The basic idea of extension engineering is to deal with contradictions in different fields with formalized methods and study how to change incompatibility into compatibility, antagonism into co-existence and the negative into positive. The book systematically elaborates the theoretical foundation, methodology and fields of application of extension engineering and presents application cases of extension engineering methods.

The characteristics of the book lie in its combination of theory with practice, thorough analysis and better operability. Each part of the book is followed by some simple and lucid cases so that readers with different backgrounds and different levels can learn something. The book is suitable for teachers and students in colleges and universities, engineers and technicians and management decision makers. It is better to be an optional course for undergraduates, post-graduates and doctoral students of related majors in colleges and universities.