VLE is mainly used by the RECORD platform. RECORD is a platform of modelling and simulation of the agro- ecosystems. RECORD offers a set of software tools based on top of the VLE software suite. RECORD provides also webrecord (web interface for models) and a library models. It is open to the community INRA and its partners. This project is supported by Environment & Agronomy and Applied Mathematics and Informatics divisions of the INRA.