%0 Journal Article %J International Journal of Information Technology and Web Engineering %D 2006 %T Integration of libre software applications to create a collaborative work platform for researchers at GET %A Olivier Berger %A Christian Bac %A Benoit Hamet %K collaborative work environment %K contribution %K free software %K groupware %K in-house applications %K libre software %K open source software %K OpenLDAP %K phpGroupware %K PicoLibre %K ProGET %K Sympa %K TWiki %K WebDAV %K wiki %X Libre software provides powerful applications ready to be integrated for the build-up of platforms for internal use in organizations. We describe the architecture of the collaborative work platform which we have integrated, designed for researchers at GET. We present the elements we have learned during this project in particular with respect to contribution to external libre projects, in order to better ensure the maintainability of the internal applications, and to phpGroupware as a framework for specific applications development. %B International Journal of Information Technology and Web Engineering %I IGI Global %V 1 %P 1-16 %8 07/2006 %0 Journal Article %J Proceedings of the 1st International Conference on Open Source Systems %D 2005 %T Why and how-to contribute to libre software when you integrate them into an in-house application ? %A Christian Bac %A Olivier Berger %A Véronique Deborde %A Benoit Hamet %X Free or open source software are common tools that everybody can use and customise at its convenience to create in-house applications. Using and customising free software is not sufficient to ensure that this in-house application will be maintainable at mid or long term. This paper draws lessons from our in-house project, the development of a groupware Web platform for researchers, to help defining a policy through which efficient contributions can be made to open source software so that the in-house projects may remain viable. %B Proceedings of the 1st International Conference on Open Source Systems %P 113–118 %8 June %G eng