In 1997, Marshall Fisher gave manufacturers advice in order to build the most appropriate supply chain for the nature of the products they put on the market. A simple model was proposed: it involved evaluating according to a list of pre-established criteria whether the product should be classified as innovative or functional, then applying the supply chain management model corresponding to the product: for innovative products, a process responsive to the market must be applied, while for functional products it is a matter of putting in place an efficient physical process. This model has been quantitatively tested several times, and has been highly nuanced. The question of the existence of hybrid models is also raised, in particular for certain sectors of activity. This article proposes to show if the Fisher model is applicable (totally or partially) to the IT sector. The article is based on a monographic study carried out in a multinational company in this sector, whose products are both innovative and functional. Our objective is to explain which models of integrated supply chains the company currently implements according to the types of products and to compare the processes proposed by Fisher to those actually implemented in the company. The study will endeavor to justify the differences observed between theory and practice and to propose perspectives of evolution of the models of configuration of supply chains.