This book divides the engineering reliability process into three parts.  Part I focuses on system reliability estimation for time independent and time dependent models, helping engineers create a "firm" design. Part II aids the reader in assembling necessary components and configures them to achieve desired reliability objectives, conducting reliability tests on components and using field data from similar components. Part II does this by presenting the concept of constructing the likelihood function and its use in estimating the parameters of a failure time distribution. The computer software Reliability Analysis Software, which accompanies this book, provides useful tools for reliability estimation, failure time distributions, and a wide range of accelerated life models, and these are discussed in depth in Part II. Finally, once a product is produced and sold, the manufacturer must ensure its reliability objectives by providing preventive and scheduled maintenance and warranty policies. Part III of the book focuses on these topics. Every theoretical development in this book is followed by an engineering example to illustrate its application. Problems are included at the end of each chapter. These two features ensure the usefulness of this book as a comprehensive reference for practitioners and professionals in the quality and reliability engineering area. This book is also useful for reliability engineering courses geared towards senior undergraduates or graduate students in industrial and systems, mechanical, and electrical engineering programs.