Information systems have been developed to meet data management needs of environmental research observatories in order to make data available for scientific communities. Software architecture of these IS is structured around (i) a central component dedicated to generic functions shared by all IS and (ii) modular components specific to the environmental themes studied by the observatories. The creation of the IS is done by inheriting the core component and using the appropriate modular components. SI are developed with the Java language (version 8). The components are Java projects that follow the structuring of a "multi-module" Maven project. The web interfaces are developed by using the framework JSF with Primefaces user interface component library. Spring and Hibernate frameworks complete the development tools. PostgreSQL is the relational database management system used. (2019-01-18)