I've started researching different trading methodologies and have found the process somewhat messy. From what I can tell there aren't really that many promising distinct systems out there. What there do seem to be a lot of though are many variations on what are indicator specific systems. I'm curious about what some of the most basic well-known systems are. Some of those I am aware of are The Turtle Trading system Wilder's Directional Movement system Wilder's Volatility system The Woodies CCI system Jack Hershey's Equities method What are other well-known systems that display some merit? I know many of these cannot be considered complete in the full sense but few I've seen are. Thanks for any help you can give.