Abstract : The reuse, the evolution or the fast adaptation of the code of an application are among the strongest concerns of companies. Model engineering tries to bring a solution putting the model in the center of the software development and by capturing the business know-how initially described in the code of the application. This approach has the advantage to make the description independant of software platforms. Our objective in this paper is to present three different approaches for the composition of models, to evaluate them using the criteria proposed by the AOSD-EUROPE network of excellence in order to extract relevant information. From this evaluation, this paper provides new proposals. The evaluation aims at showing the capacity of each approach to support the composition of both functional and extra-functional concerns.