The discussion about increased product complexity in Western European companieshas been omnipresent for decades. This is due to ever new demands (real or con-ceived) from the market and new possibilities (technical and others) open to the pro-viders of products and services to come up fast with very specific solutions. The man-agement of this complexity inside the company so as to achieve a balance between themarket benefits of more customer specific solutions and the internal costs induced bythis is still a big challenge. After years of research in this area there is still a lack oftools to help practitioners to take decisions about the right degree of complexity for aproduct or the right design of a product architecture.Mr. Marti brings together three perspectives on this topic in an easily understand-able and communicable way: The strategy of the company (combined with the matur-ity of the product), the functionality, and the physical complexity on a componentlevel. The visualization in a complexity matrix is an important new tool especially forfostering the understanding for complexity issues in a company!With this book Mr. Marti has come up with an outstanding contribution to productcomplexity management, which is crucial for the future competitiveness of companiesin Western Europe. I hope that this book will find a broad distribution as well in prac-tice as in theory for the sake of our countries!Prof. Dr. Thomas Friedli