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Content delivery through service overlay networks has gained popularity due to the overlays’ abilities to provide effective and reliable services. Inefficiencies of one-to-one matching of user requirements to a single service have given rise to service composition. Customized media delivery can be achieved through dynamic compositions of Service Specific Overlay Networks (SSONs). However, the presence of SSONs in dynamic environments raises the possibility of unexpected failures and quality degradations. Thus constructing, managing, and repairing corrupted service paths are challenging dilemmas. This thesis investigates the problem of autonomous SSON construction and management and identifies the drawbacks of current approaches. A novel multi-layered, autonomous, self-adaptive framework for constructing SSONs is presented. The framework includes a Hybrid Service Overlay Network layer (H-SON). The H-SON is a dynamic hybrid overlay dedicated to service composition for multimedia delivery in dynamic networks. Node placement in the overlay depends on the node’s stability, types and quality of provided services. Changes in stability and QoS of service nodes are reflected by dynamic re-organizations of the overlay. The H-SON permits fast and efficient searches for component services that meet client functional and quality expectations. Self-managed overlay nodes coordinate their behaviors to formulate a service composition path that meets the client’s requirements. Two approaches are presented in this work. The first illustrates how SSONs are established through dynamically adaptable MS-designed plans. The imprecise nature of nonfunctional service characteristics, such as QoS, is modeled using a fuzzy logic system. Moreover, semantic similarity evaluations enable us to include, in compositions, those services whose operations match, semantically, the requirements of the composition plan. Plan-based composition solutions restrict service discovery to defined abstract models. Our second composition approach introduces a semantic similarity and nearness SSON composition method. The objective is to free service nodes from the adherence to restrictive composition plans. The presented work illustrates a service composition solution that semantically advances service composition paths towards meeting users’ needs with each service hop while simultaneously guaranteeing user-acceptable QoS levels. Simulation results showcase the effectiveness of the presented work. Gathered results validate the success of our service composition methods while meeting user requirements.

Content delivery through service overlay networks has gained popularity due to the overlays’ abilities to provide effective and reliable services. Inefficiencies of one-to-one matching of user requirements to a single service have given rise to service composition. Customized media delivery can be achieved through dynamic compositions of Service Specific Overlay Networks (SSONs). However, the presence of SSONs in dynamic environments raises the possibility of unexpected failures and quality degradations. Thus constructing, managing, and repairing corrupted service paths are challenging dilemmas. This thesis investigates the problem of autonomous SSON construction and management and identifies the drawbacks of current approaches. A novel multi-layered, autonomous, self-adaptive framework for constructing SSONs is presented. The framework includes a Hybrid Service Overlay Network layer (H-SON). The H-SON is a dynamic hybrid overlay dedicated to service composition for multimedia delivery in dynamic networks. Node placement in the overlay depends on the node’s stability, types and quality of provided services. Changes in stability and QoS of service nodes are reflected by dynamic re-organizations of the overlay. The H-SON permits fast and efficient searches for component services that meet client functional and quality expectations. Self-managed overlay nodes coordinate their behaviors to formulate a service composition path that meets the client’s requirements. Two approaches are presented in this work. The first illustrates how SSONs are established through dynamically adaptable MS-designed plans. The imprecise nature of nonfunctional service characteristics, such as QoS, is modeled using a fuzzy logic system. Moreover, semantic similarity evaluations enable us to include, in compositions, those services whose operations match, semantically, the requirements of the composition plan. Plan-based composition solutions restrict service discovery to defined abstract models. Our second composition approach introduces a semantic similarity and nearness SSON composition method. The objective is to free service nodes from the adherence to restrictive composition plans. The presented work illustrates a service composition solution that semantically advances service composition paths towards meeting users’ needs with each service hop while simultaneously guaranteeing user-acceptable QoS levels. Simulation results showcase the effectiveness of the presented work. Gathered results validate the success of our service composition methods while meeting user requirements.

The society is getting older. A process called aging at the bottom will come with demographic and consequently socio economic changes. Due to this tide wave of elderly I have focused my research on seniors and the need for designing new social media services for them. This thesis is focused an understanding senior’s daily life, their activities, their relationship with their family, friends and groups of interest, how are they currently using the technology and finally to find out with them possibilities for alternative social media services that can sustain or enhance their social engagement and participation. A participatory design approach has been used for the research. Different techniques like cartographic mapping future workshops, walkthrough and diary are the methods that I have chosen for the collection of data. Data gathers is analyzed through the usage of thematic analysis and the main thematic has been presented by the original expressions of seniors during the workshops. Social media is still in its begging when it comes to services for seniors and the opportunities available are huge. This research can be considered a good start also for further services in the future.

Content delivery through service overlay networks has gained popularity due to the overlays’ abilities to provide effective and reliable services. Inefficiencies of one-to-one matching of user requirements to a single service have given rise to service composition. Customized media delivery can be achieved through dynamic compositions of Service Specific Overlay Networks (SSONs). However, the presence of SSONs in dynamic environments raises the possibility of unexpected failures and quality degradations. Thus constructing, managing, and repairing corrupted service paths are challenging dilemmas. This thesis investigates the problem of autonomous SSON construction and management and identifies the drawbacks of current approaches. A novel multi-layered, autonomous, self-adaptive framework for constructing SSONs is presented. The framework includes a Hybrid Service Overlay Network layer (H-SON). The H-SON is a dynamic hybrid overlay dedicated to service composition for multimedia delivery in dynamic networks. Node placement in the overlay depends on the node’s stability, types and quality of provided services. Changes in stability and QoS of service nodes are reflected by dynamic re-organizations of the overlay. The H-SON permits fast and efficient searches for component services that meet client functional and quality expectations. Self-managed overlay nodes coordinate their behaviors to formulate a service composition path that meets the client’s requirements. Two approaches are presented in this work. The first illustrates how SSONs are established through dynamically adaptable MS-designed plans. The imprecise nature of nonfunctional service characteristics, such as QoS, is modeled using a fuzzy logic system. Moreover, semantic similarity evaluations enable us to include, in compositions, those services whose operations match, semantically, the requirements of the composition plan. Plan-based composition solutions restrict service discovery to defined abstract models. Our second composition approach introduces a semantic similarity and nearness SSON composition method. The objective is to free service nodes from the adherence to restrictive composition plans. The presented work illustrates a service composition solution that semantically advances service composition paths towards meeting users’ needs with each service hop while simultaneously guaranteeing user-acceptable QoS levels. Simulation results showcase the effectiveness of the presented work. Gathered results validate the success of our service composition methods while meeting user requirements.

美國大學與研究圖書館學會（Association of College and Research Libraries）於1999年制訂「學術圖書館媒體資源指南」（Guideline for Media Resources in Academic Libraries），為大學媒體服務提供一參考準則。William D. Schmidt與 Donald A. Rieck. 在其合著之[媒體服務與管理：理論與實務]（Managing Media Services : Theory and Practice.）中亦曾列舉大學媒體中心之功能。由前述兩個標準與綱要可窺見大學媒體服務所應具備之基本規模與範圍，本研究之目的，即針對我國之大學圖書館與教學資源中心媒體服務進行瞭解，首先在於瞭解我國大學圖書館與教學資源中心或相關之媒體服務單位在大學環境中提供媒體服務的情況，其次探析大學環境與社群中所扮演的角色，最後歸納對兩單位彼此之間的各種互動、合作或競爭等關係、任務。 本研究以文獻分析法依據前段所述，彙整美國圖書館與教育領域針對大學媒體服務單位所制訂之媒體服務綱要，以（一）任務功能、（二）組織編制、（三）人員、（四）經費、（五）使用者服務、（六）館藏與設備、（七）資訊檢索、（八）與校園內其他媒體服務單位之關係、（九）遭遇問題、（十）數位科技對媒體服務的影響等十大方面，依據前述要件，對我國大學之圖書館與教學資源中心或媒體服務相關單位，進行半結構式的深度訪談。以立意抽樣之方式選擇訪談對象，共計有台大、交大、成大與淡江四所大學之圖書館與教學資源中心主管接受訪談。 本研究發現，在數位時代資訊技術與網路科技日漸普及之下，網路已成為大學圖書館與教學資源中心提供媒體服務的重要媒介之一，與其他新興與傳統視聽媒體同等重要，由受訪單位中多數單位均提供隨選資訊系統之服務可見一斑。此外本研究發現台灣地區目前之大學圖書館媒體服務，多以媒體資源之蒐集與維護為主，在教學、研究、學習上提供使用者媒體設備、閱聽空間以及隨選資訊系統，以支援大學社群各項媒體使用需求；教學資源中心之媒體服務主要以提供教學資料與教學相關軟硬體之支援服務，以及教學空間之維護與規劃，並定期進行教師之教學發展與訓練等。 本研究建議：積極研擬台灣地區大學圖書館之媒體服務指南、大學圖書館隨選資訊系統應擴展至全校園網路、大學圖書館之典藏資料系統與教學資源中心之典藏紀錄整合、大學應成立教學資源中心、媒體服務單位應積極解決人力資源問題、促進與使用社群間之良性溝通以提升媒體服務單位與其之關係、積極研究與評估新興視聽設備與資料格式、視聽資料編目專業人力分工與品質。

The thesis deals with analysis of legal aspects of product placement. First, it looks at product placement from a general point of view. The work explains past legal framework where product placement was a part of "unfair competition" both in EU and Czech Republic. Then, it analyzes particular articles of directive 2007/65/EC which regulates the term product placement as the first in the history. The analyses showed that there are a lot of vague and disputable terms, e. g. "significant value", provision "free of charge", or ensuring that viewers are "clearly informed" about existence of product placement. Further, the work analyzes an implementation of the directive to the czech law and its comparison with Slovakia. Product placement was translated into czech law as "umístění produktu". The implementation is reflected in the "on-demand audiovisual media services Act" but also in the amendment of Act Nr. 231/2001 Sb. By contrast, Slovakia did not create a new special Act for non-linear audiovisual media services, just amended Act Nr. 308/2000 Z.z. and some other affecting laws. Finally, the work confronts the legal theory with praxis. This is done by a survey. The most important result of the survey showed that almost a half of the respondents think that product placement is not a commercial practice. This fact highlights the importance of ensuring that viewers are "clearly informed" about the existence of product placement and also the provision of consumer protection.

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The thesis Legal Regulation of the Radio and Television Broadcast in the Czech Republic deals with an analysis and description of relevant legal regulations applicable in the area of broadcasting and television in the Czech Republic and with a closer insight in the main legal institutes and entities. A theoretically-juridical opening is followed by an introduction of the Czech Republic and European Union legal systems. The core of the thesis is the main topic, which is the legal regulation of the radio and television broadcasting in the Czech Republic. This part is opened by a short historical abstract followed by chapters dedicated to particular legal regulations. The Broadcasting Act, the Act on Czech Television, the Czech Television Code, the Act on Czech Radio, the Czech Radio Code and the Act on Audio Visual Media Services upon Request are described in individual chapters. The closing part is dedicated to some of the legal regulations and their provisions that are more remotely related to the subject. Individual chapters describe relevant legal institutes of the Act on Advertising Regulation, the Advertising Council Code of Ethics, the Consumer Protection Act, the Commercial Code and the Civil Code.