This book discusses the key concepts of the technologies that underpin the drive towards sustainability in today s complex world. The authors propose an integrated view of the frontiers facing any organization nowadays whether an enterprise, an administration or any human collective construction that operates with a goal, a mission or an objective. While a unified approach still seems unachievable, the authors have nevertheless tackled the amalgamation of the underpinning elements (theories, domains of expertise and practice) and propose a model for assimilating the new concepts with a global view to design the sustainable organizations of the future. The book paves a way towards a general convergence theory, which will manifest, as a by-product, genuine sustainability. Furthermore, and due to the fact that the same main principles apply, the book redesigns the notion of competitiveness , which today is too often simply reduced to profitability.