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Developpement A Objet Temps Reel
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Download or read book UML for Real written by Luciano Lavagno and published by Springer Science & Business Media. This book was released on 2007-05-08 with total page 376 pages. Available in PDF, EPUB and Kindle. Book excerpt: The complexity of most real-time and embedded systems often exceeds that of other types of systems since, in addition to the usual spectrum of problems inherent in software, they need to deal with the complexities of the physical world. That world—as the proverbial Mr. Murphy tells us—is an unpredictable and often unfriendly place. Consequently, there is a very strong motivation to investigate and apply advanced design methods and technologies that could simplify and improve the reliability of real-time software design and implementation. As a result, from the first versions of UML issued in the mid 1990’s, designers of embedded and real-time systems have taken to UML with vigour and enthusiasm. However, the dream of a complete, model-driven design flow from specification through automated, optimised code generation, has been difficult to realise without some key improvements in UML semantics and syntax, specifically targeted to the real-time systems problem. With the enhancements in UML that have been proposed and are near standardisation with UML 2. 0, many of these improvements have been made. In the Spring of 2003, adoption of a formalised UML 2. 0 specification by the members of the Object Management Group (OMG) seems very close. It is therefore very appropriate to review the status of UML as a set of notations for embedded real-time systems - both the state of the art and best practices achieved up to this time with UML of previous generations - and where the changes embodied in the 2.
Book Synopsis DEVELOPPEMENT A OBJET TEMPS REEL by : LAURENT.. RIOUX
Download or read book DEVELOPPEMENT A OBJET TEMPS REEL written by LAURENT.. RIOUX and published by . This book was released on 1997 with total page 208 pages. Available in PDF, EPUB and Kindle. Book excerpt: CETTE THESE CONTRIBUE A LA PROGRAMMATION ET AU CONTROLE DE L'EXECUTION D'APPLICATIONS TEMPS REEL ORIENTEES OBJET. L'UTILISATION D'OBJETS TEMPS REEL EST PARTICULIEREMENT INTERESSANTE POUR LA PROGRAMMATION DES APPLICATIONS TEMPS REEL ORIENTEES OBJET, CAR CE MODELE PERMET D'INTRODUIRE LA CONCURRENCE EN CONSERVANT LES PROPRIETES D'ENCAPSULATION, DE LA MODULARITE ET DE REUTILISABILITE, TOUT EN PRENANT EN COMPTE LES CONTRAINTES TEMPS REEL DE L'APPLICATION. L'UNE DES QUALITES ESSENTIELLES DE CETTE APPROCHE EST QU'ELLE PERMET LA SPECIFICATION DU PARALLELISME ET DES CONTRAINTES TEMPS REEL DIRECTEMENT AU NIVEAU DU MODELE ET LEUR MISE EN UVRE AUTOMATIQUE DANS L'APPLICATION. UN SYSTEME D'ANNOTATION DE C++ A ETE AINSI DEFINI QUI PERMET DE DECRIRE DANS LE SOURCE (OU LE MODELE) D'UNE APPLICATION SES SPECIFICATIONS TEMPS REEL. IL FOURNIRA AU SUPPORT D'EXECUTION LES DIFFERENTES INFORMATIONS QUI LUI PERMETTRONT DE LA CONTROLER AU MIEUX. AVEC CETTE APPROCHE DU MULTITACHE, NOUS DISTINGUERONS TROIS NIVEAUX DE CONTROLE : UN CONTROLE D'ETAT (DEFINISSANT SA CAPACITE A EFFECTUER UNE OPERATION), UN CONTROLE DE CONCURRENCE (ASSURANT LE MAINTIENT DE LA COHERENCE DES VALEURS DES ATTRIBUTS DE L'OBJET) ET UN CONTROLE D'ORDONNANCEMENT (EFFECTUANT L'ALLOCATION DES RESSOURCES PROCESSEURS EN FONCTION DES CONTRAINTES). L'ARCHITECTURE DE CONTROLE PROPOSEE, NOMMEE OROS, PERMET D'EFFECTUER LE CONTROLE DYNAMIQUE D'UNE APPLICATION EN PRENANT EN COMPTE CES DIFFERENTS TYPES DE CONTRAINTES. POUR PROFITER DU PARALLELISME DES NOUVELLES MACHINES, CETTE ARCHITECTURE MET L'ACCENT SUR LE PARALLELISME D'EXECUTION MAIS AUSSI DE CONTROLE. L'ARCHITECTURE OROS GERE AINSI L'ACCES AUX ATTRIBUTS DE CHAQUE OBJET DE MANIERE INDIVIDUELLE PERMETTANT AINSI DE PARALLELISER DES TRAITEMENTS QUI N'ACCEDENT PAS AUX MEMES DONNEES. CETTE ARCHITECTURE N'UTILISE QUE DES PRIMITIVES COMMUNES A L'ENSEMBLE DES SYSTEMES D'EXPLOITATION TEMPS REEL DU COMMERCE, CE QUI PERMET D'ASSURER LA FAISABILITE ET LA PORTABILITE.
Book Synopsis Développements logiciels en géomatique : innovations et mutualisation by : BUCHER Bénédicte
Download or read book Développements logiciels en géomatique : innovations et mutualisation written by BUCHER Bénédicte and published by Lavoisier. This book was released on 2012-06-07 with total page 306 pages. Available in PDF, EPUB and Kindle. Book excerpt: Un défi majeur pour l'homme est de se munir de représentations de l'espace dans lequel il vit qui dépassent la représentation que lui-même peut s'en construire afin d'agir en étant mieux informé. Ces représentations doivent être partageables afin que les décisions bénéficient d'une variété de points de vue. Alors que les cartes deviennent numériques et que leur analyse peut être partagée entre l'homme et l'ordinateur, demeurent des défis concernant la représentation des données numériques sur l'espace, l'acquisition et le traitement de ces données. Cet ouvrage présente des développements logiciels majeurs produits récemment en géomatique, discipline à la croisée de la géographie et de l'informatique et qui se concentre sur l'acquisition et le traitement des données sur l'espace. Il analyse les spécificités de ces logiciels en termes de motivations, de modélisation de l'information et de méthodes d'analyse. Les verrous associés à leur mutualisation sont également analysés et conduisent à des propositions pour une meilleure mutualisation des efforts de recherche et de développement en géomatique.
Book Synopsis Real Time Programming 1988 by : A. Crespo
Download or read book Real Time Programming 1988 written by A. Crespo and published by Elsevier. This book was released on 2014-05-23 with total page 99 pages. Available in PDF, EPUB and Kindle. Book excerpt: Digital computers are now used routinely in on-line control systems. As applications become more complex and costs of developing software rise, the need for good software tools becomes vital. This volume presents 14 papers on the most recent developments within real-time programming - languages for real-time programming, software development tools and the application of real-time systems within industry.
Download or read book OOIS’94 written by Dilip Patel and published by Springer Science & Business Media. This book was released on 2012-12-06 with total page 516 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains the papers presented at the Intemational Conference on Object Oriented Information Systems 00lS'94, held at South Bank University, London, December 19 - 21, 1994. In response to our call for papers, a total 85 papers from 24 different countries were submitted. Each paper was evaluated by at least two Program Committee members and an additional reviewer. Together, we selected 41 papers for presentation at the conference and inclusion in the Proceedings. Also included are the keynote addresses by Peter Gray and Michael Jackson. The other submissions were recommended for presentation in the poster sessions. Peter Gray, our invited speaker, evaluates the problems of object-oriented systems and data independence by looking at how object oriented database applications are failing to perceive its benefits, and instead rely too much on encapsulation. He suggests alternative kinds of object storage to preserve data independence. The second invited speaker, Michael Jackson describes a way of solving problems, by focusing directly on the problems themselves, their components and structures and on the relationships between the problem and the solution method. He discusses a particular view of the role of object-orientation in software development.
Download or read book Ada in Industry written by S. Heilbrunner and published by CUP Archive. This book was released on 1988-06-16 with total page 280 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Ada: The Design Choice by : Angel Alvarez
Download or read book Ada: The Design Choice written by Angel Alvarez and published by Cambridge University Press. This book was released on 1989-07-06 with total page 290 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book contains the proceedings of the 1989 Ada-Europe conference. These meetings constitute the most significant events in this field within Europe, and attract delegates from around the world. The theme of this year's conference is design methods; this is of major importance since both Ada compilers and the applications built with Ada are huge. Papers in this volume, which have all been carefully refereed, study the design methods within Ada, and how they may need to be augmented with additional methods and tools where necessary. They make informed and essential reading for all involved in the use of Ada in industry and research.
Book Synopsis The Unified Modeling Language. “UML”'98: Beyond the Notation by : Jean Bezivin
Download or read book The Unified Modeling Language. “UML”'98: Beyond the Notation written by Jean Bezivin and published by Springer. This book was released on 2004-06-30 with total page 452 pages. Available in PDF, EPUB and Kindle. Book excerpt: This volume contains mainly the revised versions of papers presented at the wo- shop '98, "Beyond the Notation", that took place in Mulhouse, France on June 3-4, 1998. We thank all those that have made this possible, and particularly all the people in Mulhouse that worked hard to make this meeting a success, with such a short delay between the announcement and the realization. We are specially grateful to Nathalie Gaertner, who put in a tremendous amount of effort in the initial preparation of the workshop. We were pleasantly surprised of the quality of the submitted material and of the level of the technical exchanges at the Mulhouse meeting. More than one hundred attendees, from about twenty different countries, representing the main actors in the UML research and development scene, gathered in Mulhouse for two full study days. We would like to express our deepest appreciation to the authors of submitted - pers, the editorial committee for this volume, the program committee for the initial workshop, the external referees, and many others who contributed towards the final contents of this volume. April 1999 Jean Bézivin Pierre-Alain Muller
Download or read book Real Time Programming written by and published by . This book was released on 1989 with total page 108 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information Technology Management and Organizational Innovations by : Mehdi Khosrowpour
Download or read book Information Technology Management and Organizational Innovations written by Mehdi Khosrowpour and published by IGI Global. This book was released on 1996-01-01 with total page 482 pages. Available in PDF, EPUB and Kindle. Book excerpt: Emerging information technologies of the past few decades are now providing organizations with new tools to develop innovative organizational concepts and applications. This book is a collection of timely research and practical papers on the subject of IT management and its role in organizational innovation.
Book Synopsis International Workshop Expert Systems & Their Applications by :
Download or read book International Workshop Expert Systems & Their Applications written by and published by . This book was released on 1988 with total page 438 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Robust object-based algorithms for direct shadow simulation by : Vincent Forest
Download or read book Robust object-based algorithms for direct shadow simulation written by Vincent Forest and published by . This book was released on 2010 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: En informatique graphique, les algorithmes de générations d'ombres évaluent la quantité de lumière directement perçue par une environnement virtuel. Calculer précisément des ombres est cependant coûteux en temps de calcul. Dans cette dissertation, nous présentons un nouveau système basé objet robuste, qui permet de calculer des ombres réalistes sur des scènes dynamiques et ce en temps interactif. Nos contributions incluent notamment le développement de nouveaux algorithmes de génération d'ombres douces ainsi que leur mise en oeuvre efficace sur processeur graphique. Nous commençons par formaliser la problématique du calcul d'ombres directes. Tout d'abord, nous définissons ce que sont les ombres directes dans le contexte général du transport de la lumière. Nous étudions ensuite les techniques interactives qui génèrent des ombres directes. Suite à cette étude nous montrons que mêmes les algorithmes dit physiquement réalistes se reposent sur des approximations. Nous mettons également en avant, que malgré leur contraintes géométriques, les algorithmes d'ombres basées objet sont un bon point de départ pour résoudre notre problématique de génération efficace et robuste d'ombres directes. Basé sur cette observation, nous étudions alors le système basé objet existant et mettons en avant ses problèmes de robustesse. Nous proposons une nouvelle technique qui améliore la qualité des ombres générées par ce système en lui ajoutant une étape de mélange de pénombres. Malgré des propriétés et des résultats convaincants, les limitations théoriques et de mise en oeuvre limite la qualité générale et les performances de cet algorithme. Nous présentons ensuite un nouvel algorithme d'ombres basées objet. Cet algorithme combine l'efficacité de l'approche basée objet temps réel avec la précision de sa généralisation au rendu hors ligne. Notre algorithme repose sur l'évaluation locale du nombre d'objets entre deux points : la complexité de profondeur. Nous décrivons comment nous utilisons cet algorithme pour échantillonner la complexité de profondeur entre les surfaces visibles d'une scène et une source lumineuse. Nous générons ensuite des ombres à partir de cette information soit en modulant l'éclairage direct soit en intégrant numériquement l'équation d'illumination directe. Nous proposons ensuite une extension de notre algorithme afin qu'il puisse prendre en compte les ombres projetées par des objets semi-opaque. Finalement, nous présentons une mise en oeuvre efficace de notre système qui démontre que des ombres basées objet peuvent être générées de façon efficace et ce même sur une scène dynamique. En rendu temps réel, il est commun de représenter des objets très détaillés encombinant peu de triangles avec des textures qui représentent l'opacité binaire de l'objet. Les techniques de génération d'ombres basées objet ne traitent pas de tels triangles dit "perforés". De par leur nature, elles manipulent uniquement les géométries explicitement représentées par des primitives géométriques. Nous présentons une nouvel algorithme basé objet qui lève cette limitation. Nous soulignons que notre méthode peut être efficacement combinée avec les systèmes existants afin de proposer un système unifié basé objet qui génère des ombres à la fois pour des maillages classiques et des géométries perforées. La mise en oeuvre proposée montre finalement qu'une telle combinaison fournit une solution élégante, efficace et robuste à la problématique générale de l'éclairage direct et ce aussi bien pour des applications temps réel que des applications sensibles à la la précision du résultat.
Book Synopsis Image Analysis by : Heikki Kalviainen
Download or read book Image Analysis written by Heikki Kalviainen and published by Springer Science & Business Media. This book was released on 2005-06-16 with total page 1289 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 14th Scandinavian Conference on Image Analysis, SCIA 2005, held in Joensuu, Finland in June 2005. The 124 papers presented together with 6 invited papers were carefully reviewed and selected from 236 submissions. The papers are organized in topical sections on image segmentation and understanding, color image processing, applications, theory, medical image processing, image compression, digitalization of cultural heritage, computer vision, machine vision, and pattern recognition.
Book Synopsis Fourth International Conference on Software Engineering and Knowledge Engineering by :
Download or read book Fourth International Conference on Software Engineering and Knowledge Engineering written by and published by . This book was released on 1992 with total page 664 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Information Control Problems in Manufacturing Technology 1992 by : M.B. Zaremba
Download or read book Information Control Problems in Manufacturing Technology 1992 written by M.B. Zaremba and published by Elsevier. This book was released on 2016-02-25 with total page 517 pages. Available in PDF, EPUB and Kindle. Book excerpt: These proceedings contain more than 80 of the best papers presented at the INCOM '92 Symposium, and relate to the vast changes which are occurring worldwide in manufacturing technology. Research oriented technical papers cover subjects such as: simulation of manufacturing processes; sensor based robots; information systems; general aspects of CIM and manufacturing networks.
Author : Publisher :Editions Bréal ISBN 13 :2749525683 Total Pages :225 pages Book Rating :4.7/5 (495 download)
Download or read book written by and published by Editions Bréal. This book was released on with total page 225 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Object-oriented Analysis and Simulation by : David R. C. Hill
Download or read book Object-oriented Analysis and Simulation written by David R. C. Hill and published by Addison Wesley Longman. This book was released on 1996 with total page 320 pages. Available in PDF, EPUB and Kindle. Book excerpt: Following an extensive study of the major OO Analysis and Design techniques, the author illustrates a modeling method adapted to simulation and shows how this can be translated to industrial and research applications, including automatic simulation code generation for the simulation and animation of manufacturing systems.
