Tricorder is a Rails application, so if you have Ruby and Rails installed, you're most of the way there. You still need to
Download and install the RDP Classifier command line application: http://rdp.cme.msu.edu/download/rdp_multiclassifier.zip
config/tricorder.ymland change the path to point toward your RDP Classifier script.
bundleto install all the dependent gems.
./script/delayed_jobto start the DelayedJob daemon
From there you should be able to start the server locally with
rails server, or serve the app publicly in any way you choose.
If you just want to see Tricorder in action, check out http://genegrabber.berkeley.edu/tricorder/.
Active development on this project has mostly ceased, but if you want to fork and run with it, have a blast!