[TYPO3] Suggest plugin for Project management

[Atul Shinh]

Hi all,


I am about to work on project in which a single plugin will be core of
project. The plugin will handle three kind of users with different
permissions.
The users will be categorized as :-

*) Admin
*) Client
*) Assistant

The admin will create projects for clients and tasks for assistants. All the
users will communicate through single interface that the plugin will
provide. So plugin is supposed to have a messaging system and file
management system as assistant's work is related to file uploading.  It is
actually requires a big extension to handle all this. I dont know about any
of typo3 plugin that provides such functionality. If anybody has  idea about
such plugin please reply back.


Thank in advance
Regards
Atul Shinh