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  • About
  • The Global ETD Search service is a free service for researchers to find electronic theses and dissertations. This service is provided by the Networked Digital Library of Theses and Dissertations.
    Our metadata is collected from universities around the world. If you manage a university/consortium/country archive and want to be added, details can be found on the NDLTD website.
71

安全多方計算協定描述語言之設計與實作 / A Protocol Description Language for Secure Multi-Party Computation

黃文楷, Huang, Wen Kai Unknown Date (has links)
安全多方計算的研究主要是針對在分散環境下的兩造(或多方)之間,如何在不透露彼此私有的資料的情況下,計算一個約定函數的問題,並要確保除了計算結果及其可能推導出的資訊,不會洩漏額外的私有資料。依此設計出來的函數算法,稱為安全的多方計算協定(protocol)。 過去兩年本實驗室根據一套基於向量內積運算(scalar product)發展出的安全多方計算方法,設計了一個雛型的分散式系統框架,開發了一套符合其安全要求的常用算數運算函數庫。 但目前個別的應用問題在此系統上發展安全協定的程式時,使用者必須相當熟悉其架構與程式庫細節,才能開發所需程式,造成推廣上的障礙。有鑑於此,本論文採用領域專屬語言(domain-specific language)的方法與技術,針對一般安全多方協定程式的特徵來進行歸納與分析,找出協助其表達計算步驟的適當抽象機制,並在設計上訂定了以下目標: 1. 設計一高階語言用以描述多方安全計算,以提供使用者撰寫安全多方計算程式。 2. 檢查並確保使用者撰寫的程式不會有資訊洩漏。 3. 多方安全運算執行上能保持一定的效率。 4. 建立多方安全計算的運算流程,讓PDL與現有的運作環境配合,達到各伺服器合作運行多方安全計算的目的。 朝向這四個目標發展出一套協定描述語言與其編譯器。以便與SMC-Protocol以及其環境合作,協助領域專家以更簡便的方式來設計與實驗更多的安全多方協定。我們稱此語言為多方安全計算協定描述語言(Protocol Description Language, PDL)。 / Protocols for secure multi-party computation (SMC) allow participants to share a computation while each party learns only what can be inferred from their own inputs and the output of the computation. In the past two years, we developed an SMC implementation framework for both integers and floating numbers which comprises a set of arithmetic operations that manipulate secret values among involved parties using the scalar product protocol as the basis. Such a library of arithmetic operations is call building blocks. But using this library is not easy. To solve individual SMC problem, programmer should knowing the given framework and protocol detail very well. This difficulty makes them won't consider this framework while facing the need of SMC. To ease the writing of more complex user-defined protocols, using the technique of domain-specific language, this thesis analysis the general needs of SMC, develop a domain-specific language of SMC, and implement a compiler that coverts this language to SMC code, which is executable code composed of the protocols of given framework. We called this language Protocol Description Language, PDL.
72

Building environment rule and analysis (BERA) language and its application for evaluating building circulation and spatial program

Lee, Jin Kook 18 January 2011 (has links)
This study aims to design and implement a domain-specific computer programming language: the Building Environment Rule and Analysis (BERA) Language. As a result of the growing area of Building Information Modeling (BIM), there has been a need to develop highly customized domain-specific programming languages for handling issues in building models in the architecture, engineering and construction (AEC) industry. The BERA Language attempts to deal with building information models in an intuitive way in order to define and analyze rules in design stages. The application of the BERA Language aims to provide efficiency in defining, analyzing and checking rules. Specific example applications implemented in this dissertation are on the evaluation of two key aspects: building circulation and spatial programming. The objective of this study is to accomplish an effectiveness and ease of use without precise knowledge of general-purpose languages that are conventionally used in BIM software development. To achieve the goal, this study proposes an abstraction of the universe of discourse - it is the BERA Object Model (BOM). It is a human-centered abstraction of complex state of building models rather than the computation-oriented abstraction. By using BOM, users can enjoy the ease of use and portability of BIM data, rather than complex and platform-dependent data structures. This study also has reviewed and demonstrated its potential for extensibility of BOM. Not only its lateral extensions such as structural building elements, but also the vertical extensions such as additional properties for existing BOM objects are good examples. In current BERA Language Tool, many computed and derived properties/relations have been proposed and implemented, as well as some basic data directly from the given building model. Target users of the BERA Language are domain experts such as architects, designers, reviewers, owners, managers, students, etc., rather than BIM software developers. It means that the people who are interested in the building environment rule and analysis are the potential users. The BERA Language Tool comprises many libraries to alleviate common but unnecessary problems and limitations that are encountered when users attempt to analyze and evaluate building models using commercially available tools. Combined with other libraries which populate rich and domain-specific datasets for certain purposes, the BERA Language will be fairly versatile to define rules and analyze various building environmental conditions.
73

支援虛實互動展演之程式環境 / Programming Support for Cyber-Physical Interactive Performance Art

蕭奕凱, Hsiao, Yi Kai Unknown Date (has links)
本研究係發想自政治大學「未來馬戲團」的展演活動表演方式,嘗試改進表演方式中的程式技術,以程式化方式整合展演藝術中實體與虛擬的互動平台,我們希望提供導演撰寫較為口語或展演描述方式的腳本敘述如『when ... other-wise ...』,如此一來就可以任意組合實體演員的肢體動作與指示虛擬環境的特效,因此我們採用了一套介接實體與虛擬環境應用程式的領域專屬語言- Digital In-teractive Performance Sketch (DIPS),用以開發客製化的展演程式庫,並佈署於本團隊自行開發的執行引擎 Wearable Item Service runtimE (WISE),提供導演在這個引擎上透過這個DIPS編寫前述口語的程式腳本,讓程式自行互動,達成展演效果的自動變化。 我們的系統會接收來自展演人員穿配的連網感應器上的訊號,並且根據導演寫好的腳本規則,自動根據接收到的裝置訊號判斷出該指示虛擬環境做出什麼樣的效果,以達到展演效果自動變化,完成虛擬與實體展互動的程式支援。 為了減少腳本程式撰寫前須具備的程式邏輯訓練,本研究開發一款所見即所得(WYSIWYG)的視覺化腳本編輯器 DIPS Creator,提供腳本編寫者可以直覺的方式組合編輯器中的展演詞彙方塊,完成腳本設計。 本研究展示了如何以較為口語或展演語意的方式敘述展演規則,以實現虛實互動的程式化,並且提供了具有彈性的客製化展演函式庫及圖形化展演規則編輯器的製作方式,未來可增加多演員層次的抽象支援以展現本研究系統的更多程式化能力,並加入表演階段設計、雙向溝通與規則互斥等能力,擴充系統功能。 / This research was inspired by “The Future Circus”, a cyber-physical interactive performance art developed in National Chengchi University. In this thesis, we pro-pose some mechanisms to support such performance art programmatically in a more effective manner. Specially, we provide a high-level scripting tool for directors to de-scribe the performance rules abstractly in the form of “when ... otherwise ...”, so that directors can compose arbitrary actions and effects easily. Underlying such abstract rules are a domain specific language – Digital Interactive Performance Sketch (DIPS), and a middleware. Wearable Item Service runtime (WISE), developed by our research team. Given a script with those abstract rules, our system will receive signals sent from a sensor on wearable devices of actors, and then it will command cyber environment perform effects, the performance effects or actions according to rules written by the director. Through our integration efforts, the performance effects in the cyber environment will change automatically in a programmatic way. Besides, for users without prior scripting experience, we developed a WYSIWYG GUI editor, DIPS Creator, that allows users to write a script intuitively by dragging and dropping pre-built rule blocks. We conduct a few experiments with real sensor device to demonstrate the programming support of our tool. The preliminary results are satisfactory in terms of prototype support. To further extend our tool for practical performance, we describe in detail a few directions such as support for multiple actor performance stage model-ing, and integrity check of related rules that will make our system more powerful.
74

Effective reuse of coupling technologies for Earth System Models

Dunlap, Ralph S. 16 September 2013 (has links)
Designing and implementing coupled Earth System Models (ESMs) is a challenge for climate scientists and software engineers alike. Coupled models incorporate two or more independent numerical models into a single application, allowing for the simulation of complex feedback effects. As ESMs increase in sophistication, incorporating higher fidelity models of geophysical processes, developers are faced with the issue of managing increasing software complexity. Recently, reusable coupling software has emerged to aid developers in building coupled models. Effective reuse of coupling infrastructure means increasing the number of coupling functions reused, minimizing code duplication, reducing the development time required to couple models, and enabling flexible composition of coupling infrastructure with existing constituent model implementations. Despite the widespread availability of software packages that provide coupling infrastructure, effective reuse of coupling technologies remains an elusive goal: coupling models is effort-intensive, often requiring weeks or months of developer time to work through implementation details, even when starting from a set of existing software components. Coupling technologies are never used in isolation: they must be integrated with multiple existing constituent models to provide their primary services, such as model-to-model data communication and transformation. Unfortunately, the high level of interdependence between coupling concerns and scientific concerns has resulted in high interdependence between the infrastructure code and the scientific code within a model’s implementation. These dependencies are a source of complexity which tends to reduce reusability of coupling infrastructure. This dissertation presents mechanisms for increasing modeler productivity based on improving reuse of coupling infrastructure and raising the level of abstraction at which modelers work. This dissertation argues that effective reuse of coupling technologies can be achieved by decomposing existing coupling technologies into a salient set of implementation-independent features required for coupling high-performance models, increasing abstraction levels at which model developers work, and facilitating integration of coupling infrastructure with constituent models via component-based modularization of coupling features. The contributions of this research include: (1) a comprehensive feature model that identifies the multi-dimensional design space of coupling technologies used in high-performance Earth System Models, (2) Cupid, a domain-specific language and compiler for specifying coupling configurations declaratively and generating their implementations automatically, and (3) Component-based Coupling Operators (CC-Ops), a modular approach to code reuse of coupling infrastructure based on component technologies for high-performance scientific settings. The Cupid domain-specific language is evaluated by specifying a coupling configuration for an example fluid dynamics model and measuring the amount of code generated by the Cupid compiler compared to a hand coded version. The CC-Op approach is evaluated by implementing several CC-Ops using an existing high-performance component framework and measuring performance in terms of scalability and overhead.
75

Conception et mise en oeuvre d'une plate-forme pour la sûreté de fonctionnement des services Web

Salatgé, Nicolas 08 December 2006 (has links) (PDF)
Basés sur les protocoles XML, SOAP et WSDL, les Services Web (SW) sont la technologie de base pour le développement d'Architectures Orientées Services (AOS). Ces architectures permettent de mettre en place des applications faiblement couplées avec un fort degré de configuration dynamique. Elles se basent sur la notion de relation de "services" formalisée par un contrat qui unit le client et le prestataire de services. Ce contrat est le point charnière de ce type d'applications. D'un point de vue purement marketing, les Services Web peuvent être développés pour satisfaire les besoins des clients, être facile à maintenir et aussi fournir un haut niveau de qualité de service. Les prestataires de Services Web doivent s'assurer de la fiabilité et de la disponibilité de leur infrastructure individuelle de Services Web. Cependant, les prestataires ne peuvent pas tenir compte de tous les besoins possibles des clients et des contraintes liées au développement de l'application donnée. Cela signifie que des mécanismes additionnels doivent être développés et ciblés pour un contexte d'utilisation donné. C'est exactement le type de problèmes que j'ai examiné dans mes travaux. Les développeurs d'application regardent les Services Web comme des COTS (Component Off-The Shell) et ignorent donc leurs implémentations et leurs comportements en présence de fautes. De ce point de vue, les clients ont besoin de développer des mécanismes de tolérances aux fautes spécifiques bien adaptés à leurs applications. Dans ce but, mes travaux de thèse m'ont conduit à proposer une plate-forme pour aider les clients à réaliser des connecteurs spécifiques de tolérance aux fautes (SFTC - Specifique Fault Tolerance Connectors) qui implémentent des filtres et autres techniques de détection d'erreurs (c.à.d des assertions exécutables) ainsi que des mécanismes de recouvrement qui sont déclenchés quand les Services Web ne satisfont plus les caractéristiques de sûreté demandées. De plus, le même Services Web peut être employé dans plusieurs applications orientées services avec différentes contraintes et peut donc tirer profit de plusieurs connecteurs (SFTCs). Le problème est similaire à l'utilisation des composants COTS dans les systèmes critiques de sûreté, et des travaux précédents ont déjà prouvé que des mécanismes tels que les wrappers étaient une solution possible. La différence dans le contexte des Architectures Orientées Services est que des wrappers prédéfinis ne peuvent pas être spécifiés pour satisfaire tous les besoins possibles. L'approche doit être plus adaptative pour permettre à des mécanismes de sûreté : 1) d'être définis au cas par cas pour une utilisation donnée du Service Web et 2) d'avoir une forte dynamique afin d'être modifiés selon les besoins. Ainsi, mes travaux de recherches ont permis de fournir aux développeurs d'Architectures Orientées Services: 1) un langage nommé DeWeL pour décrire les caractéristiques de sûreté de fonctionnement du connecteur et 2) l'infrastructure IWSD pour dynamiquement contrôler et exécuter les connecteurs dans des applications critiques. L'objectif final est de fournir aux développeurs d' Architectures Orientées Services une infrastructure et des outils capables de les aider à déployer des applications orientées services tolérants les fautes.
76

LWiSSy: uma linguagem espec?fica de dom?nio para modelagem de sistemas de redes de sensores e atuadores sem fio

Dantas, Priscilla Victor 28 September 2012 (has links)
Made available in DSpace on 2014-12-17T15:48:05Z (GMT). No. of bitstreams: 1 PriscillaVD_DISSERT.pdf: 2033070 bytes, checksum: 27c8a6f6a0e802c19b0f74553cc6db23 (MD5) Previous issue date: 2012-09-28 / The field of Wireless Sensor and Actuator Networks (WSAN) is fast increasing and has attracted the interest of both the research community and the industry because of several factors, such as the applicability of such networks in different application domains (aviation, civil engineering, medicine, and others). Moreover, advances in wireless communication and the reduction of hardware components size also contributed for a fast spread of these networks. However, there are still several challenges and open issues that need to be tackled in order to achieve the full potential of WSAN usage. The development of WSAN systems is one of the most relevant of these challenges considering the number of variables involved in this process. Currently, a broad range of WSAN platforms and low level programming languages are available to build WSAN systems. Thus, developers need to deal with details of different sensor platforms and low-level programming abstractions of sensor operational systems on one hand, and they also need to have specific (high level) knowledge about the distinct application domains, on the other hand. Therefore, in order to decouple the handling of these two different levels of knowledge, making easier the development process of WSAN systems, we propose LWiSSy (Domain Language for Wireless Sensor and Actuator Networks Systems), a domain specific language (DSL) for WSAN. The use of DSLs raises the abstraction level during the programming of systems and modularizes the system building in several steps. Thus, LWiSSy allows the domain experts to directly contribute in the development of WSANs without having knowledge on low level sensor platforms, and network experts to program sensor nodes to meet application requirements without having specific knowledge on the application domain. Additionally, LWiSSy enables the system decomposition in different levels of abstraction according to structural and behavioral features and granularities (network, node group and single node level programming) / As Redes de Sensores e Atuadores Sem Fio (RSASF) v?m emergindo rapidamente e t?m atra?do o interesse da comunidade de pesquisa e da ind?stria, gra?as a v?rios fatores, dentre eles a aplicabilidade desse tipo de rede nos mais diversos dom?nios de aplica??es (avia??o, engenharia civil, medicina, dentre outros). Al?m disso, avan?os na comunica??o sem fio e miniaturiza??o dos componentes de hardware tamb?m contribu?ram para a r?pida prolifera??o dessas redes. Apesar disso, ainda existem alguns desafios a serem transpostos a fim de se atingir o pleno potencial de utiliza??o das RSASF. Dentre estes, o desenvolvimento de sistemas de RSASF aparece como um dos mais relevantes atualmente, haja vista a quantidade de vari?veis envolvidas no processo de desenvolvimento. Atualmente, uma vasta gama de plataformas de RSASF e diversas linguagens de programa??o de baixo n?vel podem ser empregadas no desenvolvimento desses sistemas. Dessa forma, ? necess?rio que o desenvolvedor possua tanto conhecimento de baixo n?vel relativo ? plataforma da RSASF, quanto conhecimento espec?fico do dom?nio de cada uma das aplica??es presentes no sistema. A fim de efetuar o desacoplamento da utiliza??o destes conhecimentos durante o processo de desenvolvimento, de forma a facilitar tal processo, este trabalho prop?e LWiSSy (Domain Language for Wireless Sensor and Actuator Networks Systems), uma linguagem para modelagem de sistemas para RSASF baseada no uso de DSLs (Domain Specific Language). As DSLs, pelo fato de aumentarem o n?vel de abstra??o da programa??o e modularizarem a constru??o de sistemas em v?rias etapas, permitir?o que ambos os especialistas envolvidos (dom?nio e redes) possam contribuir diretamente durante o desenvolvimento do sistema e de maneira mais desacoplada do que ocorre atualmente. Al?m dos benef?cios supracitados, LWiSSy possibilitar? ainda a decomposi??o do sistema em diferentes n?veis de abstra??o, haja vista a necessidade de representar diferentes caracter?sticas (estrutural e comportamental) e granulosidades (programa??o em n?vel de rede, em n?vel de grupos de n?s e em n?vel de n?) em um ?nico sistema
77

A DSEL in C++ for lowest-order methods for diffusive problem on general meshes / Programmation générative appliquée au prototypage d'Applications performantes sur des architectures massivement parallèles pour l'approximation volumes finis de systèmes physiques complexes

Gratien, Jean-Marc 27 May 2013 (has links)
Les simulateurs industriels deviennent de plus en plus complexes car ils doivent intégrer de façon performante des modèles physiques complets et des méthodes de discrétisation évoluées. Leur mise au point nécessite de gérer de manière efficace la complexité des modèles physiques sous-jacents, la complexité des méthodes numériques utilisées, la complexité des services numériques de bas niveau nécessaires pour tirer parti des architectures matérielle modernes et la complexité liée aux langages informatiques. Une réponse partielle au problème est aujourd'hui fournie par des plate-formes qui proposent des outils avancés pour gérer de façon transparente la complexité liée au parallélisme. Cependant elles ne gèrent que la complexité du matériel et les services numériques de bas niveau comme l'algèbre linéaire. Dans le contexte des méthodes Éléments Finis (EF), l'existence d'un cadre mathématique unifié a permis d'envisager des outils qui permettent d'aborder aussi la complexité issue des méthodes numériques et celle liée aux problèmes physiques, citons, par exemple, les projets Freefem++, Getdp, Getfem++, Sundance, Feel++ et Fenics. Le travail de thèse a consisté à étendre cette approche aux méthodes d'ordre bas pour des systèmes d'EDPs, méthodes qui souffraient jusqu'à maintenant d'une absence d'un cadre suffisamment général permettant son extension à des problèmes différents. Des travaux récents ont résolue cette difficulté, par l'introduction d'une nouvelle classe de méthodes d'ordre bas inspirée par les éléments finis non conformes. Cette formulation permet d'exprimer dans un cadre unifié les schémas VF multi-points et les méthodes DFM/VFMH. Ce nouveau cadre a permis la mise au point d'un langage spécifique DSEL en C++ qui permet de développer des applications avec un haut niveau d'abstraction, cachant la complexité des méthodes numériques et des services bas niveau garanties de haute performances. La syntaxe et les techniques utilisées sont inspirée par celles de Feel++. Le DSEL a été développé à partir de la plate-forme Arcane, et embarqué dans le C++. Les techniques de DSEL permettent de représenter un problème et sa méthode de résolution avec une expression, parsée à la compilation pour générer un programme, et évaluée à l'exécution pour construire un système linéaire que l'on peut résoudre pour trouver la solution du problème. Nous avons mis au point notre DSEL à l'aide d'outils standard issus de la bibliothèque Boost puis l'avons validé sur divers problèmes académiques non triviaux tels que des problèmes de diffusion hétérogène et le problème de Stokes. Dans un deuxième temps, dans le cadre du projet ANR HAMM (Hybrid Architecture and Multiscale Methods), nous avons validé notre approche en complexifiant le type de méthodes abordées et le type d'architecture matérielle cible pour nos programmes. Nous avons étendu le formalisme mathématique sur lequel nous nous basons pour pouvoir écrire des méthodes multi-échelle puis nous avons enrichi notre DSEL pour pouvoir implémenter de telles méthodes. Afin de pouvoir tirer partie de façon transparente des performances de ressources issues d'architectures hybrides proposant des cartes graphiques de type GPGPU, nous avons mis au point une couche abstraite proposant un modèle de programmation unifié qui permet d'accéder à différents niveaux de parallélisme plus ou moins fin en fonction des spécificités de l'architecture matérielle cible. Nous avons validé cette approche en évaluant les performances de cas tests utilisant des méthodes multi-échelle sur des configurations variés de machines hétérogènes. Pour finir nous avons implémenté des applications variées de type diffusion-advection-réaction, de Navier-Stokes incompressible et de type réservoir. Nous avons validé la flexibilité de notre approche et la capacité qu'elle offre à appréhender des problèmes variés puis avons étudié les performances des diverses implémentations. / Industrial simulation software has to manage : the complexity of the underlying physical models, usually expressed in terms of a PDE system completed with algebraic closure laws, the complexity of numerical methods used to solve the PDE systems, and finally the complexity of the low level computer science services required to have efficient software on modern hardware. Nowadays, this complexity management becomes a key issue for the development of scientific software. Some frameworks already offer a number of advanced tools to deal with the complexity related to parallelism in a transparent way. However, all these frameworks often provide only partial answers to the problem as they only deal with hardware complexity and low level numerical complexity like linear algebra. High level complexity related to discretization methods and physical models lack tools to help physicists to develop complex applications. New paradigms for scientific software must be developed to help them to seamlessly handle the different levels of complexity so that they can focus on their specific domain. Generative programming, component engineering and domain-specific languages (either DSL or DSEL) are key technologies to make the development of complex applications easier to physicists, hiding the complexity of numerical methods and low level computer science services. These paradigms allow to write code with a high level expressive language and take advantage of the efficiency of generated code for low level services close to hardware specificities. In the domain of numerical algorithms to solve partial differential equations, their application has been up to now limited to Finite Element (FE) methods, for which a unified mathematical framework has been existing for a long time. Such kinds of DSL have been developed for finite element or Galerkin methods in projects like Freefem++, Getdp, Getfem++, Sundance, Feel++ and Fenics. A new consistent unified mathematical frame has recently emerged and allows a unified description of a large family of lowest-order methods. This framework allows then, as in FE methods, the design of a high level language inspired from the mathematical notation, that could help physicists to implement their application writing the mathematical formulation at a high level. We propose to develop a language based on that frame, embedded in the C++ language. Our work relies on a mathematical framework that enables us to describe a wide family of lowest order methods including multiscale methods based on lowest order methods. We propose a DSEL developed on top of Arcane platform, based on the concepts presented in the unified mathematical frame and on the Feel++ DSEL. The DSEL is implemented with the Boost.Proto library by Niebler, a powerful framework to build a DSEL in C++. We have proposed an extension of the computational framework to multiscale methods and focus on the capability of our approach to handle complex methods.Our approach is extended to the runtime system layer providing an abstract layer that enable our DSEL to generate efficient code for heterogeneous architectures. We validate the design of this layer by benchmarking multiscale methods. This method provides a great amount of independent computations and is therefore the kind of algorithms that can take advantage efficiently of new hybrid hardware technology. Finally we benchmark various complex applications and study the performance results of their implementations with our DSEL.
78

Uma abordagem apoiada por linguagens especificas de domínio para criação de linhas de produtos de software embarcado

Durelli, Rafael Serapilha 30 May 2011 (has links)
Made available in DSpace on 2016-06-02T19:05:51Z (GMT). No. of bitstreams: 1 3769.pdf: 7885518 bytes, checksum: 7723f0868651af930744610d4adb9ccb (MD5) Previous issue date: 2011-05-30 / Financiadora de Estudos e Projetos / Embedded systems have been used in a myriad of devices that are present in our daily lives, thereby the market for such sort of system has increased significantly over the last few years. These systems were once associated with low-level code, however, this is an outdated view of embedded systems technology. Although the current embedded systems are mostly composed of software, no systematic reuse technique is used in throughout their development. Thus, since previous successful experiences are not reused, forcing the developer to create some of the involved elements from the scratch, there is a considerable delay in the production of these systems. Due to the ever increasing complexity of embedded systems it is necessary to apply reuse techniques in order to lessen the effort needed to develop such systems. Within this context, software product lines (SPL) are reuse techniques that allow the creation of several systems belonging to a certain domain. SPL can be used to generate products of a specific domain that share common features but are each different in a specific way. Model-driven development is another reuse technique whose main objective is to reduce the semantic distance between the domain problem and its solution/implementation; thus, the developer does not need to direct interact with the solution source code, being able to focus on models and transforming those models in source code or yet other models. Based on these techniques, a process for the development of SPL in the domain of mobile robots was developed. In order to properly use the proposed process, a SPL called LegoMobileRobots Software Product Line (LMRSPL) was devised. Moreover, a domain specific language (DSL) was also developed. This DSL, called F2MoC, assists the application engineer in instantiating LMRSPL members. / Sistemas embarcados são utilizados em vários dispositivos que fazem parte da vida cotidiana, de modo que o mercado de tais sistemas tem crescido de maneira expressiva. Esses sistemas sempre foram associados com código de baixo nível, no entanto, essa visão está desatualizada. Nas aplicações embarcadas correntes o software é a principal parcela, embora nenhuma técnica sistemática de reuso seja utilizada para sua concepção. Desse modo ocorre um atraso considerável na produtividade dos sistemas, uma vez que experiências anteriores bem sucedidas não são reaproveitadas, sendo necessário que o desenvolvedor comece do zero toda vez que um software for desenvolvido. Com a crescente complexidade dos sistemas embarcados é necessário utilizar técnicas de reuso para diminuir o atrasado da produção de tais sistemas. Nesse contexto, Linha de Produtos de Software (LPS) é definida como uma técnica de reuso que permite a construção de vários sistemas pertencentes a um mesmo domínio. LPS é aplicável para a geração de produtos específicos de um domínio, mas que possuem um conjunto de características comuns e pontos de variabilidades bem definidos. O Desenvolvimento de Software Orientado a Modelos (do inglês Model-Driven Development - MDD) é outra técnica de reuso na qual tem como principal objetivo reduzir a distância semântica entre o problema do domínio e solução/implementação, fazendo com que o engenheiro não precise interagir diretamente como o código-fonte, podendo se concentrar em modelos que possuem maiores níveis de abstração e posteriormente realizar transformações Model-To-Code e/ou Model-To-Model. A partir dessas técnicas de reuso é introduzido um processo para o desenvolvimento de linhas de produtos de software no domínio de Robôs Moveis. A fim de utilizar o processo proposto foi desenvolvida uma LPS intitulada LegoRobosMoveis Linha de Produtos de Software (LRMLPS). Adicionalmente, foi desenvolvida uma linguagem especifica de domínio denominada F2MoC que auxilia o engenheiro de aplicação na instanciação automática de membros da LRMLPS.
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RestMDD: Ambiente colaborativo para o apoio no desenvolvimento de serviços Web RESTful / RestMDD: collaborative environment to support the development of RESTful web services

Robson Vinicius Vieira Sanchez 02 September 2013 (has links)
Na ultima década o paradigma de computação orientada a serviços (SOC - Service Oriented Computing) tem ganhado cada vez mais espaço na indústria e na academia, a fim de solucionar o problema da falta de comunicação entre os diversos sistemas de informação presentes dentro de um ambiente corporativo. Graças aos recentes avanços da chamada \"Web 2.0\" um novo estilo arquitetural chamado de Arquitetura orientada a Web (WOA - Web Oriented Architecture) foi proposto a fim de garantir uma maneira simples de conectar os componentes de software dinamicamente. Esse estilo tem como um dos princípios o uso de serviços Web RESTful, a fim de conseguir uma interface funcional simples e uniforme. Este trabalho apresenta um ambiente colaborativo de apoio ao desenvolvimento de serviços Web RESTful utilizando o paradigma de desenvolvimento orientado a modelos (MDD - Model Driven Development). Pretende-se mostrar os benefícios do MDD aplicado a Engenharia Web e também as vantagens apresentadas pela colaboração nesse cenário. Foi realizado ainda um experimento a fim de comprovar a eficiência do ambiente colaborativo e benefícios alcançados por ele / In the last decade the paradigm of Service Oriented Computing has gained more attention in industry and academia in order to solve the problem of lack of communication between different information systems present within a corporate environment. Due to recent advances in Web 2.0 a new architectural style called Web Oriented Architecture is proposed to ensure a simple way to connect software components dynamically. This style has as a principle the use of RESTful Web Services in order to achieve a uniform interface simple and functional. This paper presents a collaborative environment to support the development of RESTful Web Services using the Model Driven Development paradigm. It is intended to show the benefits of MDD applied to Web Engineering and also the advantages presented by collaboration in this scenario. It was also performed a experiment to prove the efficiency of the collaborative environment and benefits achieved by the same
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雲端多租戶互動展演平台的設計與實作 / Design and Implementation of a Multi-tenant Cloud Platform for Cyber-Physical Interactive Performance Art

王佑霖, Wang, You Lin Unknown Date (has links)
傳統展演中,觀眾和表演者被視為是兩個獨立的個體,表演者與表演者間及表演者與觀眾間互動不多,若使用穿戴式裝置結合科技與藝術的「虛實互動數位展演」,能協助營造現場的互動氣氛,是既新穎又富有創意的表演模式,還能結合故事劇情與觀眾互動,此種互動的情境氛圍,會比一般的資訊傳遞更容易讓觀眾有所感受。 而目前許多表演活動的展演特效系統,都是由特效控制技術人員根據展演人員的動作與節目進程來呈現。如果由展演人員自行操作、建置與管理的話,便需要瞭解特效控制的相關技術,此外也需要和技術人員互相溝通與合作。而彼此觀念、資訊與背景的不同,難免容易造成控制上的失誤、延遲或是溝通不良導致表演效果不佳以致於觀眾不好的視聽感受。基於上述問題,本研究將設計一個基於多租戶概念的雲端互動展演系統整合平台,展演人員只需透過網路連結至展演系統網站,配合連網感應器的穿戴式裝置,不需自行建置、管理系統平台,登入後可依個人需求使用直覺圖形化邏輯編輯器,使用滑鼠拖拉,控制需求,不需繁複的技術教學訓練,便根據穿戴式裝置回傳的感測訊號做出響應式的展演效果變化,達到展演人員可簡單好上手地自行操作展演特效系統,減少與特效控制技術人員合作上的失誤。 / In traditional performance art, viewers and performers are regarded as two independent individuals. There is less interaction between performers and performers, performers and audiences. If wearable devices are used in the "cyber-physical interactive digital performance art", it can help create an interactive atmosphere in the scene. It is a creative, innovative mode of performance, and it also creates a combination between scenario and the interaction of the audiences. The interactive atmosphere is easier for the audience to be affected than ordinary information transmission. Currently, many special effects are presented by the technical staff. They are based on the performers and progression of show. If the special effects are managed by the performer-selves, they need to understand the relative technologies. In addition, they have to cooperate and communicate with technical staff. However, the difference of concept and background between each other, it's hard to avoid the mistake, delay, or misunderstanding of control. It may cause that the poor performance bring audience about the bad auditory and visual feeling. According to above issues, this study will design and implement a multi-tenant cloud platform for cyber-physical interactive performance art. The performers just connect to the performance art system website via the Internet, with the wearable device, and they do not need to set up and manage system platform by themselves. They log in the website, with the GUI editor, and use mouse to control demand. Without complex technical training, the variety of special effects are presented which based on the wearable device’s signal. We suppose that the platform makes the performers operate special effects system by themselves simply and easily. It also reduces the misunderstanding with the technical staff.

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