• 한국수학교육학회지시리즈A:수학교육
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• 제58권3호
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• pp.443-458
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• 2019

본 연구는 예비 수학 교사들의 수학적 모델, 수학적 모델링 및 수학적 모델링의 교육적 활용에 대한 인식을 조사하고 그들 간의 관계에 대하여 탐색하였다. 210명의 예비 수학 교사들의 설문에 대한 응답을 구조방정식 모형을 이용하여 양적 분석하였다. 연구 결과에 따르면, 예비 수학 교사들의 수학적 모델 및 모델링에 대한 인식은 수학적 모델링의 교육적 활용에 대한 인식에 영향을 미치는 것으로 나타났으며, 이에 대한 연구 및 교육적 함의점을 논의하였다.

• 로봇학회논문지
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• 제3권2호
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• pp.112-116
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• 2008

This paper presents URS (Ubiquitous Robotic Space) Modeling and service technique for the robotic security service while bridging between virtual space and physical space. First, this paper introduces a concept of virtual URS and responsive virtual URS. Second, this paper addresses modeling of URS which covers modeling of indoor geometry and environment sensor. Third, this paper describes virtual URS services including interactive virual-physical bridging service.

• 한국수학교육학회지시리즈E:수학교육논문집
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• 제36권1호
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• pp.59-72
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• 2022

본 연구는 수학적 모델링 활동을 수행할 수 있는 과제 개발과 이를 기반한 수업 설계의 중요성을 생각하여, 수학적 모델링에 대한 예비교사들의 내재된 인식을 바탕으로 그들이 설계한 수학적 모델링 기반 수업의 특징을 파악하는 데 목적이 있다. 그 결과 예비교사들이 개발한 수학적 모델링 과제는 주로 개념 활용 학습을 목적으로, 실생활 맥락의 소재를 활용한 적정량의 정보를 제시한 다소 구조화된 형태로, 이해, 의미, 개념과 연결이 있는 절차적 과정이 필요한 인지적 요구수준으로 개발된 경향을 보였다. 이를 바탕으로 설계한 수업은 대부분이 준비 활동, 모델 도출 활동, 모델 탐험 활동만을 유도한 경향이 있었다. 본 결과를 토대로 예비교사 교육에서의 시사점을 논의하였다.

• 한국IT서비스학회지
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• 제10권2호
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• pp.309-327
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• 2011

Even though several methodologies for SOA(Service Oriented Architecture) have been proposed, in practical aspects most of them have some problems since they fail to propose specific policies in definition and identification of a service. This paper proposes a service modeling methodology. SOMO(Service Oriented Modeling using Ontology), which draws proper services in the process of defining and identifying services. SOMO defines a service ontology based on service definition and characteristics in SOA. The service drawing process consists of 3 steps : requirement analysis, service identification, and service definition. SOMO is expected to increase the degree of reuse and facilitates the definition and search of services by using service ontology. In addition, it clearly allows the definition and identification of services, satisfying the user requirements.

• 정보처리학회논문지:소프트웨어 및 데이터공학
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• 제2권4호
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• pp.227-238
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• 2013

업무에 초점을 둔 BPMN 모델은 서비스 지향 비즈니스 모델링에 한계점을 안고 있다. 이에, SOA 기반의 시스템 개발을 위해 서비스 수준에서 복잡한 응용 시스템을 디자인할 수 있는 서비스 지향의 비즈니스 모델링 기법이 요구된다. 본 논문은 BPMN 비즈니스 모델의 모듈성과 재사용성을 향상시키기 위해, 서비스 지향으로 BPMN 모델을 계층적으로 구축할 수 있는 메타모델과 이에 기반한 비즈니스 모델링 프로세스를 제시한다. 이를 위해, BPMN 모델의 모델링 요소들을 MDA와 MVC 패턴에 의해 계층화하고 서비스 지향의 모델링을 위한 확장된 XL-BPMN 메타모델을 정의한다. 이 메타모델의 모델링 요소를 이용해서, 모델링 단계에 의한 BPMN 서비스 모델링 프로세스를 정립한다. 이 기법은 온라인쇼핑몰시스템의 비즈니스 모델링에 사례로서 적용되고 평가되어진다. 잘 정의된 메타모델과 모델링 프로세스를 통해, 서비스 중심의 BPMN 비즈니스 모델을 생성할 수 있고, BPMN 모델의 모듈성을 증진시킬 수 있으며, 또한 독립적으로 재사용 가능한 모델의 수를 극대화할 수 있다.

• Journal of information and communication convergence engineering
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• 제2권1호
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• pp.40-45
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• 2004

This paper describes a modeling of service composition manager based on TINA (Telecommunication Information Networking Architecture). The Service composition function is mainly motivated by the desire to easily generate new service using existing services from retailers or $3^{rd}$-party service providers. The TINA-C specification for the service composition does not include the detailed composition procedure and its object models. In this paper, we propose a model of components for the service composition, which adapts a static composition feature in a single provider domain. To validate the proposed modeling, we implemented prototype service composition function, which combines two multimedia services; a VOD service and a VCS service. As a result, we obtain the specification of the detailed composition architecture between a retailer domain and a $3^{rd}$-party service provider domain.

• International Journal of Quality Innovation
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• 제8권1호
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• pp.76-86
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• 2007

This paper reports on a study investigating key attributes of service recovery strategies in internet shopping mall. In theses day, service recovery has received important attention in the service operation management literature. Service recovery involves those actions designed to resolve problems, alter negative attitudes of dissatisfied consumers and to ultimately retain these customers. The study examined that service recovery strategies (apology, compensation) impact on the customer satisfaction. And customer satisfaction impacts on customer loyalty with SEM (Structural Equation Modeling). This study can be used a strategic implication for internet shopping mall managers to develop successful service recovery strategies.

• Journal of Information Technology Applications and Management
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• 제31권1호
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• pp.163-175
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• 2024

This study conducts topic modeling analysis on four electric scooter sharing platforms: Alpaca, SingSing, Kickgoing, and Beam. Using user review data, the study aims to identify key topics and issues associated with each platform, as well as uncover common themes across platforms. The analysis reveals that users primarily express concerns and preferences related to application usability, service mobility, and parking/accessibility. Additionally, each platform exhibits unique characteristics and challenges. Alpaca users generally appreciate convenience and enjoyment but express concerns about safety and service areas. SingSing faces issues with application functionality, while Kickgoing users encounter connectivity problems and device usability issues. Beam receives overall positive feedback, but users express dissatisfaction with application usability and parking. Based on these findings, scooter sharing service providers should focus on enhancing application features, stability, and expanding service coverage to meet user expectations and improve customer satisfaction. Furthermore, highlighting platform-specific strengths and providing tailored services can enhance competitiveness and foster continuous service growth and development.

• 한국산업융합학회 논문집
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• 제27권2_2호
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• pp.343-356
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• 2024

Super app is an application that provides a variety of services in a unified interface within a single platform. With the acceleration of digital transformation, super apps are becoming more prevalent. This study aims to suggest service enhancement measures by analyzing the user review data before and after the transition to a super app. To this end, user review data from a payment-based super app(Shinhan Play) were collected and studied via topic modeling. Moreover, a matrix for assessing the importance and usefulness of topics is introduced, which relies on the eigenvector centrality of the inter-topic network obtained through topic modeling and the number of review recommendations. This allowed us to identify and categorize topics with high utility and impact. Prior to the transition, the factors contributing to user satisfaction included 'payment service,' 'additional service,' and 'improvement.' Following the transition, user satisfaction was associated with 'payment service' and 'integrated UX.' Conversely, dissatisfaction factors before the transition encompassed issues related to 'signup/installation,' 'payment error/response,' 'security authentication,' and 'security error.' Following the transition, user dissatisfaction arose from concerns regarding 'update/error response' and 'UX/UI.' The research results are expected to be used as a basis for establishing strategies to strengthen service competitiveness by making super app services more user-oriented.

• Journal of Communications and Networks
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• 제3권4호
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• pp.297-306
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• 2001

In the last couple of years service management has gained more and more momentum in the research community. Nowadays, as complexity of IT-services is increasing, these services are usually composed of interdependent, layered services hosted by various providers. Therefore, a strong cooperation of providers involved in service provisioning is needed, especially regarding their management processes and systems. One important step is to establish a common understanding about service-related terms in order to be able to specify service functionality and the resulting management tasks. Additionally, means to analyze and identify the necessary actors and the corresponding inter- and intra-organizational relationships are needed. This paper presents an extended version of the MNM service model which provides a generic model defining commonly needed service-related terms, concepts and structuring rules in a general and unambiguous way. Furthermore, we demonstrate the application of the MNM service model by modeling a riser help desk service based on a concrete scenario. The experience gained from modeling is used to discuss the benefits of service modeling in general.