The complete trading system includes:
1. Subject matter - what to trade;
2. Position - how much to hold;
3. Direction - long or short;
4. Entry point - at what price to trade;
5. Stop loss - when to exit a losing position;
6. Stop profit - when to exit a profitable position;
7. Countermeasures - how to deal with emergencies;
8. Backhand - operations after the transaction ends.