The development of many highly dynamic environments, like pervasive environments, modified the behavior of users and consequently, their expectations from systems and applications used in these environments. Thus, a user equipped with a laptop can connect to different places, and, each time, like to use his applications integrating the functionalities offered by the physically or logically close environment. In this article, we offer the architecture of a system of automatic negotiated integration of services. This integration introduces the elements of decision of the integration (negotiation, automatisation) and an interface Integrable making possible the application of different techniques of integration (parameterization, downloading/uploading - deployment, composition, weaving).