SI has strong and active communities. These are
Special Interest Groups – SIG (19 groups)
Regional Sections (1 for Suisse Romande)
Interdisciplinary communities (5 communities)
Communities of IT Experts SI (6 communities in the setup process)
They all discuss and delve into their topics, publish and organise events.
Membership in a community is open to all members of the SI, with the exception of SIRA (which is restricted to professors at Swiss university departments).