Project management and collaboration over the internet. Features team/client sites, task assignment, document repository/workflow, gantt charts, discussions, calendar, notifications, support requests, weblog newsdesk, invoicing, and many other tools.
Team Elements is an Enterprise 2.0 team collaboration suite. It ties discussions, wikis, RSS, project and document management, and federated search into a unified application. It is database-driven with rigorous role-based access and permissions.
SPM for XOOPS is a set of XOOPS modules (collaboration management, document management, tasks organizer, events calendar, etc) to manage projects and all related tasks with them.
CODSYS is a GPL Perl/Web-based system for collaboration. The system uses a backend XML file for all data, and lays the contents out in a tree structure identical to the layout of the XML document.