Reliability, Quality and Safety of Software-Intensive Systems

Reliability, Quality and Safety of Software-Intensive Systems PDF

Author: Dimitris Gritzalis

Publisher: Springer

Published: 2013-03-09

Total Pages: 276

ISBN-13: 0387350977

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It is, indeed, widely acceptable today that nowhere is it more important to focus on the improvement of software quality than in the case of systems with requirements in the areas of safety and reliability - especially for distributed, real-time and embedded systems. Thus, much research work is under progress in these fields, since software process improvement impinges directly on achieved levels of quality, and many application experiments aim to show quantitative results demonstrating the efficacy of particular approaches. Requirements for safety and reliability - like other so-called non-functional requirements for computer-based systems - are often stated in imprecise and ambiguous terms, or not at all. Specifications focus on functional and technical aspects, with issues like safety covered only implicitly, or not addressed directly because they are felt to be obvious; unfortunately what is obvious to an end user or system user is progressively less so to others, to the extend that a software developer may not even be aware that safety is an issue. Therefore, there is a growing evidence for encouraging greater understanding of safety and reliability requirements issues, right across the spectrum from end user to software developer; not just in traditional safety-critical areas (e.g. nuclear, aerospace) but also acknowledging the need for such things as heart pacemakers and other medical and robotic systems to be highly dependable.

Safety and Reliability of Software Based Systems

Safety and Reliability of Software Based Systems PDF

Author: Roger Shaw

Publisher: Springer Science & Business Media

Published: 2012-12-06

Total Pages: 474

ISBN-13: 144710921X

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Safety and Reliability of Software Based Systems contains papers, presented at the twelfth annual workshop organised by the Centre for Software Reliability. Contributions come from different industries in many countries, and provide discussion and cross-fertilisation of ideas relevant to systems whose safety and/or reliability are of paramount concern. This book discusses safety cases and their varying roles in different industries; using measurement to improve reliability and safety of software-based systems; latest developments in managing, developing and assessing software intensive systems where reliability and/or safety are important considerations; and practical experiences of others in industry.

Designing Data-Intensive Applications

Designing Data-Intensive Applications PDF

Author: Martin Kleppmann

Publisher: "O'Reilly Media, Inc."

Published: 2017-03-16

Total Pages: 658

ISBN-13: 1491903104

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Data is at the center of many challenges in system design today. Difficult issues need to be figured out, such as scalability, consistency, reliability, efficiency, and maintainability. In addition, we have an overwhelming variety of tools, including relational databases, NoSQL datastores, stream or batch processors, and message brokers. What are the right choices for your application? How do you make sense of all these buzzwords? In this practical and comprehensive guide, author Martin Kleppmann helps you navigate this diverse landscape by examining the pros and cons of various technologies for processing and storing data. Software keeps changing, but the fundamental principles remain the same. With this book, software engineers and architects will learn how to apply those ideas in practice, and how to make full use of data in modern applications. Peer under the hood of the systems you already use, and learn how to use and operate them more effectively Make informed decisions by identifying the strengths and weaknesses of different tools Navigate the trade-offs around consistency, scalability, fault tolerance, and complexity Understand the distributed systems research upon which modern databases are built Peek behind the scenes of major online services, and learn from their architectures

Statistics, Testing, and Defense Acquisition

Statistics, Testing, and Defense Acquisition PDF

Author: National Research Council

Publisher: National Academies Press

Published: 1998-05-08

Total Pages: 240

ISBN-13: 0309174198

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For every weapons system being developed, the U.S. Department of Defense (DOD) must make a critical decision: Should the system go forward to full-scale production? The answer to that question may involve not only tens of billions of dollars but also the nation's security and military capabilities. In the milestone process used by DOD to answer the basic acquisition question, one component near the end of the process is operational testing, to determine if a system meets the requirements for effectiveness and suitability in realistic battlefield settings. Problems discovered at this stage can cause significant production delays and can necessitate costly system redesign. This book examines the milestone process, as well as the DOD's entire approach to testing and evaluating defense systems. It brings to the topic of defense acquisition the application of scientific statistical principles and practices.

Dependability and Computer Engineering

Dependability and Computer Engineering PDF

Author: Luigia Petre

Publisher:

Published: 2011-04-01

Total Pages: 515

ISBN-13: 9781609607494

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"This book offers a state-of-the-art overview of the dependability research, from engineering various software-intensive systems to validating existing IT-frameworks and solving generic and particular problems related to the dependable use of IT in our society"--Provided by publisher.

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