Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Starting point

This book is a starting point of what is important to make a system safety.This provide over all view of system safety not software safety.The case studies in appendix are very important for safety engineers.Appendix A is the therac-25 story on Medical devices.Appendix B is Apollo 13, the DC-10 and Challenger, Aerospace.Appendix D is windscale, Three mile island and Chernobyl, Nuclear power.These are very bad accidents, so we should study more deep.The naming "safeware" is very good wording, this is not safe software nor safe hardware.Go ahead, after this book. There are many resources about sytem safety and software safety.We have already many experiences about HAZOP.ps.2011/1/18, we have a Workshop on Critical Software(WOCS2011) with Nancy.