Architecture for User behaviour tracking

Hi!
I have to develope sw components (java) to evalueta sw + user behaviour. we have a “simple” three tier architecture, but the problem is, i should implement an architecture so that the programmer do not need to do anything (!) for me, but I should become all the information I can get. On the following site you can find a brief description of my problem with some explanations. The red boxes are my components, that gather data and evaluate it.
For details, please visit:
http://www.ars-ev.de/problem/problem.html
I would welcome any suggestions!
great thanks!

s.okujava