A complete trading system
The Turtle Trading System was a Complete Trading System, one
that covered every aspect of trading, and left virtually no decision to the subjective whims of the trader. Most successful traders use a mechanical trading system. This is no coincidence. A good mechanical trading system automates the entire process of trading. The system provides answers for each of the decisions a trader must make while trading. The system makes it easier for a trader to trade consistently because there is a set of rules which specifically define exactly what should be done. The mechanics of trading are not left up to the judgment of the trader. If you know that your system makes money over the long run, it is easier to take the signals and trade according to the system during periods of losses. If you are relying on your own judgment during trading, you may find that you are fearful just when you should be bold, and courageous when you should be cautious.
If you have a mechanical trading system that works, and you follow it consistently, your trading will be consistent despite the inner emotional struggles that might come from a long series of losses, or a large profit. The confidence, consistency, and discipline afforded by a thoroughly tested mechanical system are the key to many of the most profitable traders’ success. The Turtle Trading System was a Complete Trading System. Its rules covered every aspect of trading, and left no decisions to the subjective whims of the trader. It had every component of a Complete Trading System.

A Complete Trading System covers each of the decisions required for successful trading:
Markets - What to buy or sell
Position Sizing - How much to buy or sell
Entries - When to buy or sell
Stops - When to get out of a losing position
Exits - When to get out of a winning position
Tactics - How to buy or sell
Markets – What to buy or sell
The first decision is what to buy and sell, or essentially, what markets to trade. If you trade too few markets you greatly reduce your chances of getting aboard a trend. At the same time, you don’t want to trade markets that have too low a trading volume, or that don’t trend well.
Position Sizing – How much to buy or sell
The decision about how much to buy or sell is absolutely fundamental, and yet is often glossed over or handled improperly by most traders. How much to buy or sell affects both diversification and money management. Diversification is an attempt to spread risk across many instruments, and to increase the opportunity for profit by increasing the opportunities for catching successful trades. Proper diversification requires making similar, if not identical bets on many different instruments. Money management is really about controlling risk by not betting so much that you run out of money before the good trends come. How much to buy or sell is the single most important aspect of trading. Most beginning traders risk far too much on each trade, and greatly increase their chances of going bust, even if they have an otherwise valid trading style.
Entries – When to buy or sell
The decision of when to buy or sell is often called the entry decision. Automated systems generate entry signals which define the exact price and market conditions to enter the market, whether by buying or selling.
Stops – When to get out of a losing position
Traders who do not cut their losses will not be successful in the long term. The most important thing about cutting your losses is to predefine the point where you will get out before you enter a position.
Exits – When to get out of a winning position
Many “trading systems” that are sold as complete trading systems do not specifically address the exit of winning positions. Yet the question of when to get out of a winning position is crucial to the profitability of the system. Any trading system that does not address the exit of winning positions is not a Complete forex Trading System.

Author's Bio: 

I am nguyen anh tuan, my parents always call me "Tuan" and now i am a businessman in trading forex for GAINcapital. I love my job very much!