From EduTechWiki - Reading time: 1 min
A groupware, also called collaborative software, is a software that supports multiusers tasks on the same platform. Instead of a workflow processed-centered task, groupwares enable a workflow information-centered task in which all actors can access and modify an information.
Groupwares aren't only softwares that permit to share and access the same information. Groupware also includes:
Here is a not so complete typology of different kinds of systems (including a few examples)
.... in fact, most portals can be used as groupware.