This book addresses the question of how system software should be designed to account for faults, and which fault tolerance features it should provide for highest reliability. The authors first show how the system software interacts with the hardware to tolerate faults. They analyze and further develop the theory of fault tolerance to understand the different ways to increase the reliability of a system, with special attention on the role of system software in this process. They further develop the general algorithm of fault tolerance (GAFT) with its three main processes: hardware checking, preparation for recovery, and the recovery procedure. For each of the three processes, they analyze the requirements and properties theoretically and give possible implementation scenarios and system software support required. Based on the theoretical results, the authors derive an Oberon-based programming language with direct support of the three processes of GAFT. In the last part of this book, they introduce a simulator, using it as a proof of concept implementation of a novel fault tolerant processor architecture (ERRIC) and its newly developed runtime system feature-wise and performance-wise. The content applies to industries such as military, aviation, intensive health care, industrial control, space exploration, etc.

About the Author

Dr. Igor Schagaev is a Professor and Head of Laboratory of Applied Computer Science and Technology (LACOST) Faculty of Life Science and Computing and London Metropolitan University. He is a Fellow of the Institute of Analyst and Programmers (UK) and has previously work as an Electromechanical Engineer at the Smolensk aviation factory, USSR, a Senior Programmer and Design Engineer at the Institute of Advanced Computations, Central Bureau, Smolensk Branch, and a Senior Design Engineer and System Programmer for Avionics, and was Director of ATLAB Ltd Bristol. He has published 5 books, over 60 papers, and has been honored with several industry awards, achievements, and grants.

Dr. Thomas Kaegi-Trachsel received his PhD in 2012 in ETH Zurich in the area of system software for embedded systems (under supervision of Prof Schagaev). He is currently a Senior Researcher at IT-ACS Ltd.

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