BRCs need to manage their collections using effective information technology, based on open-access web technologies, adapted to their diverse management needs. For several years, various pragmatic initiatives have been developed independently by BRCs or groups of BRCs, in order to develop their tools. One of the pre-existing tools has been used for fifteen collections. It is currently being adapted, using this generic and consensual model. The work was led by four computer scientists, including a fixed-term contract, and by a group of collections managers and other IT professionals. With the aim of sharing and improving performance, a working group was formed in November 2014 at the request of BAP department of INRA, for examining the situation, and for devising a joint development strategy shared by the BRCs in charge of plant genetic resources in France, overseas and mainland (INRA, Cirad, IRD). The group's conclusions are that it is necessary to come to a limited number of tools (ideally a single one) that are generic at all levels, configurable by the user according to his BRCs’ specificity, with a collaborative maintenance and improvement Three partners have already worked on this common concept and a conceptual data model has been validated by this group of BRCs. The object of the present proposal is to go beyond that stage of "good will” and to develop an information systeme (Coll-GATE-IS) with the core functionalities for the BRCs who need it. This will be done through the improvement of one of the existing tools. Along with the local needs of collection management, this tool will take into account the needs of interoperability at the national level (link with GnpIS-Siregal, the RGScope, Florilège and other future portals), as well as at the European and international level (link with EURISCO, GBIF, ...). For this purpose, the project will contribute to the improvement of the use of international metadata standards and ontologies in the BRCs of the network by developing an online “cookbook” of good practices that will be in turn implemented in the . Beyond the technical achievement, this project will allow us to continue the momentum of dialogue and networking we undertook, in order to gain relevance in our choice of tools, and finally to strengthen our international visibility.