MAX is a system for collecting and viewing activity logs generated by users and applications as well or by the interaction between users and applications.
MAX records activity in two ways: active and passive. The active mode is when users and application contact with the MAX API for register the activity they generate. The passive mode is when MAX try to find the activity that is generated by some external systems through predefined rules, for example, the activity generated by a Twitter account and hashtag associated.
For more information, please visit the documentation (only in Catalan at the moment, sorry for the inconvenience):
http://max.beta.upcnet.es/docs/v3/ca/
And the development buildout:
https://github.com/UPCnet/maxserver