Development of grey system research

The first chapter presents an introduction to grey system theory. We begin with some background information on the appearance and growth of grey system theory and founder “Professor Julong Deng”, who established the new branch of science. Then we examine the development history and current state, followed by a comparison of grey system theory with other uncertain systems theories such as probability and statistics, fuzzy mathematics, and rough set theory. Finally, the elementary concepts, the fundamental principles and the framework of grey system theory are presented. This introductory chapter vividly presents the reader with an overall picture of grey system theory and its frontier research.