In professional practice, many designers collect and maintain personal notes as guidelines about experiences and insights for handling technical problems and design situations. An intelligent personal assistant (IPA) can act as a database for these notes, making the entire design process more efficient. Based on real industrial procedures, this book contains practical examples for professionals and students interested in real implementations of knowledge based systems in engineering. It integrates two major ideas: a computer system integrating computer design tools and a computer system fulfilling the role of an intelligent personal assistant. This user-friendly approach to the main ideas, concepts and techniques shows how an IPA can serve as a significant and fruitful knowledge based technique in engineering design.