... SYSTEMS 1Real-Time Systems Design and Analysis: Tools for the Practitioner, Fourth Edition. Phillip A. Laplante and Seppo J. Ovaska.© 2012 the Institute of Electrical and Electronics Engineers, ... defi -nitions, and others that are available, are quite different, and their differences are often the cause of misunderstanding between computer, software and systems engineers, and the users ... of this book. And this book is now as much his vision and legacy, as the fi rst three editions were mine. Phil also wishes to thank his wife Nancy and his children Christopher and Charlotte...