¡@¡@Due to wireless communication technologies, positioning technologies, and mobile computing develop quickly, mobile services are becoming practical and important on big spatiotemporal databases management. Mobile service users move only inside a spatial space, e:g: a country. They often issue the K Nearest Neighbor (kNN) query to obtain data objects reachable through the spatial database. The challenge problem of mobile services is how to efficiently answer the data objects which users interest to the corresponding mobile users. One type of kNN query problems is the order-sensitive moving kNN (order-sensitive MkNN) query problem. In the order-sensitive MkNN query problem, the query point is dynamic and unpredictable, the kNN answers should be responded in real time and sorted by the distance in the ascending order. Therefore, how to respond the kNN answers effectively, incrementally and correctly is an important issue. Nutanong et al: have proposed the V*-kNN algorithm to process the order-sensitive MkNN query. The V*-kNN algorithm uses their the V*-diagram algorithm to generate the safe region. It also uses the Incremental Rank Updates algorithm (IRU) to handle the events while the query point passing the bisectors or the boundary of the safe region. However, the V*-kNN algorithm uses the BF-kNN algorithm to retrieve NNs, which is non-incremental. This makes the search time increase while the density of the object increases. Moreover, they do not consider the situation that there are multiple objects at the same order, and the situation that there are multiple events happen in a single step. These situations may cause that the kNN answers are incorrect. Therefore, in this thesis, we propose the Hilbert curve-based kNN algorithm (HC-kNN) algorithm to process the ordersensitive MkNN query. The HC-kNN algorithm can handle the situation that there are multiple events happen in a single step. We also propose new data structure of the kNN answers. Next, we propose the Intersection of Perpendicular Bisectors algorithm (IPB) in order to handle order update events of the kNN answers. The IPB algorithm handles the situation which there are multiple objects at the same order. Finally, based on the Hilbert curve index, we propose the ONHC-kNN algorithm to get NNs incrementally and to generate the safe region. The safe region will not be affected while the density of the object increases. The safe region of our algorithm is larger than that of the V*-kNN algorithm. From our simulation result, we show that the HC-kNN algorithm provides better performance than the V*-kNN algorithm.

Abstract The era of mobile communications and mobile services has begun. The ongoing mobile revolution has dramatically and fundamentally changed our daily lifestyles, and it will continue to do so in a foreseeable future. For the next generation, mobile service end users have more demands for such services. This thesis examines the challenging user perspectives in designing and developing high value added mobile services. The aim of this research is to develop reference models and elicit user requirements for 3G and beyond mobile services in order to improve the quality of mobile services. This thesis first examines the existing architectures and models for high value added mobile services, followed by the contributions of the thesis. In this thesis, a Cyberworld model, which is a contribution to the WWRF reference modeling initiative and a specification of the WSI reference model, was developed and it serves as a basis for 3G and beyond mobile services design and development. A series of definitions of the Cyberworld model and a roadmap of the enabling technologies were also built up. The emphasis of this part is on how to describe and model user participation in mobile services. For this purpose, a model of the communication element to represent the components of the wireless world was created. Both static and dynamic reference modeling steps were established to better describe and understand user participation in mobile services. The validation was achieved through the CyPhone navigation mobile service. In order to enhance mobile service mobility, personalisation, and security, an ontology based model was developed to extend the Cyberworld model functionalities. The innovative ontology based mobile system will greatly increase service mobility, personalisation and security, thus improving the quality of mobile services. The ontology based model was illustrated and validated using a healthcare mobile service. A Quality Function Deployment (QFD) approach was adopted in this research in order to elicit, weigh and prioritise actual user requirements and link them to technical design requirements of mobile services. Traditionally QFD is employed in manufacturing industry. This approach is now extended to the mobile service industry for the first time. In this thesis, a detailed step by step QFD approach was proposed for designing high value added mobile services. As a result, the developed mobile services will better meet users' wants and needs which also means that the quality of mobile services will be significantly improved. The QFD approach was validated through a mobile e-learning service and another dedicated healthcare service for senior citizens. Through development of reference models and examination of user requirements for 3G and beyond mobile services from user perspectives, this thesis contributes to the design and development of high value added mobile services.

Abstract The present study develops our understanding of consumers’ emerging interest in novel mobile services by adopting two approaches. First, structural equation modeling is used as a statistical tool to create a context-sensitive model for consumer acceptance of novel mobile services. Secondly, the study creates an interpretive framework of contemporary consumer culture to help understand how consumers construct their emerging practices in novel mobile services based on their actual experiences. The empirical data was gathered at a Housing Fair, where a Mobile Fair Diary was piloted, and it is that Mobile Fair Diary application that provides the selected tool of the empirical study. Therefore, real user experience played a significant role in how our consumers perceived mobile services and the way the cultural discourse was produced. The model developed indicates that performance expectancy, effort expectancy, anxiety, trust and attitude have an impact on consumers’ intention to use mobile services. Furthermore, the various representations related to mobile services were identified in order to understand emerging practices. Consumers are likely to change the routines involved in the management of information if useful alternatives are available to them. An ongoing insecurity emerging from technology change is often a characteristic of the contemporary life of consumers. On the one hand, consumers are dependent on technology, but on the other hand, do not fully understand it. Therefore, consumers have to be active to keep up with the continuous changes going on around them. Furthermore, consumers need support from the service provider and their social context. Consumers should also believe in their own capability to learn and their power to make choices, which will result in changes to their practices.

The aim of this thesis is to propose a new mobile service. At the beginning of this work are listed technologies, which are used in mobile communications. Furthermore, it defines the concept of mobile service, indicating a few examples. The practical part describes a custom design services and its variants. The new service is finally described as a possible new type of business.

Made available in DSpace on 2016-12-01T19:11:35Z (GMT). No. of bitstreams: 1 122703.pdf: 2436085 bytes, checksum: 2d0b7934770fd02db88671666032c2bc (MD5) Previous issue date: 2015-07-02 / Coordenação de Aperfeiçoamento de Pessoal de Nível Superior / M-commerce trata-se do serviço móvel de comércio eletrônico. Desde seu surgimento, têm-se pesquisado a influência de conceitos para compreender o uso do serviço. Entretanto, observou-se que boa parte dos estudos analisam as mesmas variáveis, o que limita o entendimento sobre o campo. Considerando isso, esta dissertação tem como objetivo a identificação dos fatores críticos relacionados ao uso do mcommerce. Para tal, criou-se uma taxonomia dos fatores críticos, transferência de conceitos do e-commerce para o mcommerce e gerou-se um modelo de influências ao uso do mcommerce. A base teórica utiliza o Modelo de Aceitação da Tecnologia (TAM) e a Teoria do Comportamento Planejado (TPB). Quanto à abordagem metodológica, trata-se de um estudo qualitativo, que utilizou como estratégia a pesquisa documental. Realizou-se revisão de literatura sobre os temas ecommerce e m-commerce, buscando identificar fatores que influenciam o uso de ambos os serviços. Na análise dos dados criou-se uma taxonomia dos fatores críticos identificados na revisão da literatura, transferiu-se conceitos do e-commerce para o m-commerce, considerando as características específicas do serviço móvel, e gerou-se um modelo de influências ao uso do m-commerce. Os resultados encontrados indicam que existem diversas lacunas de pesquisa no m-commerce e que grande parte dos conceitos pesquisados no e-commerce ainda não foram analisados no caso do serviço móvel. Identificou-se também que a maioria dos conceitos pesquisados no ecommerce é compatível às características do m-commerce, o que permitiu sua transferência. No entanto, em alguns casos, fez-se necessária a adaptação da nomenclatura para adequação do termo ao serviço móvel. Verificou-se ainda que, em alguns aspectos, as pesquisas sobre o serviço móvel avançaram mais do que as pesquisas sobre o comércio eletrônico tradicional.

行動科技越來越廣泛地應用在我們的日常生活。不僅使用於溝通方面，對企業活動也有了很大的改變。隨著無線傳輸技術的進步，商業資訊可以立即傳遞到每一個人的手持設備，而不受時間地點的限制。許多公司試著採用這種方便的技術，作為他們新的服務策略。本篇基於Star Model架構的背景，研究公司採用行動服務為一種新的策略時，所應該具備的能力。根據個案研究的結果，我們發現了展覽組織者在採用行動服務應注重的一些關鍵因素：一個良好的IT環境、全組織學習、對市場的快速反應、靈活的結構、彈性流程、良好的訓練體系，以及一個適當的獎勵制度。 / The mobile technology is applied in more and more aspects in our daily life. It is used not only in communication, but also business activities. With the great progress of wireless transmission, commercial information can be delivered to one’s handheld devices immediately, no matter where he or she is. Many companies attempt to introduce such convenient technology as their new strategy to perform their real-time services. Individual-oriented information delivery is also a beneficial function for these companies. This research examined the star-model framework in the context of mobile service as a new strategy. With a case study, we found some critical factors that an exhibition organizer should focus on when implementing a mobile IT project: a good IT environment, company-wide learning, quick response, flexible structure, elastic processes, a good training system, and an appropriate performance-based reward system.

行動服務分類與系統開發是一個理論上與實務上重要的議題，其中以應用在旅遊業的行動旅遊服務備受關注。本研究試圖提出以多觀點的角度來找出、分類、評估與開發具有價值的行動旅遊服務。也就是說，本研究試圖提出有價值的行動旅遊服務與服務分類，透過多觀點的角度來評估研究所提出的行動旅遊服務與服務分類，並提出系統開發架構與方法，透過雛型系統建置來驗證系統開發方法的可行性與雛型系統的效能。 本研究範圍主要在企業對客戶的行動旅遊服務，主要研究貢獻在於服務分類架構與系統開發架構。本研究試圖透過服務分類架構將企業對客戶的行動旅遊服務彙整出企業對客戶的行動旅遊服務分類，並透過旅客、電信業者與旅遊業等多觀點來評估本研究所提出的企業對客戶的行動旅遊服務與服務分類。本研究並根據系統開發架構來建置與評估企業對客戶的行動旅遊服務的雛型系統，來驗證本研究所提出的行動旅遊服務的可行性。為了驗證本研究所提出的服務分類架構的可應用性，本研究試圖將此服務分類架構延伸應用到企業內部的行動旅遊服務，並透過管理階層與員工雙方的觀點整理出企業內部的行動旅遊服務與服務分類。 本研究的研究方法主要為設計科學。透過文獻探討、半結構化的群組訪談與問卷調查來找出、分類與評估企業對客戶的行動旅遊服務與服務分類。透過物件導向系統發展方法與評估問卷來建置並評估企業對客戶的行動旅遊服務的雛型系統。做為一個延伸研究，企業內部的行動旅遊服務與服務分類所採用的研究方法包括文獻探討、半結構化的焦點團體討論與半結構化的田野訪談。 在企業對客戶的行動旅遊服務分類研究結果發現：(1) 在企業對客戶的行動旅遊服務分類中，行動搜尋與通知服務、行動推薦服務、行動交易與付款服務為三項旅客認為最有用，且電信業與旅遊業都認為最重要、最可行、最符合成本效益的服務；(2) 相較於旅遊業，電信業對於企業對客戶的行動旅遊服務態度上較積極；(3) 旅遊業與電信業者對於所提出的企業對客戶的行動旅遊服務的評估，在評分排序上是相同的。 本研究亦建置行動推薦服務的雛型系統，來說明系統發展架構與設計方法。行動推薦服務會依據旅客現在的位置與時間，以及個人偏好與需求，來進行個人化的地點相關的推薦，包括景點推薦、飯店推薦、餐廳推薦與旅遊行程推薦等。系統滿意度調查顯示該雛型系統具有高度系統滿意度。 就企業內部的行動旅遊服務分類的研究結果顯示，不同管理階層對於企業內部的行動旅遊服務有不同的需求，而不同的企業內部的行動旅遊服務在技術上的難易程度也不同。透過企業內部的行動旅遊服務分類架構，很容易瞭解到該企業內部的行動旅遊服務在技術上的複雜度與管理上的需求程度。這樣的服務分類架構對於規劃與開發企業內部的行動旅遊服務，提供一個參考基準與指引。此外，本研究結果指出，行動旅遊品質控管服務對管理階層來說，是很重要、可行與符合成本效益的服務。而行動銷售支援服務對管理階層來說，是一個可行有效但不是很重要的服務。最後，本研究建議後續研究將本研究所提的服務分類架構與系統開發架構應用到其他的行動服務領域，以驗證本研究所提出的服務分類架構與系統開發架構的可應用性。 / The service classification and system development of mobile services is an important issue both in research and in practice, and research attention is called to the mobile services for the tourism industry. This study tries to identify, classify, evaluate, and develop value-added mobile tourism services with multiple perspectives. That is, user groups with different perspectives are asked to evaluate the proposed value-added mobile tourism services as well as a mobile tourism service classification framework. Moreover, this study also proposes the system development framework and processes, and the prototype system is built and evaluated to validate the feasibility of the proposed system development framework as well as the effectiveness of the prototype system. The research scope is focused on the B2C mobile tourism services, and the main contribution of this study is the proposed service classification framework and the system development framework. This study tries to identify and classify B2C mobile tourism services based on the proposed service classification framework and processes. Moreover, tourists, 3G operators and the tourism industry are asked to evaluate the proposed B2C mobile tourism services as well as the service classification. Based on the proposed system development framework and processes, this study also builds and evaluates the prototype system to validate the feasibility of the proposed B2C mobile tourism services. To validate the appliance of our service classification framework, an extension research to the B2E mobile tourism services is also conducted. Management perspectives including managers and employees are taken into accounts to summarize the B2E mobile tourism services and the service classification framework. The research methodology used in this study is the design science research methodology. With literature reviews, semi-structured group interviews, and surveys to identify, classify, and evaluate B2C mobile tourism services as well as the service classification. The prototype system of the B2C mobile tourism services is built through object-oriented system analysis and design, and the survey questionnaire is used for the system evaluation of the prototype system. As an extension study, the B2E mobile tourism service classification research is built with literature reviews, semi-structured focus group discussions and semi-structured field interviews. The B2C mobile tourism service classification research results are as follows. (1) The mobile search & notification services, the mobile recommendation services, and the mobile transaction & payment services are top three useful B2C mobile tourism services valued by tourists, and these three B2C mobile tourism services are top three most important, feasible and cost-benefit effective services from the 3G operators’ and travel agencies’ perspectives. (2) The 3G operators hold more positive attitudes towards the B2C mobile tourism services than the tourism industry does. (3) Tourism industry sets the same priority list toward the proposed B2C mobile tourism services as the 3G operators do. In this study, an application prototype of mobile recommendation services is also implemented to illustrate the development framework and design methods. The mobile recommendation services provide personalized and location-based recommendations regarding sightseeing spots, hotels, restaurants, and packaged tour plans based on tourists’ current location and time, as well as personal preferences and needs. Results from the system evaluation indicate high system satisfaction toward the prototype system. Based on the research results of the B2E mobile tourism service classification, different management levels have different needs for B2E mobile tourism services, and different B2E mobile tourism services have different technology complexities. Through this B2E mobile tourism service classification framework, it is easy to understand the technology complexities of the B2E mobile tourism services and managerial needs for the B2E mobile tourism services. Such service classification framework offers a reference baseline and guidance for planning and system development of B2E mobile tourism services. Moreover, this research results show that from managers’ perspectives, the mobile tour quality control services are important, feasible, and cost-benefit effective while the mobile sales support services are feasible, effective, but not so important services. Finally, future researches are suggested to apply the service classification framework and system development framework to other mobile service domain to validate the appliance of the proposed service classification framework and system development framework.

隨著網路科技、行動手持裝置的發展，多元的行動服務開始被廣泛開發及應用，為了能提供更好的行動服務，行動服務提供者必須了解使用者對行動服務的認知與想法。此研究希望透過不同行動服務類型的特性，定義行動服務品質(Mobile service quality; M-S-QUAL)之適用範圍，並根據Hinkin所建議之量表建構方法，發展出一份有效衡量行動服務品質之量表(M-S-QUAL)，以歸納法自既有的服務品質文獻發展初步的問項。由於行動服務提供有形商品與無形商品的交易與交換，因此，M-S-QUAL也同時包含有形與無形商品行動服務品質量表，初步的M-S-QUAL包含九構面：系統效率(efficiency)、履行性(Fulfillment)、系統可用性(System availability)、隱私性(Privacy)、反應性(Responsiveness)、補償性(Compensation)、聯絡性 (Contact)、內容(Content)、帳務議題(Billing)，而有形/ 無形商品行動服務品質量表分別以50/49題問項衡量。此份量表透過問卷調查法進行資料的蒐集，並透過探索性因素分析(Exploratory factor analysis; EFA)及驗證性因素分析(Confirmatory factor analysis; CFA)萃取出四構面、15題問項之有形商品行動服務品質量表與五構面、16題問項之無形商品行動服務品質量表，此研究亦針對M-S-QUAL量表進行信、效度檢驗並利用不同校標(感知價值與忠誠意圖)進行迴歸分析以建立校標關聯效度。研究結果顯示本研究所發展的行動服務品質量表具有良好的心理計量特質(psychometric properties)。 / With the proliferation of wireless technologies, consumers are increasingly coming into contact with a diverse range of mobile services. Mobile service providers seeking to deliver a superior service must understand how consumers perceive mobile services. Many instruments such as SERVQUAL and E-S-QUAL have been used to measure service quality; however, no general mobile service quality evaluation measure currently exists. Given the many different types of mobile services available, our aim in this study was to ascertain the essential characteristics of mobile services by conceptualizing, constructing, refining and testing a multiple-item scale (M-S-QUAL) for measuring service quality in the mobile environment. According to Hinkin’s guide on the development of scales, items in the scale were generated by following a deductive approach based on a theoretical foundation. The mobile services examined in this study were divided into those for tangible and intangible product transactions. The results show that in intangible and tangible product shopping, M-S-QUAL includes five dimensions (contact, recovery, fulfillment, privacy, and efficiency) and four dimensions (contact, recovery, fulfillment, and efficiency), respectively. These two aspects of M-S-QUAL demonstrate good psychometric properties based on findings from a variety of exploratory factor analysis (EFA), confirmatory factor analysis (CFA), reliability and validity tests. The findings of this study may help mobile service providers assess the quality of their services and assist researchers in developing mobile service quality theories.

The master thesis deals with the issue of a single-wheeled robot, especially its construction and movement in more difficult terrain with the possibility of collecting samples. A variant of the robot balanced by a pair of gyroscopes was chosen as the most suitable construction. The robot is able to move in a space with an inclination of up to 24° and is equipped with its own manipulator design.

El objetivo del presente proyecto es demostrar la viabilidad de la empresa de servicio móvil de mantenimiento y reparación de bicicletas, denominada TOTAL BYKE. Para ello, se realiza una investigación de mercado, cuyos resultados evidencian que, existe una demanda insatisfecha por servicios de mantenimiento, reparación y adquisición de accesorios de bicicletas, ya que, los ciclistas deben recorrer largos tramos para ubicar un taller que brinde este tipo de servicios, los cuales, generalmente no brindan un buen trato al cliente, servicio de calidad ni cuentan con garantía. Asimismo, se ejecuta un diagnóstico con referencia al plan de marketing, operaciones, recursos humanos y financieros, mediante la aplicación de metodologías cualitativa y cuantitativa. Se realizaron entrevistas virtuales a usuarios acordes al grupo objetivo, para conocer su experiencia respecto al uso de bicicletas y los servicios relacionados que tienen a su alcance, tales como mantenimiento, reparación y compras de accesorios. Los resultados obtenidos suponen que existen diversos servicios dedicados al mantenimiento de bicicletas, los mismos que difieren grandemente con el valor agregado que el presente proyecto propone, un servicio técnico móvil itinerante, cuya naturaleza le permite estar cerca del segmento objetivo al que se dirige a través de los siguientes distritos, Jesús María, San Isidro, Miraflores, San Borja y Surco. El proyecto generaría un retorno de 61% como mínimo para los inversionistas, con un periodo de recuperación de 2 años y una rentabilidad del proyecto de 1.19 veces la inversión inicial. Por ello, consideramos que TOTAL BYKE es una idea de negocio viable. / The objective of this project is to demonstrate the viability of the mobile bicycle maintenance and repair service company, called TOTAL BYKE. To do this, a market research is carried out, the results of which show that there is an unsatisfied demand for maintenance, repair and purchase of bicycle accessories, since cyclists must travel long stretches to locate a workshop that provides this type of services, which generally do not provide good customer service, quality service or have a guarantee. Likewise, a diagnosis is carried out with reference to the marketing plan, operations, human and financial resources, through the application of qualitative and quantitative methodologies. Virtual interviews were conducted with users according to the target group, to learn about their experience regarding the use of bicycles and the related services available to them, such as maintenance, repair and purchases of accessories. The results obtained assume that there are various services dedicated to the maintenance of bicycles, the same that differ greatly with the added value that this project proposes, a mobile mobile technical service, whose nature allows it to be close to the target segment to which it is directed through from the following districts, Jesús María, San Isidro, Miraflores, San Borja and Surco. The project would generate a return of at least 61% for investors, with a payback period of 2 years and a project profitability of 1.19 times the initial investment. Therefore, we consider TOTAL BYKE to be a viable business idea. / Trabajo de investigación