Companies and work have undergone significant change in the last two decades, and a new productive model has emerged. This book shows how this model works and argues that it has a high degree of coherence in terms of the integration of functions within companies and the relation between "just in time" teamwork and new ways of employee mobilisation which together lead to increased productivity. From this evidence Durand creates a new and challenging theory of services which is nevertheless firmly rooted in the concrete experience of workshops and offices.