The main theme of this book is to describe complex phenomena as structures of interacting objects.
Object technology is applicable to a wide range of phenomena on many different levels.
Examples are work procedures on the enterprise level, large scale applications on the systems level, and small, technical details on the program design level. To show how very large and complex systems can be described by a number of distinct models. To show how composite models can be derived from simpler base models. To describe a number of powerful reuse techniques. To describe how a systematic policy of reuse impacts on work processes and organization.