CENELEC EN 50128 and IEC 62279 standards are applicable to the performance of software in the railway sector. The 2011 version of the 50128 standard firms up the techniques and methods to be implemented. This is a guide to its implementation, in order to understand the foundations of the standard and how it impacts on the activities to be undertaken, helping towards better a preparation for the independent evaluation phase, which is mandatory.

CENELEC EN 50128 and IEC 62279 standards are applicable to the performance of software in the railway sector. The 2011 version of the 50128 standard firms up the techniques and methods to be implemented. This is a guide to its implementation, in order to understand the foundations of the standard and how it impacts on the activities to be undertaken, helping towards better a preparation for the independent evaluation phase, which is mandatory.

Certifiable Software Applications 3: Downward Cycle describes the descending phase of the creation of a software application, detailing specification phases, architecture, design and coding, and important concepts on modeling and implementation. For coding, code generation and/or manual code production strategies are explored. As applications are coded, a presentation of programming languages and their impact on certifiability is included. - Describes the descending phase of the creation of a software application, detailing specification phases, architecture, design and coding - Presents valuable programming examples - Includes a presentation of programming languages and their impact on certifiability

Certifiable Software Applications 2: Support Processes explains the process to achieve a certifiable application. This concerns several major topics, skill management, data preparation, requirement management, software verification, and software validation. In addition, analysis of the impact of the use of COTS and pre-existing software on certifiable software is presented. Finally, the last support process concerns the management of commercial tools, the creation of a specific tools, and therefore the qualification of tools, which is based on their impact on the final software. - Explains configuration management, management of anomalies, skills management, and quality control - Discusses the major topics of skill management, data preparation, requirement management, software verification, and software validation - Presents tactics for the management of commercial tools and the creation of a specific tool which is based on their impact on the final software

A review of the principles of the safety of software-based equipment, this book begins by presenting the definition principles of safety objectives. It then moves on to show how it is possible to define a safety architecture (including redundancy, diversification, error-detection techniques) on the basis of safety objectives and how to identify objectives related to software programs. From software objectives, the authors present the different safety techniques (fault detection, redundancy and quality control). “Certifiable system” aspects are taken into account throughout the book. Contents 1. Safety Management. 2. From System to Software. 3. Certifiable Systems. 4. Risk and Safety Levels. 5. Principles of Hardware Safety. 6. Principles of Software Safety. 7. Certification. About the Authors Jean-Louis Boulanger is currently an Independent Safety Assessor (ISA) in the railway domain focusing on software elements. He is a specialist in the software engineering domain (requirement engineering, semi-formal and formal method, proof and model-checking). He also works as an expert for the French notified body CERTIFER in the field of certification of safety critical railway applications based on software (ERTMS, SCADA, automatic subway, etc.). His research interests include requirements, software verification and validation, traceability and RAMS with a special focus on SAFETY.

Le domaine ferroviaire est soumis à un référentiel normatif et à un référentiel légal qui dépend des pays. La norme CENELEC 50128 et sa version internationale CEI 62279 sont nécessaires à la réalisation d’applications logicielles. Cet ouvrage est consacré à la version 2011 de la norme CENELEC 50128, qui durcit les techniques et les méthodes à mettre en œuvre et met l’accent sur la gestion des compétences et la mise en place d’une évaluation indépendante. Elle insiste également sur la nécessité de disposer d’outils qualifiés, d’une organisation avec les bonnes indépendances et d’un pôle de vérification efficace. Cette version de la norme introduit la réalisation de deux types de logiciels, les logiciels paramétrés et les logiciels dits génériques. Véritable guide de mise en application permettant la compréhension des fondements de la norme et des impacts sur les activités à réaliser, ce livre permet de préparer au mieux la phase obligatoire d’évaluation indépendante.

Until the late 1980s, information processing was associated with large mainframe computers and huge tape drives. During the 1990s, this trend shifted toward information processing with personal computers, or PCs. The trend toward miniaturization continues and in the future the majority of information processing systems will be small mobile computers, many of which will be embedded into larger products and interfaced to the physical environment. Hence, these kinds of systems are called embedded systems. Embedded systems together with their physical environment are called cyber-physical systems. Examples include systems such as transportation and fabrication equipment. It is expected that the total market volume of embedded systems will be significantly larger than that of traditional information processing systems such as PCs and mainframes. Embedded systems share a number of common characteristics. For example, they must be dependable, efficient, meet real-time constraints and require customized user interfaces (instead of generic keyboard and mouse interfaces). Therefore, it makes sense to consider common principles of embedded system design. Embedded System Design starts with an introduction into the area and a survey of specification models and languages for embedded and cyber-physical systems. It provides a brief overview of hardware devices used for such systems and presents the essentials of system software for embedded systems, like real-time operating systems. The book also discusses evaluation and validation techniques for embedded systems. Furthermore, the book presents an overview of techniques for mapping applications to execution platforms. Due to the importance of resource efficiency, the book also contains a selected set of optimization techniques for embedded systems, including special compilation techniques. The book closes with a brief survey on testing. Embedded System Design can be used as a text book for courses on embedded systems and as a source which provides pointers to relevant material in the area for PhD students and teachers. It assumes a basic knowledge of information processing hardware and software. Courseware related to this book is available at http://ls12-www.cs.tu-dortmund.de/~marwedel.