• KSII Transactions on Internet and Information Systems (TIIS)
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• 제6권3호
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• pp.886-905
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• 2012

Set-top Box (STB) has evolved from being a device just sitting on top of a TV shelf to a device providing a gateway to the Internet for a home network, receiving services from multiple content providers, and enabling and ensuring Quality of Service (QoS) for the streaming media. IP Multimedia Subsystem (IMS), with its promise to provide a converged access network for multimedia service delivery (such as Triple play & Quadruple play services), has to guarantee QoS support. To enable QoS in IMS-based networks, we have designed a set-top box which provides feedback to the service provider to ensure end-to-end QoS. Our set-top box is designed to provide virtual platforms such that it can support multiple service providers. Each service provider is able to manage its own multimedia streams and ensures the desired network performance for each flow. The set-top box also works as a Home Gateway and provides end-to-end QoS support to the client nodes.

• The Journal of Asian Finance, Economics and Business
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• 제8권5호
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• pp.241-251
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• 2021

This research explores and develops digital transformation factors influencing the logistics service-provider sector in Thailand while also examining the impact sustainability factors associated with digital transformation. Divided into two parts, Part one of the theoretical study framework covers 21 factors relating to logistics, including drivers, objectives, implications, and success factors. The second part concerns 23 factors associated with logistics sustainability, including economic, environmental, and social aspects. This quantitative empirical research was conducted using an online questionnaire instrument, and a structural equation modeling (SEM) technique was used to test the proposed model. The findings from 545 samples collected between August and November 2020 from respondents working in logistics service-provider companies in Thailand show that digital transformation drivers and objectives seem likely to impact success factors and implications in digital transformation positively. Digital transformation success factors also positively impact logistics sustainability. In comparison, logistics sustainability has a significant impact on Thailand's logistics service-provider sector's economic, environmental, and social aspects. Lastly, this research highlights the significance of digital transformation success factors and extends the current knowledge about digital transformation factors and their potential impact on logistics sustainability.

• 산업경영시스템학회지
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• 제42권3호
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• pp.109-115
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• 2019

Most demand forecasting studies for telecommunication services have focused on estimating market size at the introductory stage of new products or services, or on suggesting improvement methods of forecasting models. Although such studies forecast business growth and market sizes through demand forecasting for new technologies and overall demands in markets, they have not suggested more specific information like relative market share, customers' preferences on technologies or service, and potential sales power. This study focuses on the telecommunication service industry and explores ways to calculate the relative market shares between competitors, considering competitive situations at the introductory stage of a new mobile telecommunication service provider. To reflect the competitive characteristics of the telecommunication markets, suggested is an extended conjoint analysis using service coverage and service switching rates as modification variables. This study is considered to be able to provide strategic implications to businesses offering existing service and ones planning to launch new services. The result of analysis shows that the new service provider has the greatest market share at the competitive situation where the new service covers the whole country, offers about 50% of existing service price, and allows all cellphones except a few while the existing service carrier maintains its price and service and has no response to the new service introduction. This means that the market share of the new service provider soars when it is highly competitive with fast network speed and low price.

• International Journal of Computer Science & Network Security
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• 제23권5호
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• pp.89-94
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• 2023

Cloud-based technology is used in different organizations around the world for various purposes. Using this technology, the service providers provide the service mainly SaaS, PaaS and while the cloud service consumer consumes the services by paying for the service they used or accessed by the principle of "pay per use". The customer of the services can get any services being at different places or locations using different machines or electronic devices. Under the conditions of being well organized and having all necessary infrastructures, the services can be accessed suitably. The identified problem in this study is that cloud providers control and monitor the system or tools by ignoring the calculation and consideration of various faults made from the cloud provider side during service delivery. There are currently problems with ignoring the consumer or client during the monitoring and mentoring system for cloud services consumed at the customer or client level by SLA provisions. The new framework was developed to address the above-mentioned problems. The framework was developed as a unified modeling language. Eight basic components are used to develop the framework. For this research, the researcher developed a prototype by using a selected cloud tool to simulate and java programming language to write a code as well as MySQL to store data during SLA. The researcher used different criteria to validate the developed framework i.e. to validate SLA that is concerned with a cloud service provider, validate what happened when the request from the client-side is less than what is specified in SLA and above what is specified in SLA as well as implementing the monitoring mechanism using the developed Monitoring component. The researcher observed that with the 1st and 3rd criteria the service level agreement was violated and this indicated that if the Service level agreement is monitored or managed only by cloud service prover, there is a violation of LSA. Therefore, the researcher recommended that the service level agreement be managed by both cloud service providers and service consumers in the cloud computing environment.

• 한국디지털정책학회:학술대회논문집
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• 한국디지털정책학회 2004년도 International Conference on Digital Policy & Management
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• pp.247-256
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• 2004

The modern government's role: As an enterprise (To be efficient and effective.); as a service and information provider (government processes that are unique to government). The modern government's role demand interoperation. The Web services architecture is based upon the interactions among three components: Service provider, service broker and service requestor. Service broker is sometimes referred to as service registry. The interactions involve publish, find and bind operations. The paper introduces the concept of web services as a way to realize interoperation between distributed applications. The paper addresses interoperation between e-government and citizen. The motivation of this work was to determine the potentials of the Web services technology for an interoperability infrastructure for e-government. In many countries, the traditional governments have many problems that stem from both insufficient and improper use of ICT. "Insufficient use" refers to the traditional means such as manual archiving systems. "Improper use", on the other hand, refers to the lack of an interoperability infrastructure within and among the government agencies. In this work.

• Journal of Information Technology Applications and Management
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• 제15권1호
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• pp.21-41
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• 2008

The development of POS (Point of Sales) systems for small retailers according to their needs is considered to be important to improve their competitive advantages. However, their financial statuses hinder the adoption of the tailored POS systems. Viewing ASP as a viable solution to provide tailored POS systems for the small retailers, this study develops ASP POS service models for the small retailers. First, this study elicits ASP POS requirements of the small retailers in the following areas: merchandising, pricing, store design and display, customer service, advertising and promotion and personal selling. Then, the requirements are clustered and the clusters are analyzed based on the characteristics of the retailers. Then, ASP service models are proposed according to the needs and profiles of the retailers.

• 한국전자거래학회지
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• 제14권4호
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• pp.35-45
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• 2009

국내 ASP(Application Service Provider) 산업은 지난 10년 동안 정부 주도하에 중소기업을 대상으로 급 성장하였다. 그러나 최근 ASP 서비스 업체의 지속적 적자 및 이용업체의 가입 정체 등으로 ASP 산업이 침체되고 있다. 따라서 본 논문에서는 ASP 시장 규모 및 시장성장률의 BCG 매트릭스를 이용하여 핵심 서비스 군을 도출하고 이 서비스 군을 대상으로 집중 인터뷰(Focused Group Interview)를 통하여 핵심 성공 요소를 파악하여 ASP 산업의 활성화 방향과 차세대 ASP로 지칭되는 SaaS(Software as a Service)로의 발전방향을 모색하고자 한다.

• 한국병원경영학회지
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• 제12권2호
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• pp.69-92
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• 2007

This research has classified waiting times into the three different ones according to service offering process and investigated the antecedents and consequences of types of waiting times. A service provider's concern and customer involvement were modeled as antecedent variables and negative emotion and service value as dependent variables. The empirical results of the study are as follows. A service provider's concern had significant influences on all the three types of waiting times whereas customer involvement was found to affect preprocess-waiting and postprocess-waiting times. Preprocess-waiting time had a significant impact on both negative emotion and service value and inprocess-waiting time only affects negative emotion. However, postprocess-waiting time had influenced none of the variables. The findings illustrate an important role of concern and involvement regarding to a customer's perceived waiting time and relative importance of waiting types on negative emotion and service value. A summary of the results are reported and managerial implications are discussed.

• 산업경영시스템학회지
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• 제38권2호
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• pp.91-100
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• 2015

In this study, we propose an efficient two-phase heuristic policy, called an acceptance tolerance control policy, for Infrastructure as a Service (IaaS) cloud services that considers both the service provider and customer in terms of profit and satisfaction, respectively. Each time an IaaS cloud service is requested, this policy determines whether the service is accepted or rejected by calculating the potential for realizing the two performance objectives. Moreover, it uses acceptance tolerance to identify the possibility for error with the chosen decision while compensating for both future fluctuations in customer demand and error possibilities based on past decisions. We conducted a numerical experiment to verify the performance of the proposed policy using several actual IaaS cloud service specifications and comparing it with other heuristics.

• 한국컴퓨터정보학회논문지
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• 제9권2호
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• pp.69-79
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• 2004

정보체계를 아웃소싱 하는데 있어서 서비스 의뢰자와 제공자 모두가 이해하고 동의할 수 있는 합리적인 서비스수준측정 메트릭(SLM, Service Level Metric)이 있어야 하며 이를 기초로 서비스수준목표(SLA, Service Level Objective)가 세워지고 서비스수준협약(SLA, Service Level Agreement)이 작성되어야 한다. SLM에 대한 연구가 필요한 이유로는 첫째, 아웃소싱 당사자들간의 불만족에도 불구하고 컴퓨터가 도입된 초창기의 메트릭들이 아직도 사용되고 있어서 메트릭 자체에 대한 검토가 필요하다 둘째, 시스템 구성요소의 가용성이나 사용을 등을 표현하는 SLM은 있으나 사용자(end-user)의 만족도를 표현하는 SLM이 없다. 셋째, 아웃소싱 계약이 대개 서비스제공자가 주도하므로 SLO 및 SLM이 제공자에게 유리하게 작성되는 경우가 많아서 의뢰자도 인정할 수 있는 메트릭이 필요하다. 아웃소싱이 성공하기 위해서는 서비스 의뢰자와 제공자가 자신의 역할을 잘 인식해야 하고 양자간의 관계가 정립되어 있어야 하며 서로에게 기대하는 것이 무엇인지를 명확히 해야 한다. 또한 이러한 상호간의 기대치는 정량적인 수치인 메트릭으로 표현되어야 한다.