Дисертації з теми "Service-based applications"
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Kalyanasundaram, Anand Kumar. "Service based marketplace for applications." Master's thesis, Mississippi State : Mississippi State University, 2003. http://library.msstate.edu/etd/show.asp?etd=etd-11072003-110358.
Повний текст джерелаYangui, Sami. "Service-based applications provisioning in the cloud." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0024/document.
Повний текст джерелаCloud Computing is a new supplement, consumption, and delivery model for IT services based on Internet protocols. It is increasingly used for hosting and executing applications in general and service-based applications in particular. Service-based applications are described according to Service Oriented Architecture (SOA) and consist of assembling a set of elementary and heterogeneous services using appropriate service composition specifications like Service Component Architecture (SCA) or Business Process Execution Language (BPEL). Provision an application in the Cloud consists of allocates its required resources from a Cloud provider, upload source codes over their resources before starting the application. However, existing Cloud solutions are limited to static programming frameworks and runtimes. They cannot always meet with the application requirements especially when their components are heterogeneous as service-based applications. To address these issues, application provisioning mechanisms in the Cloud must be reconsidered. The deployment mechanisms must be flexible enough to support the strong application components heterogeneity and requires no modification and/or adaptation on the Cloud provider side. They also should support automatic provisioning procedures. If the application to deploy is mono-block (e.g. one-tier applications), the provisioning is performed automatically and in a unified way whatever is the target Cloud provider through generic operations. If the application is service-based, appropriate features must be provided to developers in order to create themselves dynamically the required resources before the deployment in the target provider using generic operations. In this work, we propose an approach (called SPD) to provision service-based applications in the Cloud. The SPD approach consists of 3 steps: (1) Slicing the service-based application into a set of elementary and autonomous services, (2) Packaging the services in micro-containers and (3) Deploying the micro-containers in the Cloud. Slicing the applications is carried out by formal algorithms that we have defined. For the slicing, proofs of preservation of application semantics are established. For the packaging, we performed prototype of service containers which provide the minimal functionalities to manage hosted services life cycle. For the deployment, both cases are treated i.e. deployment in Cloud infrastructure (IaaS) and deployment in Cloud platforms (PaaS). To automate the deployment, we defined: (i) a unified description model based on the Open Cloud Computing Interface (OCCI) standard that allows the representation of applications and its required resources independently of the targeted PaaS and (ii) a generic PaaS application provisioning and management API (called COAPS API) that implements this model
Endo, André Takeshi. "Model based testing of service oriented applications." Universidade de São Paulo, 2013. http://www.teses.usp.br/teses/disponiveis/55/55134/tde-20062013-140259/.
Повний текст джерелаA Arquitetura orientada a serviço (SOA) é um estilo arquitetural para estruturar sistemas de software de modo que exista um baixo grau de acoplamento entre as aplicações e essas possam ser facilmente integradas de forma dinâmica. A incorporação de SOA e serviços Web em sistemas que modelam processos de negócios grandes e complexos contribui para a necessidade de testes mais formais e sistemáticos. Além disso, características próprias dessa nova classe de software fazem com que técnicas de teste tradicionais não possam ser diretamente aplicadas. O teste baseado em modelo (TBM) apresenta-se como uma abordagem promissora que busca a resolução desses problemas. Esta tese investiga como duas técnicas de modelagem, Máquina de Estados Finitos (MEF) e Grafo de Sequência de Eventos (GSE), podem ser utilizadas para apoiar o TBM de aplicações orientadas a serviço. Essas técnicas modelam diferentes aspectos e podem ser aplicadas de forma complementar. Inicialmente, é definido um processo de TBM para aplicações orientadas a serviço que emprega MEFs. Com base na experiência adquirida, é proposta uma abordagem baseada em modelo para o teste de serviços compostos usando GSEs. Essa abordagem é holística uma vez que conjuntos de teste são gerados para cobrir tanto situações desejadas (teste positivo) quanto comportamentos inesperados (teste negativo). Três estudos experimentais avaliam a abordagem proposta: (i) um estudo de caso, (ii) uma análise de custo e (ii) um estudo na indústria. Ferramentas de teste também são apresentadas para apoiar o uso prático da abordagem proposta
Belhaj, Nabila. "Generic autonomic service management for component-based applications." Thesis, Université Paris-Saclay (ComUE), 2018. http://www.theses.fr/2018SACLL004/document.
Повний текст джерелаDuring the past decade, the complexity of applications has significantly scaled to satisfy the emerging business needs. Their design entails a composition of distributed and interacting software components. They provide services by means of the business interactions maintained by their components. Such applications are inherently in a dynamic evolution due to their context dynamics. Indeed, they evolve in changing environments while exhibiting highly dynamic conditions during their execution life-cycle (e.g., their load, availability, performance, etc.). Such contexts have burdened the applications developers with their design and management tasks. Subsequently, motivated the need to enforce the autonomy of their management to be less dependent on human interventions with the Autonomic Computing principles. Autonomic Computing Systems (ACS) implies the usage of autonomic loops, dedicated to help the system to achieve its management tasks. These loops main role is to adapt their associated systems to the dynamic of their contexts by acting upon an embedded adaptation logic. Most of time, this logic is given by static hand-coded rules, often concern-specific and potentially error-prone. It is undoubtedly time and effort-consuming while demanding a costly expertise. Actually, it requires a thorough understanding of the system design and dynamics to predict the accurate adaptations to bring to the system. Furthermore, such logic cannot envisage all the possible adaptation scenarios, hence, not able to take appropriate adaptations for previously unknown situations. ACS should be sophisticated enough to cope with the dynamic nature of their contexts and be able to learn on their own to properly act in unknown situations. They should also be able to learn from their past experiences and modify their adaptation logic according to their context dynamics. In this thesis manuscript, we address the described shortcomings by using Reinforcement Learning (RL) techniques to build our adaptation logic. Nevertheless, RL-based approaches are known for their poor performance during the early stages of learning. This poor performance hinders their usage in real-world deployed systems. Accordingly, we enhanced the adaptation logic with sophisticated and better-performing learning abilities with a multi-step RL approach. Our main objective is to optimize the learning performance and render it timely-efficient which considerably improves the ACS performance even during the beginning of learning phase. Thereafter, we pushed further our work by proposing a generic framework aimed to support the application developers in building self-adaptive applications. We proposed to transform existing applications by dynamically adding autonomic and learning abilities to their components. The transformation entails the encapsulation of components into autonomic containers to provide them with the needed self-adaptive behavior. The objective is to alleviate the burden of management tasks on the developers and let them focus on the business logic of their applications. The proposed solutions are intended to be generic, granular and based on a well known standard (i.e., Service Component Architecture). Finally, our proposals were evaluated and validated with experimental results. They demonstrated their effectiveness by showing a dynamic adjustment to the transformed application to its context changes in a shorter time as compared to existing approaches
Benze, Jörg. "Location Based Service Portale auf Basis von Network Integrated Applications." Saechsische Landesbibliothek- Staats- und Universitaetsbibliothek Dresden, 2014. http://nbn-resolving.de/urn:nbn:de:bsz:14-qucosa-140932.
Повний текст джерелаBenze, Jörg. "Location Based Service Portale auf Basis von Network Integrated Applications." Technische Universität Dresden, 2008. https://tud.qucosa.de/id/qucosa%3A27925.
Повний текст джерелаAraz, Bora. "Priorty Based Multi-constraint Qualty Of Service Routing In Military Applications." Master's thesis, METU, 2005. http://etd.lib.metu.edu.tr/upload/12606404/index.pdf.
Повний текст джерелаWang, Chen. "A chemistry-inspired middleware for flexible execution of service based applications." Phd thesis, INSA de Rennes, 2013. http://tel.archives-ouvertes.fr/tel-00982804.
Повний текст джерелаMohamed, Mohamed. "Generic monitoring and reconfiguration for service-based applications in the cloud." Thesis, Evry, Institut national des télécommunications, 2014. http://www.theses.fr/2014TELE0025/document.
Повний текст джерелаCloud Computing is an emerging paradigm in Information Technologies (IT). One of its major assets is the provisioning of resources based on pay-as-you-go model. Cloud resources are situated in a highly dynamic environment. However, each provisioned resource comes with functional properties and may not offer non functional properties like monitoring, reconfiguration, security, accountability, etc. In such dynamic environment, non functional properties have a critical importance to maintain the service level of resources and to make them respect the contracts between providers and consumers. In our work, we are interested in monitoring, reconfiguration and autonomic management of Cloud resources. Particularly, we put the focus on Service-based applications. Afterwards, we push further our work to treat Cloud resources. Consequently, this thesis contains two major contributions. On the first hand, we extend Service Component Architecture (SCA) in order to add monitoring and reconfiguration requirements description to components. In this context, we propose a list of transformations that dynamically adds monitoring and reconfiguration facilities to components even if they were designed without them. That alleviates the task of the developer and lets him focus just on the business of his components. To be in line with scalability of Cloud environments, we use a micro-container based approach for the deployment of components. On the second hand, we extend Open Cloud Computing Interface standards to dynamically add monitoring and reconfiguration facilities to Cloud resources while remaining agnostic to their level. This extension entails the definition of new Resources, Links and Mixins to dynamically add monitoring and reconfiguration facilities to resources. We extend the two contributions to couple monitoring and reconfiguration in order to add self management capabilities to SCA-based applications and Cloud resource. The solutions that we propose are generic, granular and are based on the de facto standards (i.e., SCA and OCCI). In this thesis manuscript, we give implementation details as well as experiments that we realized to evaluate our proposals
Nallur, Vivek. "A decentralized self-adaptation mechanism for service-based applications in the cloud." Thesis, University of Birmingham, 2012. http://etheses.bham.ac.uk//id/eprint/3383/.
Повний текст джерелаGuo, Jia. "Trust-based Service Management of Internet of Things Systems and Its Applications." Diss., Virginia Tech, 2018. http://hdl.handle.net/10919/82854.
Повний текст джерелаPh. D.
Gonidis, Fotios. "A framework enabling the cross-platform development of service-based cloud applications." Thesis, University of Sheffield, 2015. http://etheses.whiterose.ac.uk/13333/.
Повний текст джерелаLafranchise, Paul Andrew. "Migrating Department of Defense (DoD) Web Service Based Applications to Mobile Computing Platforms." Thesis, Monterey, California. Naval Postgraduate School, 2012. http://hdl.handle.net/10945/6820.
Повний текст джерелаRodríguez, Loya Salvador. "A standards-based ICT framework to enable a service-oriented approach to clinical decision support." Thesis, University of Sussex, 2015. http://sro.sussex.ac.uk/id/eprint/53243/.
Повний текст джерелаde, Siqueira Teles Fabrício. "Towards Model-Driven Engineering Constraint-Based Scheduling Applications." Universidade Federal de Pernambuco, 2008. https://repositorio.ufpe.br/handle/123456789/2348.
Повний текст джерелаde Siqueira Teles, Fabrício; Pierre Louis Robin, Jacques. Towards Model-Driven Engineering Constraint-Based Scheduling Applications. 2008. Dissertação (Mestrado). Programa de Pós-Graduação em Ciência da Computação, Universidade Federal de Pernambuco, Recife, 2008.
Zhai, Ke, and 翟可. "Budget-sensitive testing and analysis strategies and their applications to concurrent and service-based systems." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2013. http://hdl.handle.net/10722/210386.
Повний текст джерелаpublished_or_final_version
Computer Science
Doctoral
Doctor of Philosophy
Letswamotse, Babedi Betty. "Software defined networking based resource management and quality of service support in wireless sensor network applications." Thesis, University of Pretoria, 2018. http://hdl.handle.net/2263/67319.
Повний текст джерелаThesis (PhD)--University of Pretoria, 2019.
National Research Foundation
University of Pretoria
Electrical, Electronic and Computer Engineering
PhD
Unrestricted
Aryal, Ishwor. "Integrating Oracle PeopleSoft Campus Solution to External Applications." ScholarWorks@UNO, 2012. http://scholarworks.uno.edu/td/1508.
Повний текст джерелаSinclair, J. G. "An approach to compliance conformance for cloud-based business applications leveraging service level agreements and continuous auditing." Thesis, Queen's University Belfast, 2014. http://ethos.bl.uk/OrderDetails.do?uin=uk.bl.ethos.676738.
Повний текст джерелаBlagodárný, David. "Do Privacy Concerns Matter in Adoption of Location-based Smartphone Applications for Entertainment Purposes : A Study Among University Students in Sweden." Thesis, Linnéuniversitetet, Institutionen för informatik (IK), 2017. http://urn.kb.se/resolve?urn=urn:nbn:se:lnu:diva-67092.
Повний текст джерелаAlghamdi, Turki A. "Novel localised quality of service routing algorithms : performance evaluation of some new localised quality of service routing algorithms based on bandwidth and delay as the metrics for candidate path selection." Thesis, University of Bradford, 2010. http://hdl.handle.net/10454/5420.
Повний текст джерелаAit, Lahcen Ayoub. "Developing component-based applications with a data-centric approach and within a service-oriented P2P architecture : specification, analysis and middleware." Nice, 2012. http://www.theses.fr/2012NICE4084.
Повний текст джерелаDeveloping Peer-to-Peer (P2P) applications became increasingly important in software development. Nowadays, a large number of organizations from many different sectors and sizes depend more and more on collaboration between actors (individuals, groups, communities, etc. ) to perform their tacks. These P2P applications usually have a recursive behaviour that many modeling approaches cannot describe and analyze (e. G. Finite-state approaches). Another challenging issue in P2P application development is the tight coupling between application specification and the underlying P2P technologies and protocols. This forces software developers to make tedious efforts in finding and understanding detailed knowledge about P2P low level concerns. Moreover, this tight coupling constraints applications to run in a changeless runtime environment. Consequently, choosing (for example) another protocol at runtime to meet a new requirement becomes very difficult. Besides these previous issues, P2P applications are usually specified with a weak ability to delegate computing activities between peers, and especially focus on data sharing and storage. Thus, it is not able to take full advantages of the computing power of the underlying P2P network. In this thesis, we present an approach that combines component – and service-oriented development with well-understood methods and techniques from the fields of Attribute Grammars and Data-Flow Analysis (commonly used in compiler construction) in order to offer greater ease in the specification, analysis and deployment of applications ion P2P architecture. This approach embodies : i) A formal language called DDF (Data-Dependency Formalism) to specify applications and construct their Data-Dependency Graphs (DDGs). A DDG has been defined to be an abstract representation of applications. Ii) An analysis method that uses DDG to infer and compute various properties, including some properties that model checkers cannot compute if the system presents recursive behaviour. Iii) A component-based service middleware called SON (Shared-data Overlay Network) to develop and execute applications within P2P architecture without the stress of dealing with P2P low level complexity. Thanks to SON’s automatic generation
García, Moral Daniel Jesús. "Remote File Access System for Generic Ericsson Processor Boards : File transfer service, Random Access Memory-based file system and secure file transfer solution research." Thesis, KTH, Skolan för informations- och kommunikationsteknik (ICT), 2011. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-53448.
Повний текст джерелаNúñez, Benjamin. "Applying a router-based-distributed bandwidth allocation algorithm to dynamically implement traffic engineering over MPLS-based networks in order to increase the quality of service for non-elastic applications." Diss., Connect to online resource, 2006. http://gateway.proquest.com/openurl?url_ver=Z39.88-2004&rft_val_fmt=info:ofi/fmt:kev:mtx:dissertation&res_dat=xri:pqdiss&rft_dat=xri:pqdiss:1435226.
Повний текст джерелаCARMO, ANNIBAL JOSE RORIS RODRIGUEZ SCAVARDA DO. "EVOCATIVE METHODOLOGY FOR CAUSAL MAPPING AND ITS PERSPECTIVE IN THE OPERATIONS MANAGEMENT WITH INTERNET-BASED APPLICATIONS FOR SUPPLY CHAIN MANAGEMENT AND SERVICE MANAGEMENT." PONTIFÍCIA UNIVERSIDADE CATÓLICA DO RIO DE JANEIRO, 2004. http://www.maxwell.vrac.puc-rio.br/Busca_etds.php?strSecao=resultado&nrSeq=5331@1.
Повний текст джерелаA compreensão dos atuais processos produtivos é essencial neste momento em que o conhecimento tornou-se um importante gerador de valor. Uma visão holística dos conhecimentos que estão disseminados, de forma dispersa, entre profissionais, consultores e acadêmicos é necessária para a síntese de novas teorias da produção. Pesquisadores de gerência de operações freqüentemente usam mapeamento causal como um mecanismo para construir e comunicar teorias, particularmente em suporte à pesquisa empírica. As abordagens mais usuais para capturar dados cognitivos para um mapa causal são brainstorming e entrevistas, os quais exigem muito tempo e apresentam um significativo custo em sua implementação. Esta tese visa gerar uma metodologia (Metodologia Evocativa para Mapeamento Causal - ECMM) voltada para aplicação em pesquisa sobre gerência de operações para coletar e estruturar dados disseminados de forma desagregada, como conhecimento e experiência profissional e acadêmica, contidos nas opiniões de um grande número de especialistas dispersos demograficamente e geograficamente. Isto é alcançado evocando opiniões, codificando-as em variáveis e reduzindo o grupo em conceitos e relações. Tem-se uma especial preocupação em conseguir este objetivo em tempo factível e com baixo custo. A coleta de dados é assíncrona, via Internet, possui dois ou três turnos (à semelhança do método Delfos). A análise de dados usa codificação, técnica de grupamento hierárquica e escalamento multidimensional para identificar conceitos na forma de mapas cognitivos. A ECMM foi ilustrada com aplicações que demonstram sua viabilidade. Aplicou-se nas áreas de gestão da cadeia de suprimento (SCM) e administração de serviços (SM) com a participação de aproximadamente 1.300 respondentes de empresas e universidades de quase 100 países. Dentre os desdobramentos para pesquisas futuras propõe-se aplicar nas áreas de ECMM em SCM e SM visando a uni-las em um tema: gestão da cadeia de suprimento de serviços.
The understanding of the present productive processes is essential at this moment when knowledge became an important value creator. A holistic vision of the pieces of knowledge that are spread out and dispersed among practitioners, consultants and academics is necessary for the synthesis of new theories of production. Operations management researchers often use causal mapping as a key tool for building and communicating theory, particularly in support of empirical research. The widely accepted approaches for capturing cognitive data for a causal map are informal brainstorming and interviews, which require a time- consuming and significant cost of implementation. This dissertation aims at creating a methodology (Evocative Causal Mapping Methodology - ECMM) intended for use in operations management research for collecting and structuring dispersed data spread out as practical and research knowledge, and experience contained in the opinions of a large number of specialists demographically and geographically scattered. This is accomplished by evoking opinions, encoding them into variables and reducing the resulting set to concepts and relationships. A special concern is to achieve this goal in a feasible time and cost- efficient way. ECMM consists of two or three round, Delphi- like, Internet-based asynchronous data collection, and a data analysis that uses a coding panel of experts, hierarchical cluster analysis and multidimensional scaling for identifying concepts on cognitive map formats. Applications illustrate ECMM and demonstrate its feasibility. They were developed on supply chain management (SCM) and service management (SM) involving about 1,300 respondents of companies and universities of about 100 countries. Among possible unfolding future studies, this dissertation proposes to apply ECMM in SCM and SM aiming at unifying them into a single topic: service supply chain management.
Schmidt, Thomas Rudolf. "Adaptionsalgorithmen zur Erhöhung der Dienstgüte verteilter interaktiver Multimedia-Anwendungen in IP-basierten Netzen = Adaptation algorithms for quality of service improvement of distributed interactive multimedia applications in IP-based networks /." Stuttgart : Inst. für Kommunikationsnetze und Rechnersysteme, 2004. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=012853721&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Повний текст джерелаImtiaz, Jahanzaib. "Route transmission & control applications and Java web services route transmission and control using a Java EE5 web service and a vehicle based mobile device (cellular phone or a PDA with GPS)." Saarbrücken VDM Verlag Dr. Müller, 2007. http://d-nb.info/988696614/04.
Повний текст джерелаMovahedi, Zahra. "A business process approach for application development in wireless sensor and actuator networks." Thesis, Université Paris-Saclay (ComUE), 2015. http://www.theses.fr/2015SACLL002.
Повний текст джерелаWireless Sensor and Actuator Networks (WSANs) is an emergent technology for various application areas such as security and surveillance applications, traffic control, energy control, etc. Designing and developing applications using these technologies remain, however, a challenging task. Indeed, finding the relevant sensors and actuators, and combining them in a proper way in order to achieve a specific goal is not an easy task and requires several skills detained by different stakeholders. Moreover, sensor/actuator environments are inherently highly dynamic. Furthermore, current applications are in general tightly coupled to the underlying infrastructure which hampers their reuse and flexibility to changes.In this thesis, we present a process-oriented and service-based approach for supporting the development of adaptive WSAN applications. Our approach decouples between the application logic and its implementation. A design-time model is first specified, as a flow of activities, which is then deployed in a particular environment. Decoupling the application logic from its implementation enables on one hand to foster the reuse at the application level and on the other hand to adapt the same application to different environments and situations. To assist designers in specifying new WSAN applications, we propose two methods: 1)activity and orchestration reuse through data flows, and 2)activity recommendation through control flows. Moreover, the same recommendation technique enables providing fault-tolerant mechanism enabling a WSAN application to adapt to changes due to sensor failures or constraints violation. Our approach has been validated by realistic use cases that have been implemented in the context of the European project VITRO platform and the Zodianet platform
Anjum, Maria. "Design models for service-based software application." Thesis, Durham University, 2013. http://etheses.dur.ac.uk/7343/.
Повний текст джерелаShi, Shengkai, and 石晟恺. "Cost-aware online VM purchasing for cloud-based application service providers with arbitrary demands." Thesis, The University of Hong Kong (Pokfulam, Hong Kong), 2014. http://hdl.handle.net/10722/208014.
Повний текст джерелаpublished_or_final_version
Computer Science
Master
Master of Philosophy
Metin, Mehmet Ozer. "Creating Application Security Layer Based On Resource Access Decision Service." Master's thesis, METU, 2003. http://etd.lib.metu.edu.tr/upload/12608827/index.pdf.
Повний текст джерелаenterprise-level"
and "
application-level"
security aspects in one layer could give great benefits such as reusability, manageability, and scalability. In this thesis, adding a new layer to n-tier web application architectures to provide a common evaluation and enforcement environment for both enterprise-level and application level policies to bring together access controlling with application-level security. Removing discrimination between enterprise-level and application-level security policies improves manageability, reusability and scalability of whole system. Resource Access Decision (RAD) specification has been implemented and used as authentication mechanism for this layer. RAD service not only provides encapsulating domain specific factors to give access decisions but also can form a solid base to apply positive and negative security model to secure enterprise web applications. Proposed solution has been used in a real life system and test results have been presented.
Kongdenfha, Woralak Computer Science & Engineering Faculty of Engineering UNSW. "Pattern-based data and application integration in service oriented architectures." Awarded By:University of New South Wales. Computer Science & Engineering, 2009. http://handle.unsw.edu.au/1959.4/42600.
Повний текст джерелаDanciu, Vitalian. "Application of policy-based techniques to process-oriented IT Service Management." Diss., lmu, 2007. http://nbn-resolving.de/urn:nbn:de:bvb:19-78161.
Повний текст джерелаSingaravelu, Lenin. "End-to-End Security of Information Flow in Web-based Applications." Diss., Georgia Institute of Technology, 2007. http://hdl.handle.net/1853/16142.
Повний текст джерелаJawad, Dina, and Felicia Rosell. "Speak-up as a Resource Based Defence against Application Layer Distributed Denial-of-Service Attacks." Thesis, KTH, Skolan för datavetenskap och kommunikation (CSC), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-166597.
Повний текст джерелаIn recent years, the internet has endured an increase in application layer DDoS attacks. It is a growing problem that needs to be addressed. This paper presents a number of existing detection and protection methods that are used to mitigate application layer DDoS attacks. Anomaly detection is a widely explored area for defence and there have been many findings that show positive results in mitigating attacks. However, anomaly detection possesses a number of flaws, such as causing false positives and negatives. Another method that has yet to become thoroughly examined is resource based defence. This defence method has great potential as it addresses clear differences between legitimate users and attackers during a DDoS attack. One such defence method is called Speak-up and is the center of this paper. The advantages and limitations of Speak-up have been explored and the findings suggest that Speak-up has the potential to become a strong tool in defending against DDoS attacks. However, Speak-up has its limitations and may not be the best alternative during certain types of application layer DDoS attacks.
Foekens, Eijte Willem. "Scanner data based marketing modelling : empirical applications /." Capelle a/d IJssel : Labyrint Publ, 1995. http://bvbr.bib-bvb.de:8991/F?func=service&doc_library=BVB01&doc_number=007021048&line_number=0001&func_code=DB_RECORDS&service_type=MEDIA.
Повний текст джерелаLee, Chi-ching Kathy. "Application of the concept of performance-based pay in Hong Kong civil service." Click to view the E-thesis via HKUTO, 2003. http://sunzi.lib.hku.hk/hkuto/record/B31967243.
Повний текст джерелаSolari, Jaime 1973. "An application service provider infrastructure for shared workspaces in Internet-based collaborative design." Thesis, Massachusetts Institute of Technology, 2000. http://hdl.handle.net/1721.1/9036.
Повний текст джерелаIncludes bibliographical references (leaves 103-107).
For architectural, engineering and construction projects involving transient 'virtual organizations' composed of non-collocated team-members, the adoption of concurrent design principles is seen as vital. An important aspect of concurrent design is the need for an effective communications infrastructure between team members. Traditionally, such communication has been handled through person-to-person meetings, however the complexity of modern projects has grown and as a result, reliance on new information and communications technologies is becoming increasingly necessary. Hence, within a concurrent design setting, there is the need for an integrated information and collaboration environment that will create a persistent shared workspace to support interaction between project personnel throughout all phases of the project. This research explores computer-supported mechanisms for enhancing distributed design collaboration. The goal of this thesis is to develop a set of requirements, system architecture and an early system prototype to facilitate computer-supported collaboration among distributed teams. The prototype will consist of a persistent shared workspace system built from the integration of complementary collaborative applications. These applications are the CAIRO system, developed at the Massachusetts Institute of Technology and the VNC system developed at the Olivetti Research Laboratory.
by Jaime Solari.
S.M.
Khan, Imran. "Cloud-based cost-efficient application and service provisioning in virtualized wireless sensor networks." Thesis, Evry, Institut national des télécommunications, 2015. http://www.theses.fr/2015TELE0019/document.
Повний текст джерелаWireless Sensor Networks (WSNs) are becoming ubiquitous and are used in diverse applications domains. Traditional deployments of WSNs are domain-specific, with applications usually embedded in the WSN, precluding the re-use of the infrastructure by other applications. This can lead to redundant deployments. Now with the advent of IoT, this approach is less and less viable. A potential solution lies in the sharing of a same WSN by multiple applications and services, to allow resource- and cost-efficiency. In this dissertation, three architectural solutions are proposed for this purpose. The first solution consists of two parts: the first part is a novel multilayer WSN virtualization architecture that allows the provisioning of multiple applications and services over the same WSN deployment. The second part of this contribution is the extended architecture that allows virtualized WSN infrastructure to interact with a WSN Platform-as-a-Service (PaaS) at a higher level of abstraction. Both these solutions are implemented and evaluated using two scenario-based proof-of-concept prototypes using Java SunSpot kit. The second architectural solution is a novel data annotation architecture for the provisioning of semantic applications in virtualized WSNs. It is capable of providing in-network, distributed, real-time annotation of raw sensor data and uses overlays as the cornerstone. This architecture is implemented and evaluated using Java SunSpot, AdvanticSys kits and Google App Engine. The third architectural solution is the enhancement to the data annotation architecture on two fronts. One is a heuristic-based genetic algorithm used for the selection of capable nodes for storing the base ontology. The second front is the extension to the proposed architecture to support ontology creation, distribution and management. The simulation results of the algorithm are presented and the ontology management extension is implemented and evaluated using a proof-of-concept prototype using Java SunSpot kit. As another contribution, an extensive state-of-the-art review is presented that introduces the basics of WSN virtualization and motivates its pertinence with carefully selected scenarios. This contribution substantially improves current state-of-the-art reviews in terms of the scope, motivation, details, and future research issues
Amziani, Mourad. "Modeling, evaluation and provisioning of elastic service-based business processes in the cloud." Thesis, Evry, Institut national des télécommunications, 2015. http://www.theses.fr/2015TELE0016/document.
Повний текст джерелаCloud computing is being increasingly used for deploying and executing business processes and particularly Service-based Business Processes (SBPs). Among other properties, Cloud environments provide elasticity at different scopes. The principle of elasticity is to ensure the provisioning of necessary and sufficient resources such that a Cloud service continues running smoothly even when the number or quantity of its utilization scales up or down, thereby avoiding under-utilization and over-utilization of resources. It is obvious that provisioning of elastic infrastructures and/or platforms is not sufficient to provide elasticity of deployed business processes. In fact, it is also necessary to consider the elasticity at the application scope. This allows the adaptation of deployed applications during their execution according to demands variation. Therefore, business processes should be provided with elasticity mechanisms allowing their adaptation to the workload changes while ensuring the desired functional and non-functional properties. In our work, we were interested in providing a holistic approach for modeling, evaluating and provisioning of elastic SBPs in the Cloud. We started by proposing a formal model for SBPs elasticity. To do this, we modeled SBPs using Petri nets and defined two elasticity operations (duplication / consolidation). In addition, we proposed to intertwine these elasticity operations with an elasticity controller that monitors SBPs execution, analyzes monitoring information and executes the appropriate elasticity operation (duplication/consolidation) in order to enforce the elasticity of SBPs. After facing the challenge of defining a model and mechanisms for SBPs elasticity, we were interested in the evaluation of elasticity before implementing it in real environments. To this end, we proposed to use our elasticity controller as a framework for the validation and evaluation of elasticity using verification and simulation techniques. Finally, we were interested in the provisioning of elasticity mechanisms for SBPs in real Cloud environments. For this aim, we proposed two approaches. The first approach packages non-elastic SBPs in micro-containers, extended with our elasticity mechanisms, before deploying them in Cloud infrastructures. The second approach integrates our elasticity controller in an autonomic infrastructure to dynamically add elasticity facilities to SBPs deployed on Cloud platforms
Simons, A. J. H., and Raluca Lefticaru. "A verified and optimized Stream X-Machine testing method, with application to cloud service certification." Wiley, 2019. http://hdl.handle.net/10454/17608.
Повний текст джерелаThe Stream X-Machine (SXM) testing method provides strong and repeatable guarantees of functional correctness, up to a specification. These qualities make the method attractive for software certification, especially in the domain of brokered cloud services, where arbitrage seeks to substitute functionally equivalent services from alternative providers. However, practical obstacles include: the difficulty in providing a correct specification, the translation of abstract paths into feasible concrete tests, and the large size of generated test suites. We describe a novel SXM verification and testing method, which automatically checks specifications for completeness and determinism, prior to generating complete test suites with full grounding information. Three optimisation steps achieve up to a ten-fold reduction in the size of the test suite, removing infeasible and redundant tests. The method is backed by a set of tools to validate and verify the SXM specification, generate technology-agnostic test suites and ground these in SOAP, REST or rich-client service implementations. The method was initially validated using seven specifications, three cloud platforms and five grounding strategies.
European Union Seventh Framework Programme (FP7/2007-2013) under grant agreement no. 328392, the Broker@Cloud project [11].
Quaresmini, Jimmy. "Location based sports/fitness app : Android app for smartphones." Thesis, KTH, Radio Systems Laboratory (RS Lab), 2015. http://urn.kb.se/resolve?urn=urn:nbn:se:kth:diva-160260.
Повний текст джерелаStockholms stads budget för sport är 1,6% av den totala budgeten 2014. Ungefär 60 000 licensierade (15 år och uppåt, 50 %) och yngre aktiva fotbollsspelare fanns i Stockholm år 2005. Det motsvarar ungefär 24 % av dem som utövade sport det året i Stockholms distrikt. Det finns ett behov av en platsbaserad applikation (vanligen förkortat ”app”) som hjälper människor att spontant träffas för att utöva olika sporter man utför tillsammans. Appen som utvecklas och analyseras i detta examensarbete försöker tillgodose detta behov och hjälper potentiella deltagare att organisera sportaktiviteter, besluta att delta i dessa aktiviteter, skaffa nya vänner m.m. Inte bara stora lagsporter, men också sporter man utför i par som tennis och andra sporter man utför tillsammans med andra kommer beaktas. Betänk en person som nyss har flyttat till en ny stad och vill spela fotboll, men inte känner några i denna stad. Denna app kan hjälpa den här personen hitta andra som vill sporta på ett enkelt och snabbt sätt genom att titta på en karta och se var andra vill utöva denna sport, t.ex. på en viss fotbollsplan, med användning av platsinformation om potentiella deltagare och denna specifika plan. Appar som använder platsinformation har blivit väldigt vanliga med det utbredda användandet av smarta mobiltelefoner. En sådan här app erbjuder en platsbaserad tjänst. Denna rapport beskriver designen och implementationen av en Android app med en platsbaserad tjänst och hur man sätter upp en sådan här app, vilka teknologier som behövs för att få den platsinformation som behövs och det programmeringsspråk som används. Därutöver kommer rapporten överväga användares behov och hur appen tillgodoser dessa behov. En analys kommer genomföras av hur denna app kommunicerar med en databas server när antalet användare ökar, när den skalar. Prestanda och belastning av både appen och servern kommer tas med i beräkningen. Prestandan kommer analyseras för att se hur väl det motsvarar användares förväntningar. Appen som utvecklas i detta examensarbete kommer vara för Android och Apples iOS (men fokuset i detta examensarbete kommer vara på Android versionen). Denna app kommer kommunicera med en databas server som kör ett Linux OS, har en Apache http (webb) server, en MySQL databas och som använder en PHP programmerings-infrastrutur (en sådan uppsättning tjänster kallas vanligen LAMP, en akronym). Appen kommer ansluta till Facebook och Twitter för att utbyta information (men det ligger dock utanför ramen för detta examensarbete).
Pham, Andrew Minh-Quan. "An Implementation of Utility-Based Traffic Shaping on Android Devices." Thesis, Virginia Tech, 2014. http://hdl.handle.net/10919/49670.
Повний текст джерелаMaster of Science
Gopinath, Sunil. "An Application Layer Framework for Location- based Service Discovery and Provisioning for Mobile Devices." Thesis, Virginia Tech, 2001. http://hdl.handle.net/10919/32248.
Повний текст джерелаMaster of Science
Lagerman, Rikard. "An empirical study of the transformation of a Node.js based web application, Entize Planning, into a cloud service." Thesis, Karlstads universitet, Institutionen för matematik och datavetenskap, 2014. http://urn.kb.se/resolve?urn=urn:nbn:se:kau:diva-32318.
Повний текст джерелаWang, Yating. "Trust-Based Service Management for Service-Oriented Mobile Ad Hoc Networks and Its Application to Service Composition and Task Assignment with Multi-Objective Optimization Goals." Diss., Virginia Tech, 2016. http://hdl.handle.net/10919/70965.
Повний текст джерелаPh. D.
Adjoyan, Seza. "Describing Dynamic and Variable Software Architecture Based on Identified Services From Object-Oriented Legacy Applications." Thesis, Montpellier, 2016. http://www.theses.fr/2016MONTS022/document.
Повний текст джерелаService Oriented Architecture (SOA) is an architectural design paradigm which facilitates building and composing flexible, extensible and reusable service-oriented assets. These latter are encapsulated behind well-defined and published interfaces that can be dynamically discovered by third-party services. Before the advent of SOA, several software systems were developed using older technologies. Many of these systems still afford a business value, however they suffer from evolution and maintenance problems. It is advantageous to modernize those software systems towards service-based ones. In this sense, several re-engineering techniques propose migrating object-oriented applications towards SOA. Nonetheless, these approaches rely on ad-hoc criteria to correctly identify services in object-oriented legacy source code.Besides, one of the most distinguishing features of a service-oriented application is the ability to dynamically reconfigure and adjust its behavior to cope with changing environment during execution. However, in existing architecture description languages handling this aspect, reconfiguration rules are represented in an ad-hoc manner; reconfiguration scenarios are often implicit. This fact hinders a full management of dynamic reconfiguration at architecture level. Moreover, it constitutes a challenge to trace dynamic reconfiguration description/management at different levels of abstraction.In order to overcome the aforementioned problems, our contributions are presented in two axes: First, in the context of migrating legacy software towards SOA, we propose a service identification approach based on a quality measurement model, where service characteristics are considered, refined to measurable metrics in order to measure the semantic correctness of identified services. The second axis is dedicated to an Architecture Description Language (ADL) proposition that describes a variant-rich service-based architecture. In this modular ADL, dynamic reconfigurations are specified at architecture level. Moreover, the description is enriched with context and variability information, in order to enable a variability-based self-reconfiguration of architecture in response to context changes at runtime
Ferrel, Tyrone H. "Rapid, value-based, evolutionary acquisition and its application to a USMC tactical service orientated architecture." Thesis, Monterey, Calif. : Naval Postgraduate School, 2009. http://edocs.nps.edu/npspubs/scholarly/theses/2009/Jun/09Jun%5FFerrel.pdf.
Повний текст джерелаThesis Advisor(s): Hayes-Roth, Rick. "June 2009." Description based on title screen as viewed on July 13, 2009. DTIC Identifiers: Defense acquisition, RVEA (Rapid Value-based Evolutionary Acquisition), rapid acquisition. Author(s) subject terms: Acquisition, Defense Acquisition, Rapid Acquisition, Project Management, Program Management, Service Oriented Architecture, Tactical Service Oriented Architecture. Includes bibliographical references (p. 75-79). Also available in print.
Jianzhao, Huang. "A SERVICE-ORIENTED FRAMEWORK FOR SENSOR-BASED APPLICATIONS." Master's thesis, 2009. http://hdl.handle.net/10048/695.
Повний текст джерелаCHANG, YAO-WEN, and 張耀文. "A Push-based RESTful Web Service for Industrial Applications." Thesis, 2014. http://ndltd.ncl.edu.tw/handle/26488710511974296734.
Повний текст джерела國立臺北大學
資通科技產業碩士專班
102
Due to the web development technologies is growing fast in recent years, either the application development of Industrial or Business, we now have the better choices. RESTful is the software architecture style of web development, the concept of data manipulation in RESTful is more lightweight than compared with SOAP. It can access the resources purely by using HTTP method. RESTful is considered as main architecture of web development. In terms of server push, the practice of enabling servers to push data is sending a request periodically from browser that requires servers to respond update data, this approach not only consume bandwidth and inefficiency but also quite inconvenient to use. For the server push issue, there are many open source protocol and framework like Pub/Sub protocol, Ajax Push Model, however, it has relative complexity on system development when adopting the above protocols and frameworks, so, the solution that we adopted is using the feature of event-driven of JavaScript to design a mechanism that can receive event on the server side and did asynchronous response for different event. On the browser side, it can establish a connection to the server through HTML5 technology and send a query or an event request once. It can make RESTful service achieve instant notification when a message updated or satisfied specific criteria, this service is suitable for applying to remote monitoring applications of data resources that needs to be monitored. This thesis proposed a RESTful web service that enables servers to push data to browser for industrial applications. This system reduced the number of request to servers, the design of system architecture is not only lightweight and also have impressive performance. In the future, if the system can be integrated with hardware resources, it will likely to replace the industrial automation solutions as a more complete service.