenario Method (PSM) to Hongneung Experimental Forest to understand the detailed needs and behaviors of the users in the forest recreation area. The PSM is a user experience modeling technique, which tries to understand the users by describing the type of users as real people. This study 1) extracts the factors of visitor recreation activities in Hongneung Experimental Forest based on the results of the survey, 2) develops user personas based on the results of survey and comes up with activity factors, and 3) designs user scenarios. As a result of applying the PSM, 64 factors of visitor activities were derived from the observation survey in 14 sites of Hongneung Experimental Forest and 25 key factors of visitor activities were chosen through observer's brainstorming. Second, three types of personas were developed considering the key factors and the results of user characteristics with quantitative and qualitative analysis. Lastly, context scenarios were designed by applying the key factors of visitor recreation activities to the persona model. We identified the design problems of the space and design requirements through the scenarios. This study has significance in that it takes an approach from the user perspective and was applied to the forest recreation area, which was mainly used in product design. The developed personas could be used for deriving design elements and setting the direction for planning considering detailed needs, behaviors and characteristics of users.

• 정보과학회 논문지
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• 제43권1호
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• pp.96-105
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• 2016

최근 소셜 네트워크 서비스는 단순히 사용자들의 인맥 관계 형성뿐만 아니라 다양한 형태의 정보를 생성하고 공유하는 개방형 플랫폼으로 변화하고 있다. 기존 사용자 평판 관리 기법은 사용자 프로필, 명시적 관계, 명시적 평가를 기반으로 사용자 신뢰성을 판별하기 때문에 명시적 평가가 잘 이루어지지 않는 소셜 미디어에서 사용자 신뢰성을 판별하기에는 부적합하다. 본 논문에서는 소셜 미디어에 대한 소셜 행위들을 분석하고 명시적인 평가 뿐만 아니라 암시적 평가를 고려한 사용자 평판 관리 기법을 제안한다. 제안하는 기법은 소셜 행위로부터 긍정적 암시적 평가와 부정적 암시적 평가를 도출한다. 또한, 사용자의 전문성을 고려하기 위해 분야별로 사용자 평판 정보를 생성하고 사용자의 영향력을 판단하기 위해 평가에 참여한 사용자들의 수를 반영한다. 이를 통해 명시적 평가가 없는 사용자도 평판 정보를 생성할 수 있도록 하고 소셜 미디어에 더 적합한 사용자 평판 정보를 생성한다.

• 한국IT서비스학회:학술대회논문집
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• 한국IT서비스학회 2003년도 추계학술대회
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• pp.233-240
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• 2003

To develop high-quality software systems satisfying the customer's needs, user-centered design (UCD) process has been emphasized in the area of human-computer interaction. And component-based development (CBD) has been extensively studied to realize a systematic software reuse, thereby reducing the time-to-market and the development cost. Balanced integration of user-centered design process and CBD process will be a promising way for successful software construction, which effectively achieves three goals: the quality of software, the cost of software development, and the time-to-market. However, traditional CBD methodology seems to lack the concept of user-centered design process and the relevant methods. This paper proposes a way of incorporating user-centered design process into a CBD methodology. Firstly, this paper gives the brief introduction of UCD. Secondly, we explain typical UCD activities and methods along the phase of systems development lifecycle and propose the use of usability maturity model (UMM) for integrating UCD activities and methods with those of CBD methodology. Finally, as a case study, we describe the results of comparing the UCD activities to the activities of MaRMI-III, which has been developed as a CBD methodology at ETRI.

• 대한산업공학회지
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• 제37권2호
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• pp.105-117
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• 2011

This study describes behavioral characteristics of Korean population over twenty years old in a variety of activities of daily living by analyzing the raw data of the time use survey provided by Statistics Korea (KOSTAT). Seven activities and forty four sub-activities of daily living were selected for analysis : personal care, employment, household care, family care, voluntary work and community participation, social life, recreation and leisure, and travel. In order to quantitatively understand how Korean adults spend their time for a day and how their lifestyle changes over time, we collected the time recorded by 3,673 respondents in three surveys over the past ten years (in 1999, 2004, and 2009). Then, we performed analysis of variance to compare the behavioral characteristics by user age and gender based on the mean time of each activity. The differences in behavior among user groups and over time could be used to design ergonomic products and services based on user experience, especially for universal design of housing and transportation facilities.

• International journal of advanced smart convergence
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• 제9권4호
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• pp.198-202
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• 2020

User review sites are spaces where users can freely post and share their opinions, which are trusted by many people and directly influence sales. In addition, they overcome the limitations arising from existing requirements collection and are able to gather the needs of large numbers of different people at a low cost. Therefore, such sites are attracting attention as new spaces for understanding user needs. In a previous study, a user review analysis was attempted using 5W and 1H, and we inferred that a sentence containing "when" has special information based on the user experience. In addition, the requirements of the derivative activities in a user review can identify more user needs than the general requirements of derivative activities. In this paper, we propose a systematic method of deriving "when" sentences contain meaningful information from user reviews and converting them into use cases, which is one of the requirements of a specification method. This method converts unstructured data into structured data such that it can be included as the user requirements during software development from user comments expressed in natural language. This method will reduce project failures and increase the likelihood of success by enabling an efficient collection and analysis of user needs from valuable user reviews.

• 한국정보시스템학회지:정보시스템연구
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• 제23권1호
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• pp.93-109
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• 2014

This study aims to develop a rich understanding of user goals in user-empowering information technologies which have been dominating part in the information systems environment. A particular focus is on users' goals in a social network site (SNS) which is a typical example of user-empowering technologies. Users conduct various activities in order to achieve diverse goals in SNS. Thus, investigating what goals users pursue in SNS will give insights into understanding the users. We employed the laddering interview technique and means-end chain approach. Interviews of 50 Facebook users were analyzed to produce a hierarchical goal map showing users' goal structure. The map contains 18 goals, including self-reflection, psychological stability, belongingness, improving productivity, and amusement as ultimate goals in SNS. In the map, there are varied routes from activities to ultimate goals in SNS; that is, a complex assembly consisting of activities and goals. The findings call the information systems research community to have more interests in diverse goals and values users seek with technologies.

• International journal of advanced smart convergence
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• 제9권3호
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• pp.227-231
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• 2020

Recently, the importance of user experience (UX) has been rapidly increasing. Its utilization is emphasized for development of systems, products, and services. User experience is widely used across industries including services, products, processes, society, and culture. Therefore, if it is unsatisfactory, it is likely to have a direct negative impact on the corresponding system, product, or service. The failure to analyze user experience causes significant damage to the project, which may lead to its failure or redevelopment; it is hence necessary to prioritize the verification of UX in the earliest stages of development. The requirements development stage, which is a preceding stage, is an appropriate stage for the verification of user experience because the identification of user needs is completed and prototypes can be implemented. In this paper, we proposed a systematic requirements development stage; it adds user experience verification activities to the requirements development stage, using the Honeycomb model, which is a widely used tool for verifying the overall UX. User experience verification was added to the existing requirements development activities, which consisted of three steps: model definition and requirements placement, discussions between external and internal stakeholders, and review by internal stakeholders. By easily validating the user experience through this systematic requirements development stage, we expect to minimize the damage to the project due to the failure of the user experience analysis and increase the possibility of success.

• 한국콘텐츠학회논문지
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• 제20권2호
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• pp.114-126
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• 2020

정보통신기술의 발달로 이용자들은 모바일을 통해 시간과 공간의 제약 없이 동영상 콘텐츠를 즐길 수 있게 되었다. 본 연구에서는 이용과 충족 이론을 활용하여 유튜브 이용자들의 이용 동기와 친밀도가 이용자 활동에 미치는 영향을 살펴보고자 한다. 특히 본 연구는 기존 연구들과 달리 이용자 활동을 시청 전과 동안 활동으로 나누어 살펴보았다. 연구결과 시청 전 활동인 구독채널 수에 영향을 미치는 주요 동기는 유용한 즐거움과 사회적 상호작용인 것에 비해, 시청 동안 활동에 영향을 미치는 주요 동기는 유용한 즐거움, 사회적 상호작용, 인간관계 연결, 유용한 정보탐색, 공동시청과 같이 더욱 다양하게 나타났다. 또한 유튜브에 대한 친밀감도 시청행동에 유의미한 영향을 미치는 것으로 나타났다. 결론에서 결과에 대한 이론적 및 실무적 함의가 논의되었다.

• 한국시뮬레이션학회논문지
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• 제19권1호
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• pp.83-90
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• 2010

본 논문에서는 콘텐츠 명성 및 사용자 명성 평가를 통해 신뢰성 높은 UCC 검색을 가능하게 하는 방법에 대해 기술한다. 기존 정보검색과 달리 UCC에서는 얻을 수 있는 텍스트 정보가 한정적이기 때문에 텍스트 외적인 정보의 사용이 필요하다. 콘텐츠 명성과 사용자 명성은 비텍스트 정보를 이용하여 평가되는데, 평가된 명성을 자질로 사용하여 UCC 검색을 수행하면 기존 검색 방법보다 향상된 검색 성능을 기대할 수 있다. 콘텐츠 명성은 영상 자체 정보와 영상과 관련된 소셜활동 정보로부터 콘텐츠의 명성, 즉 가치를 평가한다. 또한 사용자 명성은 콘텐츠와 사용자, 사용자와 사용자 사이의 소셜활동 하나하나에 주목하여 네트워크를 구축하여 사용자의 명성을 평가한다. 각각의 명성을 평가하여 UCC 검색에 사용하는 두 개의 시스템을 구현하고, 유튜브로부터 수집한 UCC와 사용자 정보를 이용하여 두 시스템의 비교 실험을 수행하였다. 실험 결과, 콘텐츠 명성을 활용한 시스템에서 조금 더 높은 사용자의 동의를 이끌어 낼 수 있었으며, 이 결과는 향후 UCC 검색에 활용할 수 있을 것이라 기대된다.