Conjugating science gateways and grid portals into e-collaboration environments: the Liferay and GENIUS/EnginFrame use case

Nowadays, e-Science uses sophisticated high level tools that allow scientists separated by long distances and belonging to different administrative domains to work on the same project. Among them, Science Gateways and general purpose Grid Portals are becoming very popular. The first ones are generally customized for a given Virtual Research Community (VRC) while the second ones lack very often the possibility to be easily adapted to specific needs. In this paper we present a new e-Collaboration environment that merges the concepts of Science Gateway and Grid Portal. An implementation case using Liferay and GENIUS/Enginframe technologies will be shown.