Download or read book L int r t de la validation des syst mes informatis s pour l int grit des donn es written by Margaux Hatt and published by . This book was released on 2022 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Conception et validation de syst mes informatiques haute s ret de fonctionnement written by Eric Pilaud and published by . This book was released on 1982 with total page 199 pages. Available in PDF, EPUB and Kindle. Book excerpt: Un système de description des calculateurs à haute sûreté de fonctionnement est proposé et appliqué à des calculateurs existants. Cette description nous conduit à proposer une démarche de conception devant faciliter la validation. Une methode d'évaluation de la sûreté de fonctionnement, destinée à fournir des évaluations pour la certification, est ensuite étudiée. Elle s'appuie sur une démarche non optimiste et permet de prendre en compte certains paramètres difficilement quantifiables (latence d'erreur par exemple). Les deux aspects de cette étude, conception et évaluation, sont appliqués à un calculateur tolérant les pannes développées dans le cadre de ce travail. (CARL)

Download or read book M thodologie de validation des syst mes informatis s appliqu e une base de donn es de gestion de r clamations written by Wivine Olela and published by . This book was released on 2013 with total page 180 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book System Validation and Verification written by Jeffrey O. Grady and published by CRC Press. This book was released on 1997-11-25 with total page 356 pages. Available in PDF, EPUB and Kindle. Book excerpt: Historically, the terms validation and verification have been very loosely defined in the system engineering world, with predictable confusion. Few hardware or software testing texts even touch upon validation and verification, despite the fact that, properly employed, these test tools offer system and test engineers powerful techniques for identifying and solving problems early in the design process. Together, validation and verification encompass testing, analysis, demonstration, and examination methods used to determine whether a proposed design will satisfy system requirements. System Validation and Verification clear definitions of the terms and detailed information on using these fundamental tools for problem solving. It smoothes the transition between requirements and design by providing methods for evaluating the ability of a given approach to satisfy demanding technical requirements. With this book, system and test engineers and project managers gain confidence in their designs and lessen the likelihood of serious problems cropping up late in the program. In addition to explanations of the theories behind the concepts, the book includes practical methods for each step of the process, examples from the author's considerable experience, and illustrations and tables to support the ideas. Although not primarily a textbook, System Validation and Verification is based in part on validation and verification courses taught by the author and is an excellent supplemental reference for engineering students. In addition to its usefulness to system engineers, the book will be valuable to a wider audience including manufacturing, design, software , and risk management project engineers - anyone involved in large systems design projects.

Download or read book Validation and Verification of Knowledge Based Systems written by Anca Vermesan and published by Springer Science & Business Media. This book was released on 2013-04-17 with total page 363 pages. Available in PDF, EPUB and Kindle. Book excerpt: Knowledge-based (KB) technology is being applied to complex problem-solving and critical tasks in many application domains. Concerns have naturally arisen as to the dependability of knowledge-based systems (KBS). As with any software, attention to quality and safety must be paid throughout development of a KBS and rigorous verification and validation (V&V) techniques must be employed. Research in V&V of KBS has emerged as a distinct field only in the last decade and is intended to address issues associated with quality and safety aspects of KBS and to credit such applications with the same degree of dependability as conventional applications. In recent years, V&V of KBS has been the topic of annual workshops associated with the main AI conferences, such as AAAI, IJACI and ECAI. Validation and Verification of Knowledge Based Systems contains a collection of papers, dealing with all aspects of KBS V&V, presented at the Fifth European Symposium on Verification and Validation of Knowledge Based Systems and Components (EUROVAV'99 - which was held in Oslo in the summer of 1999, and was sponsored by Det Norske Veritas and the British Computer Society's Specialist Group on Expert Systems (SGES).

Download or read book Mise en oeuvre de la m thode B Trait RTA s rie Informatique et Syst mes d Information written by BOULANGER Jean-Louis and published by Lavoisier. This book was released on 2013-04-01 with total page 434 pages. Available in PDF, EPUB and Kindle. Book excerpt: La mise en place d’un logiciel sans défaut reste primordiale pour plusieurs domaines qui requièrent des applications dites de sécurité comme les transports. La réalisation d’un modèle formel est l’approche la plus efficace pour atteindre l'objectif du zéro défaut, que ce soit en termes de temps ou de maîtrise de la complexité. Ce modèle permet d’analyser et de vérifier le comportement d’un logiciel. Cet ouvrage présente la méthode B, une méthode formelle s’appuyant sur la preuve de propriétés qui, sur la base d’une spécification et de la notion de raffinement, permet d’aller jusqu’à la production automatique de code. Différents outils découlant de cette méthode ainsi que des exemples concrets d’utilisations industrielles de différentes tailles sont aussi exposés dans des domaines tels que l’avionique ou les systèmes manufacturiers.

Download or read book Verification and Validation in Systems Engineering written by Mourad Debbabi and published by Springer Science & Business Media. This book was released on 2010-11-16 with total page 261 pages. Available in PDF, EPUB and Kindle. Book excerpt: At the dawn of the 21st century and the information age, communication and c- puting power are becoming ever increasingly available, virtually pervading almost every aspect of modern socio-economical interactions. Consequently, the potential for realizing a signi?cantly greater number of technology-mediated activities has emerged. Indeed, many of our modern activity ?elds are heavily dependant upon various underlying systems and software-intensive platforms. Such technologies are commonly used in everyday activities such as commuting, traf?c control and m- agement, mobile computing, navigation, mobile communication. Thus, the correct function of the forenamed computing systems becomes a major concern. This is all the more important since, in spite of the numerous updates, patches and ?rmware revisions being constantly issued, newly discovered logical bugs in a wide range of modern software platforms (e. g. , operating systems) and software-intensive systems (e. g. , embedded systems) are just as frequently being reported. In addition, many of today’s products and services are presently being deployed in a highly competitive environment wherein a product or service is succeeding in most of the cases thanks to its quality to price ratio for a given set of features. Accordingly, a number of critical aspects have to be considered, such as the ab- ity to pack as many features as needed in a given product or service while c- currently maintaining high quality, reasonable price, and short time -to- market.

Download or read book Validation des syst mes informatis s written by Romain Michaut and published by . This book was released on 2002 with total page 170 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book M thodologie de la validation des syst mes informatis s et application un outil de gestion des pes es written by Claire Granier and published by . This book was released on 2005 with total page 132 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book VALIDATION PROBABILISTE DES SYSTEMES SECURITAIRES OU DISTRIBUES MODELISES EN TERMES DE RESEAUX DE PETRI STOCHASTIQUES written by CELINE.. FRAIZE CHAKAR and published by . This book was released on 1993 with total page pages. Available in PDF, EPUB and Kindle. Book excerpt: LA VALIDATION DE SYSTEMES INFORMATIQUES COMPLEXES ET EN PARTICULIER DE SYSTEMES SECURITAIRES OU DISTRIBUES EST INDISPENSABLE DANS UNE OPTIQUE DE SURETE DE FONCTIONNEMENT DE CES SYSTEMES. LES APPROCHES REPOSANT SUR UNE ANALYSE EXHAUSTIVE SE HEURTENT RAPIDEMENT AU CARACTERE COMBINATOIRE DU PROBLEME. LES TECHNIQUES BASEES SUR LA SIMULATION DES SPECIFICATIONS SONT PLUS AISEES A APPLIQUER, MAIS NE CONSTITUENT PAS UNE PREUVE. LE BUT DE NOTRE TRAVAIL EST DE DEVELOPPER UNE NOUVELLE TECHNIQUE DE VALIDATION: LA VALIDATION PROBABILISTE. L'APPROCHE REPOSE SUR UNE DESCRIPTION PRECISE DU COMPORTEMENT TEMPOREL DU SYSTEME ET A POUR OBJECTIF DE DEMONTRER QUE DES ASSERTIONS DE BON FONCTIONNEMENT DEFINIES SUR UN MODELE SONT VERIFIEES, DURANT LA VIE OPERATIONNELLE DU SYSTEME, AVEC UN SEUIL DE PROBABILITE SUFFISANT. LE SYSTEME A VALIDER EST MODELISE PAR UN RESEAU DE PETRI STOCHASTIQUE. L'ANALYSE REPOSE SUR UNE EXPLORATION PARTIELLE DU GRAPHE DES MARQUAGES ACCESSIBLES. CETTE APPROCHE TEND A ATTEINDRE LE PLUS RAPIDEMENT POSSIBLE DES ETATS NE VERIFIANT PAS LES ASSERTIONS DE BON FONCTIONNEMENT SPECIFIEES. DANS CHAQUE MARQUAGE, UN SYSTEME DE DECISION (EN FAIT UN PROGRAMME LINEAIRE) PERMET DE SELECTIONNER LES TRANSITIONS SUSCEPTIBLES DE CONDUIRE A DE TELS ETATS, GUIDANT AINSI L'EXPLORATION DU GRAPHE. L'EXPLORATION S'ARRETE LORSQU'UNE PRECISION SUFFISANTE SUR LES PROBABILITES D'ATTEINTE EST OBTENUE. DEUX ALGORITHMES BASES SUR CES PRINCIPES ONT ETE DEVELOPPES ET APPLIQUES A LA VALIDATION PROBABILISTE DU PROTOCOLE D'APPEL DE PROCEDURE DISTANTE DU SYSTEME D'EXPLOITATION REPARTI CHORUS. L'ASSERTION DE BON FONCTIONNEMENT SPECIFIEE EST LE RESPECT DE LA SEMANTIQUE AU PLUS UNE FOIS (UNE REQUETE D'UN CLIENT EST TRAITEE AU PLUS UNE FOIS PAR LE SERVEUR). NOUS MONTRONS QU'IL N'EST POSSIBLE DE GARANTIR CETTE SEMANTIQUE QU'AVEC UNE CERTAINE PROBABILITE, LIEE NOTAMMENT A L'INCERTITUDE DES DELAIS DE TRANSMISSION DES MESSAGES

Download or read book Validation de sp cifications de syst mes d information avec Alloy written by Mohammed Ouenzar and published by . This book was released on 2013 with total page 107 pages. Available in PDF, EPUB and Kindle. Book excerpt:

Download or read book Expression et validation des propri t s de s curit logique et physique pour les syst mes informatiques critiques written by Jean-Louis Boulanger and published by . This book was released on 2006 with total page 214 pages. Available in PDF, EPUB and Kindle. Book excerpt: Dans le cadre de nos activités de recherche, nous nous sommes intéressés à la mise en sécurité des systèmes dits critiques (pouvant en cas de défaillance causer des dommages sérieux aux personnes ou aux biens). La mise en sécurité de tels systèmes passe par l'expression de recommandations liées à la sécurité. Ces recommandations peuvent provenir d'une demande du client (clauses du cahier des charges), de l'état de l'art, d'un référentiel légal (normes, décrets, arrêtés,..) ou d'études sur les conséquences des défaillances du système sur l'environnement, les personnes, l'image de marque de l'entreprise, etc. À partir des recommandations introduites dans le cahier des charges du client, il est donc possible d'identifier des "exigences". Il faudra alors démontrer que ces exigences sont prises en compte sur l'ensemble du cycle de réalisation du système. Dans le cadre de cette thèse, nous proposons une méthode et des exemples de mise en œuvre qui se basent sur l'identification, l'expression et la vérification des exigences liées à la sécurité.

Download or read book Safety of Computer Architectures written by Jean-Louis Boulanger and published by John Wiley & Sons. This book was released on 2013-01-09 with total page 371 pages. Available in PDF, EPUB and Kindle. Book excerpt: It is currently quite easy for students or designers/engineers to find very general books on the various aspects of safety, reliability and dependability of computer system architectures, and partial treatments of the elements that comprise an effective system architecture. It is not so easy to find a single source reference for all these aspects of system design. However, the purpose of this book is to present, in a single volume, a full description of all the constraints (including legal contexts around performance, reliability norms, etc.) and examples of architectures from various fields of application, including: railways, aeronautics, space, automobile and industrial automation. The content of the book is drawn from the experience of numerous people who are deeply immersed in the design and delivery (from conception to test and validation), safety (analysis of safety: FMEA, HA, etc.) and evaluation of critical systems. The involvement of real world industrial applications is handled in such as a way as to avoid problems of confidentiality, and thus allows for the inclusion of new, useful information (photos, architecture plans/schematics, real examples).

Download or read book La qualit et la gouvernance des donn es au service de la performance des entreprises written by BERTI-EQUILLE Laure and published by Lavoisier. This book was released on 2012-09-14 with total page 402 pages. Available in PDF, EPUB and Kindle. Book excerpt: La bonne qualité des données est aujourd'hui la clé de voûte de toute organisation. La gestion et l'amélioration de cette qualité sont des tâches coûteuses et difficiles, mais néanmoins incontournables. Cet ouvrage propose une étude des différents outils et démarches qui assistent les spécialistes de la qualité et de la gouvernance des données. À travers les expériences de la communauté francophone animée par l'association ExQI (Excellence Qualité, Information), il présente, avec pédagogie et pragmatisme, un panorama des concepts-clés de la gestion de la qualité des données et leurs déclinaisons dans les entreprises (Business Intelligence, Data QualityManagement, Key Performance Indicator, Model Driven Engineering, Master Data Management, etc.). Des solutions théoriques et techniques performantes sont détaillées et de nombreux retours d'expérience permettent d'illustrer les bonnes pratiques à adopter. Mêlant contributions industrielles et académiques, cet ouvrage est un outil de référence en langue française sur la qualité et la gouvernance des données en entreprise.

Download or read book Sur la validation de la s ret de fonctionnement par mutation written by Pascal Traverse and published by . This book was released on 1983 with total page 120 pages. Available in PDF, EPUB and Kindle. Book excerpt: CE MEMOIRE EST CONSACRE A LA CONCEPTION D'UN OUTIL D'INJECTION D'ERREURS, DESTINE A LA VALIDATION PAR MUTATION DE SYSTEMES INFORMATIQUES SURS DE FONCTIONNEMENT. L'ETUDE MONTRE QUE LA PRISE EN COMPTE D'UN LARGE SPECTRE DE FAUTES DEMANDE UNE FORTE SYNCHRONISATION ENTRE L'INJECTEUR ET LE SYSTEME CIBLE

Download or read book Verification and Analysis of Computer Systems written by Henry Skinner and published by NY Research Press. This book was released on 2023-09-19 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: Computer system verification is an activity that involves assessing the consistency, completeness, and correctness of the software and its supporting documentation while it is being developed. It confirms and reviews the tasks within the computer system validation process. Computer system validation (CSV), or software validation, is the process for verifying that a computer system is able to perform its intended use, and can function as expected. The classic "V Diagram" is the most common methodology used for validation projects. This methodology involves various stages, namely, validation planning, user requirements specification (URS), functional specifications, design specifications, system build, installation qualification tests (IQ) Tests, operational qualification (OQ) Tests, performance qualification (PQ) Tests, and reporting. This book aims to shed light on the verification and analysis of computer systems. It consists of contributions made by international experts. This book, with its detailed analyses and data, will prove immensely beneficial to professionals and students involved in this area of computer science at various levels.

Download or read book Tools and Algorithms for the Construction and Analysis of Systems written by Susanne Graf and published by Springer. This book was released on 2003-06-29 with total page 570 pages. Available in PDF, EPUB and Kindle. Book excerpt: This book constitutes the refereed proceedings of the 6th International Conference on Tools and Algorithms for the Construction and Analysis of Systems, TACAS 2000, held as part of ETAPS 2000 in Berlin, Germany, in March/April 2000. The 33 revised full papers presented together with one invited paper and two short tool descriptions were carefully reviewed and selected from a total of 107 submissions. The papers are organized in topical sections on software and formal methods, formal methods, timed and hybrid systems, infinite and parameterized systems, diagnostic and test generation, efficient model checking, model-checking tools, symbolic model checking, visual tools, and verification of critical systems.