When its all said and done, JKD is a "process" and not a "product". Its the process of discovery and is NOT a "style" in other words. This process however is not chaotic and does have an general outline.
Before continuing on with this thread, have a look at the following link:http://en.wikipedia.org/wiki/Jeet_Kune_Do
That's a good place to start this discussion. We can go on from that point. Ultimately, JKD is a personal experience. However, there ARE certain tenets within that philosophy. The website linked to above does a fairly decent job of elaborating on those.