Money management equates with position sizing. Most traditional - fixed fractional, where you risk a percentage of your trading capital on one trade. 1 - 2% is a typical recommendation. Then there is Kelly formula, which estimates the fraction of the capital you can risk according to the results of backtest. There is also Fixed Ratio, which I think is most useful for small accounts. Couple of more - Dynamic Position Sizing (developed by one Czech trader, forgot his name). In DPS you size the trade according to the stats of backtest as well: if the trade has a higher probability of winning you put more size, and vice versa. It is useful if you trade the strategy with different inputs. For example, a breakout of 10 bars has 40% probability of being successful, breakout of 30 bars - 55%. So you put one lot at 40 bar breakout, and two more lots if it is followed by a 30 bar break. That's the idea, obviously the details depend on actual numbers.
After rereading my post I realize it may have come out a little basic. Apologies if I am stating the obvious. I like playing the Guru.